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ESSAR STEEL HAZIRA LIMITED

1.35 MTPA COKE OVEN COMPLEX

TECHNICAL SPECIFICATIONFOR

DRY FOG DUST SUPPRESSION SYSTEM FOR(OSBL) OF COKE OVEN COMPLEX

(COAL & COKE CONVEYORS)

ESSAR ENGINEERING SERVICES DIVISION.

HAZIRA

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ESSAR STEELHAZIRA LIMITED


TECHNICAL SPECIFICATIONFOR DRY FOG DUST SUPPRESSION

SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

DETAILS OF REVISION:

DATE DETAILS OF REVISION REVISION NO.

27.06.11 ISSUED FOR IDC A

11.07.11 ISSUED FOR CLIENT APPROVAL P0

13.07.11 ISSUED FOR PROCURMENT 00

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SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

CONTENTS

CHAPTERNO. DESCRIPTION PAGE NO.

1 GENERAL INFORMATION 7

2 SCOPE OF WORK 8

3 TECHNICAL SPECIFICATION 12

4 INSPECTION & TESTING 44

5 HSE REQUIREMENT 45

6 DELIVERY 46

7 PAINTING 47

8 WORKMANSHIP & PERFORMANCE GUARANTEE 48

9 SPECIAL INSTRUCTIONS TO SELLER 49

10 DOCUMENTS TO BE SUPPLIED 50

ANNEXURES

I SITE CONDITIONS 53

IIFORMAT FOR DEVIATION FROM TENDERDOCUMENT 54

IIIQUESTIONNAIRE TO BE FILLED IN AND SUBMITTEDWITH OFFER 55

IV OVERALL SUPPLY & IMPLEMENTATION SCHEDULE 56

V BILL OF QUANTITY 57

VI QUALITY ASSURANCE PLAN 59VII TECHNICAL DATA SHEETS 60

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TECHNICAL SPECIFICATION

FOR DRY FOG DUST SUPPRESSIONSYSTEM

TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

SITE INFORMATION

Owner Essar Steel Hazira Limited (ESTL),

27th Km, Surat Hazira Road,

Hazira, Surat – 394 270

Gujarat State.

Tel: +91-261-668 1661

Fax:+91-261-668 1666

Projects Essar Project (India) Limited (EPIL),



Gujarat State. Tel: +91-261-668 3600

Fax:+91-261-668 3166/3260

Design Engineering Consultant Essar Engineering Services Division (EESD),



Gujarat State.

Tel: +91-261-668 8861

Location of the plant At Hazira, Surat Hazira Road,

District : Surat,

State: Gujarat.

Nearest Railway Station & Distance Surat Railway Station is about 24 km.

Nearest Airport Surat Airport at a distance of about

20 km from site.

Latitude and Longitude Latitude : 230 43’ 0” N

Longitude : 84

0

47’ 0” EElevation above mean sea level About 6.3 m

Soil Conditions

0 – 4m Loose to blackish fine sand

4 – 6m Traces of blackish plastic clay

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

Climatic conditions

Temperatures : Annual basis

Mean Yearly Temperature 26.6°C

Maximum Absolute Temperature 45.6°C

Mean Yearly Maximum Daily Temperature

42.3°C

Mean Yearly Minimum Daily Temperature 10.9°C

Wet bulb temperature 26°C

Average humidity in hottest months 87%

Average humidity in Coldest months 33%

Annual average rainfall Annual average rainfall is about 1203.5 mm(most of which occurs during the monsoonseason from J une to August)

Maximum rainfall in 24 hours 459mm

Prevailing direction of wind in summer South west to North east

Prevailing direction of wind in winter North east to South westAverage Wind speed 12.2km/h

Basic Wind Speed (Vz) as per IS 875-1987 (Part-III) at 10m height

44 m/sec

Seismic Zone Zone – III, Importance Factor as per Clause8.3.2 of IS 1893-2002 Part 1, Generalprovisions & Buildings. “Criteria for earthquakeresistant design of structures” and peak ground

acceleration (PGA) is 0.16g.

Present use of land Industrial Area

Topographical features of the site Industrial Area

S f i i

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

POWER SUPPLY

The following ambient and power supply conditions shall be considered by the while

selecting the Electrical Instrumentation, Automation, Telecommunication Equipment foroperation:

i) Altitude of site : <1000M (above sea level)

ii) Ambient temperature:- Oven Area- Under Shed/ ECR- Under direct incidence of

sunrays

: 55 OC: 45OC: 50OC (Outdoor)

iii) Relative humidity : 100%

iv) System Voltage : 33 kV, 3-Phase, 3-wire: 6.6kV, 3-Phase, 3-wire: 415V, 3-Phase, 4-wire

v) Frequency : 50 Hz

vi) Voltage Fluctuation : ± 10%

vii) Frequency Fluctuation : ±5%

viii) Fault Level : 26.2 kA for 3 Sec for 33 kV: 40 kA for 3 Sec for 6.6 Kv: 50 kA for 1 Sec for 415V

ix) System grounding : 33 kV – Solidly earth: 6.6 kV – Resistance earthed: 415 V – Solidly earthed

x) Control Voltage : 230/110V AC, 1-ph, 50 Hz(All filed instruments shall be 2-Wire, 24 VDC,Smart Type transmitters, with local indicator.)

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

1.0 GENERAL INFORMATION

1.1 ESSAR steel Hazira limited desires to set up coke oven complex at Hazira,

Gujarat, India. The coke produced in this complex will be mainly used in Blast

furnace, Corex furnace and sinter plant. Coal & Coke handling system of outside

boundary limit comprises the conveying of coal & coke material to the boundary

limit.

1.2 Dust emission at conveyor transfer point have become a significant problem of

increased emphasis on improving the work place environment and strict

adherence to environment regulation & norms. High efficiency Air pollution

control systems are therefore envisaged in preserving the environment for human

comfort and efficient running of plant & machinery itself.

1.3 This technical specification together with the reference documents describes the

requirement for Design, manufacture and supply of Complete Dry Fog Dust

Suppression System.

1.4 Process Description

Dry Fog Dust Suppression System for Conveyor transfer points in J unction

Houses are as follows :

Dry Fog Dust Suppression System

‐ This Dust Suppression system is carried out by spraying water at required

pressure atomized by compressed air through nozzles at the material transfer

points in J unction Houses. The proposed dust suppression systems shall be

automatic in which case a particular spray is ON or OFF depending on whether

that particular conveyor operation is ON or OFF. Provision of manual operation

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

‐ The water pump sets shall also be interlocked with low level switch of feed

water tank to prevent the pump from dry running. A pressure switch at the

pump discharge line shall be provided to bypass water to storage tank in case

the pressure increases above the set value.

‐ Dry fog suppression system covers NJ H-4, NJ H-5, NJH-6, NJH-7, CRJ H-1,

CRJ H-2, CRJ H-3, JH-9B, JH-9, JH-9A, JH-9C AND J H-22. The pump sets and

compressors have been proposed to be installed in the pump house cum

compressor house. Piping & fittings from pump house to Junction houses shall

be provided.

‐ The dust suppression application point shall be provided at all the material

transfer points in junction houses. The tentative list of application points is

indicated in table under Clause 3.4.

‐ The water addition through dust suppression systems shall be approximate

0.01% of the weight of material being handled.

Service taps for Water and Compressed Air

‐ Along the conveyor gallery & each junction house, service taps for Water shall

be provided with manual isolation valve from Dry Fog System.

2.0 SCOPE OF WORK

2.1 Design & Engineering

The Scope of Design & engineering shall include but not limited to the followings:

i) General Arrangement drawings of Offered Equipment/System.

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

vii) Operation and Maintenance manual.

viii) Manufacturing Delivery Schedule of Equipment/System.

2.2 Supply (Based on Annexure-V and Flow Sheets)

Mechanical

The scope of work of this specification covers design, manufacturing,

procurement, assembly, shop testing, shop painting, packing and supply of all

equipment & accessories, transportation of all materials to site, transit

insurance, unloading, storage, site assistance during erection, testing andcommissioning, performance guarantee of all the equipment & accessories and

integrated system of dust suppression systems for material transfer points in

different junction houses.

The scope of work shall broadly cover but shall not be limited to the

following:

¾ To supply at site all required materials in order to execute incidental works at

site associated with the dust suppression systems for material transfer points in

various junction houses as specified under this technical specification.

¾ Providing first charge of consumables like oil, grease, lubricants etc. as

required. The quantity and specification of such consumables shall be indicated

by the Seller.

¾ Supply of commissioning spares as may be required during erection, start up

and initial operation of all the systems till successful completion of

commissioning. The price of the commissioning spares shall be deemed to be

included in the contract price of the equipment.

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

¾ Screw Type, Air Cooled Compressor shall be provided for the provision of

Compressed Air to the Dry Fog Dust Suppression System.

¾ Any other item/ nature of work which is not specifically appearing in the

technical specification but directly or indirectly associated with the efficient

working of the systems covered in the specifications.

¾ Making arrangement for inspection and testing at manufacturer’s works and at

site.

¾ Performance testing of various equipments associated with DFDS system at

manufacturer’s works and also performance testing of complete DFDS systems

at site.

¾ Seller shall note that the completeness of the system for safe, smooth and

trouble free operation of the DS system is the sole responsibility of the

successful Seller. With this objective in mind, the Seller shall include all the

items essential for the efficient operation of the systems and other items which

are required to complete the erection and fool proof commissioning of DFDS

systems in all respects. Whether these items are mentioned in the

specifications and there shall be no commercial implications due to such items.

¾ Supervision of Erection and commissioning of the complete system will come

under Seller scope.

Electrical & Instrumentation

¾ The scope of work of the Seller shall include design, engineering,

manufacturing and shop testing at site of complete electrics including Control

/Signal/Power cable from field instruments to Local control panel. The complete

electrics shall include Motors, control panels, Local Push Button Station,

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

¾ Seller shall provide provision for extending I/O from local panel to main PLC.

¾ The scope of work shall also include supply of all commissioning spares, two-

year normal operation and maintenance spares and special tools and tackles.

¾ Seller shall note that purchaser will provide 415V ±10%, 50 Hz ±5% power

supply at the incoming terminals of the control panels for Dry Fog dust

suppression system. Seller shall include necessary starters for pump motors,

solenoid power supply, and necessary interlocking and control equipment for

dust suppression system inside the control panel.

¾ During Detail engineering vendor shall get approval for the following.

-Data sheet for all field instruments.

-Cable schedule & termination details.

-Local control panel GA

-Local control panel termination detail.

2.3 Exclusion

The following items are excluded from the scope of work of the Seller:

i) Engineering of civil foundation/structural works. However Seller to furnish

foundation/structural Load Data.

ii) Supply of EOT cranes, hoists, general structures, Plant Lighting.

iii) Providing space for installation of Dry Fog dust suppression systems.

iv) Make-up water up to battery limit at 2 Kg/cm² at ground level.

v) Foundation for equipment.

vi) R.C.C. water storage tank for DFDS system for J unction Houses.

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

3.0 TECHNICAL SPECIFICATION

3.1. MECHANICAL

The equipment will normally be as per the general specification of the project.

However, brief description of main equipment is given below.

3.1.1. Spray nozzles [Dry Fog Dust Suppression System]

The spray nozzles shall be suitable for the system requirement. The brief

specification of the spray nozzles is as follows.

Size of the inlet connection To suit spray header pipe size andfittings

Spray nozzle typeAir Atomizing Hollow cone spraytype

Material Stainless steel

Flow rate To be indicated by the Seller

Pressure at Spray nozzle To be indicated by the Seller Throw To be indicated by the Seller

Spacing To suit complete coverage

Particle size of spray To be indicated by the Seller

Coverage angle and area To be indicated by the Seller

Dimensions To be indicated by the Seller

Weight To be indicated by the Seller

Spray characteristics

Fine particle type forming an overallhollow cone type pattern to achievedesired suppression of dust.

Th l d i h ll b d i d f t d t t d

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

limit & to prevent stress concentration anywhere in the equipment design.

Castings shall be subjected to Non- destructive testing.

‐ All nozzles and accessories shall be packed in wooden boxes/ crates to avoid

damages during loading at works and transportation.

3.1.2. Screw Compressor with Air Receiver (Air Cooled)

Screw Compressor :

‐ Combined Air intake/suction filter and silencer unit with a filtration efficiency of

99% up to 5 micron particle size and the balance not exceeding 10 micron size. The filter unit shall be installed in filter housing.

‐ Electric motor direct driven / through gear box and coupling guard. Driving

motor shall have adequate margin over rated capacity of compressor not less

than 10%.

‐ The compressor capacity control shall consist of step less control/ throttle

control. ‐ Non-return valve and isolation valve on air delivery line after the compressor.

‐ Air cooled type complete with fan and electric motor.

‐ Interconnecting pipes, fittings, valves including counter flanges, nuts, bolts,

gasket for air and oil pipe lines.

‐ Sound insulation hood. (the noise level must not exceed the allowable limit of

85 dB(A) at 1 meter distance from the machine)‐ The Design Code for the Compressor shall be API-619/ ISO-1217.

‐ Casings shall preferably be Cast Iron.

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

‐ Screw air compressor data sheet:

Quantity 2 no. (1W+1S)

Rated capacity – FAD 5194 Nm³/hr (vendor to conform)Discharge Pressure 6 bar (vendor to conform)

Duty Continuous

Type Air cooled screw type

Design Relative Humidity 60%

Ambient Temp. Max: 48̊ c and min: 5 c̊

Medium of Cooling Air

Lubrication of Bearing Vendor to specify

Motor Speed 1500 rpm

BKW Vendor to specify

Motor Rating kw Vendor to specify

Type of Drive Directly coupledMOC

Casing

CI IS 210 or ASTM A 278 CI 40/Fabricated Steel ASTM A 353/ Cast SteelASTM A 216 GR WCB Normalized/CastSS ASTM A743and 744 C46- NM/CastIron Grade 260

ShaftForged Steel AISI1030-1035/Forged SS

ASTM A151 type 410 SS

Rotor BodyCI ASTM A 395/Forged Steel AISI 1030-1045/Cast Aluminum ASTM B 26 Alloy355 or C355/ AISI 1141 Forged Steel

Base Plate Fabricated Steel

Bearing Vendor to Specify

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

Air Receiver :

‐ Air receivers shall be vertical self supporting in cylindrical design with dished

end at both ends having minimum capacity of 2 m3 volume. The air receiver

shall be designed for a working pressure of 8 kg/cm2 g. Design, manufacture,

inspection and testing of air receiver shall be in accordance with IS:7938 and IS

: 2825 -1969 (RA 1984), Class-2, Dished ends IS:4049 Part-I, 1979 (RA 1991).

‐ Ai r Receiver design sheet:

Number Required 1 (Vendor to Conform)

Type Vertical/ Cylindrical with welded dished ends.Operating Pressure 6 bar (vendor to conform)

Design Pressure 8 bar (vendor to conform)

Design Temp. 48̊ c

Nominal Volume 2m³ (vendor to conform)

Dimension (vendor to conform)

Applicable Code with IS:7938 and IS : 2825 -1969 (RA 1984),Class-2

Corrosion Allowance 3mm

Shell and Dished End Material ends IS:4049 Part-I, 1979 (RA 1991).

The air receiver shall be supplied with following accessories:

‐ Circular skirt welded to the bottom portion of the shell.

‐ Circular base plate welded to the skirt with holes for foundation bolts.

‐ Foundation bolts/ studs, nuts, washers.

‐ Nozzles for inlet and outlet with weld neck flanges.

‐ Manhole nozzle at an accessible height with weld neck flange and cover having

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

‐ Vent valve at the highest point of the dished end for releasing the air during

hydro test.

‐ Water drain nozzle at the lowest point with drain isolation valve.

‐ Companion flanges with bolts, nuts and gaskets for inlet and outlet nozzles

and other valves.

‐ Stubs for pressure indicator for local measurement of pressure.

The Applicable formula as per IS-7938:

T = V*(P1-P2)/C*P0

Where

T =time in hours receiver supplies air from upper to lower pressure limits;

V =volume of receiver in m3 (a);

PO =atmospheric pressure in bar;

P1 =maximum pressure, absolute in bar (compressor discharge pressure );

P2 =minimum receiver pressure, absolute in bar (pressure required to operate tool );C=amount of free air drawn per hour in ms ( from study of local cycle ).

3.1.3. Centrifugal Pumps

‐ Vertical Multistage Centrifugal pumps shall be provided. Pump casing shall be

vertically split type. Impeller rpm shall generally not exceed 1450. However, for

pumps with low capacity & high head may be provided with 2900 rpm. Pump

shall be coupled to motor with flexible coupling. Spacer type coupling shall be

provided.

‐ The pumps shall be designed, manufactured and tested as per IS: 1520-1980

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

‐ The centrifugal pumps along with their auxiliary equipment shall be suitable for

the required duty conditions and shall be designed and manufactured for

continuous duty at full load.

‐ All the Pump shall give satisfactory performance at any point on the H-Q curve

over a range of 40% of rated flow to 120% of the rated flow. The maximum

efficiency shall preferably be within ±10% of the rated design flow. The total

head -capacity curve shall be continuous rising towards the shut off without any

zone of instability and with a minimum shut-off head of 15% more than the

design head.

‐ Capacity verses discharge pressure curve for each pump shall preferably be

continuously dropping from the shut-off point to the rated operation point and be

suitable for parallel operation. The pumps shall be designed to avoid cavitations

at any of the operating points.

‐ The required duty range for a pump shall be on stable portion of its head-

capacity curve close to the best efficiency point. The head developed at the

best efficiency point shall be close to the required differential pressure so that

throttling is not required at pump discharge.

‐ The equipment and auxiliaries shall be designed for quick and economical

maintenance. The equipment shall be easily dismantled without disturbing the

suction and delivery pipe connections.

‐ The equipment design shall incorporate provisions for reduction in noise level.

‐ The rotating elements of the pumps shall be checked for critical speed in bends

as well as torsion. The critical speeds shall be at least 30% away from the

normal speeds for units with flexible shafts and at least 20% away from the

maximum operating speed in case of stiff shafts.

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

‐ A stainless steel name plate of 2mm thickness shall be provided and securely

attached by stainless steel pins at an easily accessible point on the pump. The

plate shall be stamped with the following minimum information:-

• DESIGN CAPACITY

• TOTAL HEAD /SPEED /MOTOR RATING

• MODEL NUMBER

• MANUFACTURER’S SERIAL NUMBER

• WEIGHT OF EQUIPMENT

‐ The total head-capacity curve shall preferably be continuously rising towards

the shut-off. The shut-off head shall be at least 110% of the total head.

‐ The required NPSH at duty point shall be at least 1.0m lesser than the available

NPSH.

‐ The noise level at 1m distance shall be within 85 dB (A) and the vibration shall

be as per VDI 2056.

‐ The power rating of the pump motor shall be larger of the following

• 110% of the power required at the duty point.

‐ For parallel operation, motor rating should be sufficient enough for running of

single pump also.

‐ The common base frame for pump and motor shall be in one piece with suitable

holes for grouting. Adequate space shall be provided between pump drain

connections and base plate for installation of minimum 15mm drain piping.

Pumps shall be supplied with suitable drain pans or drain rim type base plates

with valve drain connections.

‐ Coupling guard, made of expanded metal and bolted to the base plate shall be

supplied for all pumps.

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

whichever is higher. The hydrostatic tests on the casing shall be conducted for

a minimum duration of 30 minutes.

‐ Impeller shall be of SS-316 and balancing drums (if provided) shall be statically

and dynamically balanced. Dynamic balancing shall be at the operating speed

of the pump. For multi stage pumps, all the impellers shall be assembled

together for balancing. Provisioning shall be made for adjusting the clearance

between the impeller and the casting to compensate for wear.

‐ The impeller shall be keyed or screwed on to the shaft in such a way that it

does not come due to reverse rotation of the pump.

‐ The shaft shall be of EN8 or C-40 and shall be designed for critical speed. The

ratio of critical speed to speed of shaft shall not be less than 1.2 for solid shafts.

‐ The deflection in line shaft shall not exceed 1mm per meter of length. All shafts

above 150 mm diameter shall be ultrasonically tested. Shafts shall be checked

for endurance and strength. Change of sections in shafts if considered shall be

made with due allowance for stress concentration. Shafts shall be machined to

close tolerance for mounting on impeller bearings, shaft seal, shaft sleeve, shaft

coupling etc. The magnitude of shaft deflection at the face of the shaft seal shall

not exceed 5 microns.

‐ Vertical Multistage Centrifugal pump sets shall be provided with flexible

couplings of pin and bush type and shall be constructed of metallic materials

except for bush which shall be of rubber materials. Coupling shall be properly

keyed in place and the cylindrical fit shall allow simple removal of the coupling

in the field.

‐ Removable coupling guards shall be supplied and mounted. Guards shall be

sufficiently heavy and rigid to provide adequate personnel safety.

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TS NO - 1030-H000-Z06016-0015-1518-0001_00

AEGIS LIMITEDESSAR ENGINEERING

SERVICES DIVISION

‐ Two bearing assemblies shall be provided, one within the frame to carry radial

load only and the other to carry both radial and axial thrust. Bearings shall be of

manufacturer standard design, antifriction type, oil/grease lubricated. Suitable

thrust bearings shall be provided in the pump to take total thrust of the pump

including hydraulic thrust. Thrust bearings shall be of oil lubricated type with

suitable cooling arrangement. Suitable tapped holes shall be provided for

refilling of oil in the bearing housing.

‐ The pumps shall be tested as per IS- 5120, at rated speed at manufacturer's

works to measure capacity, total head, efficiency and power. The negative

tolerance on efficiency shall be limited to 2.5% and not 5% as indicated in

IS- 5120. These tests shall form the basis for acceptance of pumps except for

vibration and noise. The pumps shall be tested over the range covering from

shut-off head to the maximum flow. The duration of the test shall be minimum

one hour. Minimum five readings approximately equidistant shall be taken for

plotting the performance curves.

‐After installation, the pumps shall be subjected to testing at site. If the site

performance is found not to meet the requirements regarding vibration and

noise as specified, the equipment shall be rectified or replaced by the Seller, at

no extra cost to the Purchaser.

‐ Plate flanges having raised face shall be provided at suction and delivery side

of pumps and they shall be of mild steel and conform to table 17 of IS: 6392-

1971 (R.A. 1988). Slip on raised face flanges to 150 lbs. class confirming to

ANSI B16.5 shall also be acceptable.

‐ Black bolts and nuts confirming to IS: 1362-1992 shall be provided for the

companion flanges.

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TS NO - 1030-H000-Z06016-0015-1518-0001_00


SERVICES DIVISION

‐ The number of electrical motors required for following applications:-

Dry Fog Dust Suppression System

1 Motors for Water Pump – 1Vendor to specify the

KW rating2 Motors for Water Pump – 2

Vendor to specify theKW rating

3 Motorized Valve Actuator for Pump – 1Vendor to specify theKW rating

4 Motorized Valve Actuator for Pump – 2Vendor to specify theKW rating

5 Motor for Compressor – 1Vendor to specify theKW rating

6 Motor for Compressor – 2 Vendor to specify theKW rating

3.1.4. Pipes & fit tings

Water Piping and Fittings :

- Water line velocity shall be maintained less than 1.5 m/sec. Water pipe line

shall be supported at regular interval. IS-1239 heavy class, ERW, G.I. pipe line

(for size up to 150 NB) shall be used in the water line. The pipes above 150 NB

shall be MS, spirally welded, 6 mm thick & conforming to IS-3589. Pipe ends

shall be beveled. Pipe fittings shall be as per IS 1239, Part -2 for pipes of size

up to 150 NB. Fabricated fittings manufactured from the pipes may be provided

for pipes of sizes 200 NB & above. Plate type pipe flanges (as per IS 6392)

shall be provided.

- Pipes shall be of welded joints. Welding (manual metal arc welding) shall be as

per relevant IS code and only certified welders shall be employed.

- All piping systems shall be hydro tested at 1.5 times the design pressure.

- Auto air venting valves shall be provided at highest point of the pipe lines

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wrapping and coating as per IS-10221 (preferably wrapping coating shall be

coal tar based). Hume pipe protection shall be laid at road crossing area.

- Pipe supports comprising pipe shoes, saddles, base plate, clamps & structural

members like channels, angles etc. shall be provided.

Compressed Air Piping and Fittings :

- Compressed Air velocity shall be maintained less than 15 M/sec. IS - 1239

heavy class, ERW, G.I. pipe line shall be used in the compressed air line.

Compressed air pipeline network over ground laying shall be preferred with a

minimum slope of 10 mm in 1M ( 1:100) along flow and moisture trap with drain

provision at regular interval. Compressed air pipeline shall be preferably laid

along conveyor gallery or can be supported from building supporting structure.

In case of non-availability of same suitable supporting scheme to be developed

to suit site.

3.1.5. Valves

‐ Butterfly Valves shall be provided in water line of size 65 NB and above and

ball valve shall be provided for pipe size below 65 NB. However, ball valve shall

be provided in the pipe line (irrespective of sizes) when flow control is

required. Gear operated valves shall be provided for sizes more than 250 NB

‐Ball valves will be provided at pump inlets & at tank outlet.

‐ Non return valves shall be provided at pump outlet.

‐ Motorized Gate valves shall be provided at the Pump Outlets.

‐ Pressure relief valves shall be provided at pump outlet to divert water back to

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‐ The valves shall be designed, manufactured tested as per Indian/ International

standards as given in the specification.

‐ The body shall be designed so that wall thickness at any point is greater than

the minimum specified by various standards. Particular attention should be

given to the distribution of material to maintain stresses, within permissible limit

and to prevent stress concentration anywhere in the valve design.

‐ Castings shall be subjected to Non-destructive testing.

‐ The taper in Gate valves shall be so designed that the online torque required to

operate the valve is minimum and avoid jamming of wedge in the pipeline.

‐Globe valves shall be fitted with loose disc, which can revolve freely around the

stem to avoid falling on the seat at the point of closure on the sprinkler riser

pipe

‐ Precision machining shall be done to achieve perfect co-axiality of the valve

ends and seat rings as well as exact perpendicularity of the body bonnet

flanges.

‐Stem shall be of one piece design heat treated and ground finished to a high

accuracy to avoid scoring and to ensure smooth movement in stuffing box.

Gland bush is made out of cast iron and machined to a close tolerance to avoid

deformation under maximum load conditions and also to prevent shearing of

packing while gland is being tightened.

‐ Globe valves and check valves shall have an arrow pointing the direction of

flow. The hand wheel of gate valves shall have on it the word ‘OPEN‘ and an

arrow pointing in the direction to open Valve.

‐ All flanges valves shall be supplied with

• COMPANION FLANGES

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SERVICES DIVISION

• Manufacturer’s name or trade mark.

• Class number (PRESSURE RATING).

• Nominal size, in mm.

‐ An arrow indicating direction of flow in the case of safety valves, non-return

valves, globe valves etc.

‐ For Nameplate material shall be stainless steel or Nickel alloy and attached to

the Valves by pins of a similar material or by Welding. Nameplate shall inscribe

the following.

• Manufacturer’s name

• Valve Tag No.

• Nominal Dia. in mm

• Type of Valve

‐ In preparation for dispatch the valves shall be thoroughly cleaned. All liquids

used for any testing or cleaning shall be drained and items/ materials shall be

dispatched as dry. All external ferrous parts excepting stainless steel are to be

painted as per clause enumerated above, along with flanges etc. All items shall

be adequately protected against damage in transit and storage. All machined

surfaces including threading shall be coated with grease. Responsibility of any

damage shall rest with the supplier for free of cost replacement.

‐ Valve shall be shipped with the Gate closed and shall be delivered packed &

marked & tagged to facilitate transport, unloading and subsequent identification

at site.

‐ The Valves shall be shipped with lantern ring, if required and packing installed.

‐ The size of the castings and the item wise net and gross finished weight shall

be indicated in the dispatch document and packing list and other documents.

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Specification for Check valve:

Manufacturing Standard: IS: 5312 (Part- 1) – 1984(RA 90)

Type : Dual Plate check valve with two springs hinged on a central hinge rod

Body : SG Iron

Body liner : Nitrile rubber / EPDM

Disc : ASTM A351 Gr. CF8

Wafer design

Specification for Globe Valve:

Manufacturing Standard: IS: 778: 1984 (RA 1990)

Specification for Ball Valve:

Manufacturing Standard: IS: 7121:1986

Body : Cast steel

Body liner : Nitrile rubber / EPDM

Ball : ASTM A351 Gr. CF8

3 piece design

Socket welded type

Ball valves shall be with 200 mm length welded joint pipes from manufacturer

works

Specification for Spring Loaded Pressure Relief Valves:

Manufacturing Standard: API 526/ ASME Sec. I- Division VIII

Solenoid Valves:

Solenoid valves shall be provided for each system for remote start and stop as

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3.1.6.WATER STORAGE TANK

The water storage tank for Dry Fog Dust Suppression System shall be of RCC

construction. The capacity of the storage tank shall be 36.75 m³ having

tentative size 3mX3.5mX3.5m (h). Storage tank shall be provided with makeup

water connection with float valve and have provision of quick fill, vent and drain

connection. The tank shall be provided with low level and high level switch (float

type) and shall be interlocked with the pump sets. The tank will be provided by

the purchaser on receipt of assignment drawing/ details from the Seller.

3.1.7.SPRAY BAR ASSEMBLIES.

The spray bar assemblies shall be manufactured from stainless steel tubing

drilled and tapped for connection of nozzle adapters. A specially designed and

selected dual fluid atomizing nozzle shall be fitted into each of the adapters.

These nozzles are fitted with acoustic oscillators for atomizing the water into

droplets of micronic size by passing them through a field of high frequency sound

waters. The nozzles shall be of stainless steel while the adaptors shall be of

brass. Each spray bar shall be provided with mounting brackets and flexible

houses for connection to the air and water pipe line.

3.1.8.PRESSURE REGULATION UNITS (PRU).

The performance of “Dry Fog” type dust control system is critically related to the

size of water droplets. The nature and particle size of dust generated in the

material handling system changes with change in size and characteristic of the

material In practice the sizes of the dust particles have a very wide spectrum (1

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diaphragm type pressure regulator with pressure gauge and ball valve for

isolation of air and water line. The operator can adjust both the air and water

pressures independently to change the fog characteristics to obtain optimum dust

suppression results vis-à-vis the site requirements. The pressure regulators shall

be installed in a metallic enclosure with inspection door with rubber sealing

arrangement. Flexible hose shall be provided for connection of PRU the air and

water pipeline.

The number of pressure regulating units shall depends upon the

position/elevation of spray bars. Generally independent pressure regulating units

shall be provided when the elevation of spay bars exceeds 3 m. further the

number of nozzles operating from one PRU should not exceed 6 ~8.

3.1.9.FLOW ACTIVATION STATIONS (FAS).

The flow activation station shall consist of solenoid valves in air & water line,pressure switch in the airline, selector switch, and indication lamps. Isolation

ball valves shall be provided in the air & water line. All the equipment shall be

installed in a metallic enclosure with inspection door with rubber sealing

arrangement. Flexible hoses shall be provided with each FAS for connection to

air and water pipeline.

The "ON - OFF" control of the fogging system shall be through the flow

activation stations with facility for both manual and auto mode. A three position

selector switch shall be provided to select the mode of operation. The switch

when energized shall open the electric solenoid valves, which shall permit

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available in the line. This shall ensure that the system cannot operate without

sufficient air pressure to the nozzles and reduces the chance of un-atomized

water to pour into the dust source. Flow activation shall have indication for: -

- System ON

- System OFF due to lower air pressure

3.1.10. ENCLOSURES/HOOD/ SKIRD BOARD MODIFICATIONS

Suitable enclosures/ hoods and skirt board modification shall be carried out on

top of the equipment, belt conveyors sealing arrangement for fixing of spray bar

assemblies. The skirts/ hoods of the conveyor belts shall be modified as per the

requirement of the dust suppression systems.

At belt transfer point’s purchaser will provide skirt board of following size

Belt size

Height of skirt board

At Discharge zone

(Approx.)

Total Length of

skirt board

(Approx.)

Length of skirt at

Discharge zone

(Approx.)

1400 mm 800 mm 4m 2 m

2000 mm 800 mm 4m 2 m

Necessary skirt board modification, if required, shall be done by the successful

Seller.

Sealing of all material application transfer hoods/skirt shall be provided by

successful Seller to suit site.

3.2. ELECTRICS

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Seller may base his proposals on IEC recommendations or other reputed

national or international standards subject to the approval of the purchaser.

All the equipments supplied and all work done including system design andengineering shall also company with the statutory requirements of the

Government of India, the State Government and with the Indian Electricity

Rules.

LIST OF INDIAN STANDARDS

MCC/ PANELS

IS: 5 – 2004 Shade of Paint and Enamels

IS: 1248 – 1993/ 2003 Direct acting Electrical Indicating Instruments

IS: 2075 – 2000Ready Mixed Paints – red oxide, zinc chrome

Printing – Specifications

IS: 2551- 1982 Danger Notice Plates

IS: 2705 – 1992 Specification of current transformers

IS: 3043 – 1987 Code of practice for earthing

IS: 3156 – 1992 Voltage Transformers

IS: 5082 – 1998

Specification for wrought aluminum and

aluminum alloys bars, rode, tube and sections

for electrical purposes.

IS: 5578 – 1984Marking and arrangement for switchgear busbars,

main connection and auxiliary wiring.

IS: 8623 – 1993Specification for factory built assemblies forswitchgear and control gear for voltages up to and

including 1000V A.C and 1200V D.C

IS: 8828 – 1996 Miniature Circuit Breakers

IS : 11353 – 1985 Marking and identification of conductors and terminals

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air break switches and composite unit of air

break switches and fuses for voltage up to

1000V

CABLES

IS: 694 – 1990Insulated cables for working voltage up to

1100V

IS: 1554 – 1988PVC insulated heavy duty electric cables for

working voltages up to and including 1100 volts

IS: 5831 – 1984 PVC insulation and sheath of electric cables.

IS: 8130 – 1984Conductors for insulated electrical cables and

flexible cords.

MOTORS

IS: 325 – 1996 Three phase induction Motors.

IS: 900 – 1992Code of practice for insulation and maintenance

of induction motors

IS: 1231 – 1974Dimensions of three phase foot mounted

induction motors.

IS: 2223 – 1983Dimensions of flange mounted AC induction

motors

IS: 2253 – 1974

Designation for types of construction and

mounting arrangement of rotating electrical

machines

IS: 4029 – 1967 Guide for testing three phase induction motors

IS: 4772 – 1983 Rotating electrical machines

IS: 12063 – 1987Classification of degrees of protection provided

by enclosures of electrical equipment

IS: 12075 – 1987 Vibration levels

In the event, the requirements of this specification exceed the requirement

stipulated in the corresponding standards, regulation, safety code, the

ifi ti h ll

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3.2.2. CLIMATIC CONDITION

‐ The equipment offered shall be suitable for smooth, efficient and trouble free

service/ performance under port conditions with tropical humid climate

prevailing at plant site and ambient temperature of 50°C. The equipment/

installation shall be duly protected against heavy corrosion as encountered in

such locations. Cathodic protection may be provided as required.

‐ Solenoid Valves in J unction houses and yard area

‐ Site description is given elsewhere in the TS.

‐ Standard voltage levels & variations

3.2.3. EQUIPMENT SPECIFICATION:

Construction features

• Motor frame size and rating as per IS: 1231-1974, IS: 2223-1983 and IS: 2254-

1985.

• Up to frame sizes 315 motors with cast iron body is acceptable. Above framesize 315 motors shall have cast steel or fabricated steel body.

• Degree of protection for motor, bearings and the terminal box shall be IPW 55

for all motors. Degree of protection for actuators motors shall be IP-67.

• The motor shaft ends shall be cylindrical.

• The bearing shall be suitable for running the motor in either direction.

• Two numbers earthing studs shall be provided on the motor body.

• Actuator shall have built in thermal protection and space heater.

• Motor shall be provided with canopy.

Permissible voltage variations

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control effectiveness maintained

Combined frequency & voltagevariation

10%

• The three phase symmetrical short-circuit ratings shall be as given below ;-

SI. No. Voltage Data

1 415V 50kA for 1 second

3.2.4. LV MOTOR

a. All LV motors shall be suitable for 415V, 3 Phase, 3-wire, 50 Hz power

supply. Motor of rating up to and including 160 kW shall be supplied from LT

switchgear / MCCs through SFU/MCCB and contactors or ACBs.

b. Motor of rating 200kW & above and up to 1500kW shall be supplied from

Coal Handling System 3.3kV switchgear.c. All motors shall be squirrel cage type except for cranes. The motor winding

shall be of copper. Motor shall be suitable for voltage variation of ±10%,

frequency variation of ±5% and combined voltage and frequency variation of

10%.

d. The drive motor rating shall have at least 15% margin over the duty point

input of 10% over the maximum power requirement of driven equipment.Motors shall be capable of starting and accelerating the load with the

applicable method of starting without exceeding acceptable winding

temperatures when supply voltage is 85% for LV motors.

e Motors shall be capable of developing the rated full load torque even if the

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and the incoming supply voltage equal to 150% of the rated voltage during

fast changeover of buses.

g. Locked rotor current of the LV motor shall not exceed 600% of full load

current inclusive of 20% tolerance.

h. The locked rotor withstand time under hot condition at 110% rated voltage

shall be more than the starting time at minimum permissible voltage specified

above by at least three seconds or 15% of the accelerating time whichever is

greater. Provision of speed switch shall be avoided to the extent possible.

i. The degree of protection shall be IP-55 for LT motors. The terminal boxes

shall be provided with at least IP-55 degree of protection. For single core

cable termination, gland plates shall be of non-magnetic material. All motors

located in hazardous area shall have flame proof design.

j. The maximum double amplitude vibrations for motors upto 1500 rpm shall be

25 microns and 15 microns up to 3000 rpm. For 415V motors, maximum

double amplitude vibrations up to 1500 rpm shall be 40 microns and 15

microns up to 3000 rpm.

k. Maximum noise level measured at a distance of 1.0 meter from the outer

surface of the motor shall not exceed 85 db (A).

l. Terminal boxes shall have fault withstand capacity equal to at least rated

short circuit level of the system voltage for 0.25 sec. The terminal boxes shall

be reversible to suit cable entry from bottom or top. Terminal boxes shall be

suitable for termination of FRLS, XLPE armored cables.

m. Separate terminal box to be provided for space heater. All terminal boxes

shall be provided with two earthing studs for termination of protective earth

conductor. Double compression type brass cable glands and crimping type

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o. LT motors shall have insulation class ‘F’ with temperature rise limited to class

‘B’ i.e. 70ºC over the ambient of 50ºC.

p. Space heaters shall be provided for all LT motors of rating above 30 kW.

Heaters to be automatically ‘OFF’ when the motor is switched ‘ON’

q. All motors for outdoor duty shall have detachable metal/FRP/Polycarbonate

canopy.

r. Each motor shall have two (2) Earthing terminals.

s. All motors above 37KW shall have minimum 92% efficiency at full load

conditions.

t. All motors shall be suitable for DOL starting.

TESTING of LV Motors

a. Tests on all types of motors shall be conducted as per relevant standard.

b. For 415V motors and DC motors, if type test certificates are available for the

same rating of the motors offered, the same shall be furnished, else they shall

be conducted. However, all routine and acceptance tests shall be conducted

on all 415V motors as per relevant standards.

c. All routine and acceptance tests shall be performed in accordance with the

codes and standards listed in Clause . Manufacturer shall notify purchaser at

least fifteen days before a witness test is to be performed.

d. In addition to the routine and type tests, following tests shall be carried out on

all the motors as part of the routine tests in the presence of purchaser’s

representative.:-

e. Tan delta and charging current measurement on each phase winding of

motor.

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h. Dielectric tests to establish the insulation withstand level of motors shall be

performed on a sample coil (identical to those to be used in the motor quoted

for) for each type of motor. These tested sample coils shall not be used in the

motors to be supplied.

i. Vendor shall furnish test certificates in respect of following type tests carried

out on identical motors for purchaser’s approval.

j. Test to prove degree of protection for enclosure (both digits).

Actuator

General Technical Requirement

a. Actuator shall be weatherproof type with enclosure conforming to IP-67 degree of

protection. It should be suitable for out-door use without the need for canopy. If

the IP-67 degree of protection is required due to occasional submergence, the

Owner / Project Manager will specify the depth and duration of such

submergence.

b. The actuator shall be suitable for installation in any position without lubrication

leakage or other operational difficulty.

c. The main gearbox of the actuator shall be special grease filled.

d. Each actuator should have a hand wheel for emergency manual operation.

Clockwise operation of hand wheel shall cause clockwise movement of the output

drive. The hand wheel shall be clearly marked with an arrow and the word

CLOSE.

e. The hand wheel shall automatically disengage when the power to the motor is

restored i.e. power drive shall have a preference over manual drive.

f. The manual effort should not exceed 400 N (push / pull). A top bevel gear set

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switch drive assembly, mechanical position indicator assembly etc. individually

interchangeable / replaceable throughout the models selected.

i. The actuator shall be painted with corrosion resistant epoxy resin paint. Paint

shade shall be Grey (No.631 as per IS:5).

j. In order to prevent condensation, a space heater shall be provided in the switch

compartment, suitable for continuous operation.

k. Actuator mounting dimensions shall be according to ISO-5210.

l. For rising stem applications, the design must allow the removal of actuator from

the output drive without disturbing the function of valve.

Electric Drive for Actuator (Motor)

a. All motors shall be specifically designed for valve actuator operation, which is

characterized by high starting torque, low stall torque & low inertia. All motors

shall be high starting torque type to facilitate ‘unseating’ of valve.

b. Motor shall be suitable for power supply of 415 V, 3 ph, 50 Hz, AC.

c. Motor shall be squirrel cage induction type and shall generally conform to IS-325.d. Motor shall have minimum class 'F' insulation with temperature rise restricted to

class 'B'.

e. Motor shall be of Totally Enclosed Fan Cooled (TEFC) type with IP-67 protection

class after mounting on actuator.

f. Motor shall have three thermostats connected in series, one in each phase of

stator winding, for protection against overheating.g. Motor shall be suitable for operation under voltage variation of +10%, frequency

variation of +5% and combined voltage & frequency variation of 10% absolute.

h. Motor shall be suitable for direct on-line (DOL) starting and starter shall be

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k. It shall be possible to change the output rpm of the actuator, if required, at the

site at a later date, without hampering the mounting arrangement and loss of any

lubricant.

Other Requirements of Actuator

a. Common potential free contact shall be available to annunciate the following

faults to the remote control station :

− Thermo switch tripped.

− Thermal overload relay tripped.

− Torque and limit switch contacts.

b. The following individual relay / potential free contacts shall be provided for the

remote annunciation :

− Actuator running in OPEN direction.

− Actuator running in CLOSE direction.

−Torque switch OPEN tripped.

− Torque switch CLOSE tripped.

c. Thermal overload relay shall be provided to trip the actuator in case of overload.

d. The DC and AC actuator shall be provided with accessories viz., Torque limit

switch, end of travel switch, adjustable limit switch, hand wheel motor,

thermostat, etc. Complete actuator shall be tested at factory as per IS 9334. All

actuators should have minimum 2 limit switches for each position, and should

have position transmitters wherever required.

Limit and Torque Switches

1 35 MTPA COKE OVEN COMPLEX

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supplied. If called for in the data sheet, two additional limit switches shall be

provided for intermediate positions.

b. Torque switch dial shall be graduated directly in “kg-m” for easy setting to desired

value within the range specified. Separate dials shall be provided for CLOSE and

OPEN torque switches.

c. The rating of both torque and limit switches shall be 250V, 5Amps, AC

d. The switches shall individually be enclosed to a minimum of IP-66 protection

class.

e. Torque and limit switches shall have only stainless steel flaps for better protection

against environmental condition. Limit switches shall be operated by gear driven

cams, which are mechanically linked to the driving devices. The counter gear

used for counting and tripping the limit switches shall be of metallic construction

like brass etc. No plastic gearing shall be allowed.

f. To guarantee proper function under high ambient temperatures, torque and limit

switch sensing shall be of mechanical type.

g. If specified in data sheet, two additional limit switches of 2NO +2NC contact,each adjustable at any intermediate position, shall be provided in the actuator.

Solenoids

The solenoids shall be copper wound and class H insulated with temperature

rise limited to that for Class F. The Solenoid shall be designed for continuous

duty and shall be plug-in type. LED based indication lamp shall be providedwith the solenoids.

Proximity Switches

Th P i it it h h ll b it bl f d t ti th t l ith t t t


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temperature, dust etc.) conditions. The proximity switches shall be universal

type, 2-wire system suitable for use with 220V DC or 240V AC control supply.

The switch shall be provided with LED Indications for indication of operating

status. The switches shall be provided with enclosure class of IP-67.

Control Panel

a. The Control panel shall be made up of CRCA sheet (2.0 mm thick), floor/ wall/

structural mounted type, with hinged door. The enclosure class shall be IP-66

with canopy for outdoor duty. Removable undrilled cable gland plate 3mm thick

shall be provided on bottom. Internal wiring shall be carried out with 1.5mm and 2

copper conductors

b. Each control panel shall have house starters for pump motors, control

transformer for control supply, 220V DC transformer rectifier for solenoid power

supply and other required power, control, protection, interlocking equipment,

alarm & annunciation system, start/stop push buttons, selector switches,indicating lamps etc.

c. Purchaser will provide one number 415V, 50HZ, 3 phase power supply feeder at

the incoming terminal of MCCB/SDFU in the control panel. The control panel

shall house all necessary MCCB/MPCBs, control transformer of adequate rating,

220V DC power for all solenoids , 240V power supply for field instruments and

power supply units, sequence timer, relays, terminals, indicating lamps, push

buttons, selector switches etc. required for control of the unit . For zero speed

switches, controllers shall be mounted inside the panel. Potential free contacts

shall be provided for input to PLC.


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solenoid valves etc. shall be in the scope of the Seller. The Seller shall furnish

terminal diagram of the cables to be connected in the control panel.

3.3. LIST OF PREFERRED MAKES

MECHANICAL

ITEM PREFERRED MAKE

Centrifugal pumps Kirloskar/ Beacon/ KSB / M & P / SAM / KBL

CompressorKirloskar/ Ingersollarand/ Atlas-Copco/ ElgiPneumatic/ Bodge

Motor Siemens/ ABB/Crompton Greaves/ KirloskarElectric companyGate valve, Globe valve, Ball valve& Non Return Valve

Audco / Inter Valve / Fouress Engg. / Leader /Levcon / KBL / BSK

Solenoid Valve Avcon / Rotex

Pipe & Fittings J indal / Tata Tube / Maharashtra Seam Less Tubes / Indian seamless tubes / Bansal / Surya

Pressure gauge H. Guru / G E Gauge / A N Instrument

Duplex filter Super flo / Filtration Engg. / Fouress Engg

ELECTRICAL

L.T.MOTORS SIEMENS / CROMTON / KIRLOSKAR / ABB

LIMIT SWITCHESBCH / JAYSHREE / INDUSTRIES SYNDICATE / EPC(KAKKU) / J AIBALAJ I / ELECTROMAG.

Pressure Indicators General Instruments/ Wika/ Mass

Level Switch Magnetroll/ Dresser

Pressure Switch Switzer/ Ashcroft

J unction Box Baliga/ Stahl/ Hansel


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MPCB Siemens / GE Power / SCHNEIDER

Power ContactorAuxiliary Contactor, O/LRelay

Siemens / L&T / GE Power / SCHNEIDER(CGL) / ABB /BCH

MCB Havells / Indo Kopp / Standard / GEPC / S&S Power

Push ButtonsSiemens / L&T / GE Power / SCHNEIDER(CGL) / ABB / Telemechanique / BCH

Selector Switch, ControlSwitches

Siemens / L&T / GE Power / Kaycee / Salzer

LED Indication Lamp Binary Electricals / Siemens / L&T / GEPC / BCH

CT, PT AE / Kappa

Ammeter, Voltmeter AE / IMP / MECO / Alstom

HRC fuse Siemens / GE PC / L&T

Terminal Blocks Elmex / Phoenix / Connect well / Essen

Cables CCI / Universal / Asian / RPG / NICCO

Motorised Actuators with

in-built control panel

Beacon Rotark, Auma

Note: For make of any item, not appearing in the above list specific approval

shall be taken by the Seller from Consultant / Owner.


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3.4. APPLICATION POINTS

The tentative application points have been indicated in the following table for

the dust suppression systems for junction houses. This list is only for the

guidance to the Seller. The Seller shall calculate the system capacities on their

own and shall provide the systems considering the latest norms and system

requirement.

Spray Chart DFDSS- Air

Atomizing Nozzles

L O C A T I O

N

S p r a y

L o c a

t i o n

C a p a c

i t y

i n

t o n s

/ h r

C o n v e y o

r

S p e e

d i n

B e

l t W i d t h

# O F H e a d

e r

# O F

N O Z Z L E

# O F

N O Z Z L E S

O P E R A T I N G

W A T E R L P H

( W / A )

A I R I N L P

M

( W / A )

F A S

P R U

U B S / S i g n

a l

NJH-4

Discharge of Conv. CC-5 960 2.2 1400 1 1

Receipt of Conv. CC-7 960 2.2 1400 1 1


NJH-5




NJH-6



Receipt of Conv. COC-1 960 2.2 1400 1 1

NJH-7Discharge of Conv. CC-8 960 2.2 1400 1 1


Discharge of Conv. COC-1 960 2.2 1400 1 1

Discharge of Conv. RC-1 960 1.5 1600 1 1


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CRJ H-2

Discharge of Conv. COC-2 960 2.2 1400 1 1

Receipt of Conv. BWF-1 960 0.5 2000 1 1

Discharge of Conv. BWF-1 960 0.5 2000 1 1


CRJ H-3Discharge of Conv. COC-3 960 2.2 1400 1 1


J H-9B


Receipt of Conv. J 22C1 960 2.2 1400 1 1

Receipt of Conv. J 22C2 960 2.2 1400 1 1

Receipt of Conv. CC-10A 960 2.2 1400 1 1

J H-9A

Discharge of Conv. J 9AC1275-

Coke1.6 1200 1 1

Receipt of Conv. J 22C1

900-

Coal

525-

Coke

2.2 1400 1 1


900-Coal

525-

Coke

2.2 1400 1 1

J H-9C

Discharge of Conv. J 9AC1275-

Coke1.6 1200 1 1

Receipt of Conv. CC-15900-

Coal2.2 1400 1 1

J H-9

Discharge of Conv. J9C1275-

Coke

1.6 1200 1 1


900-

Coal

525-

Coke

2.2 1400 1 1

900-

l


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SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

J H-22

Discharge of Conv. J 22C1

900-

Coal

525-

Coke

2.2 1400 1 1

Discharge of Conv. J 22C2

900-Coal

525-

Coke

2.2 1400 1 1

Receipt of Conv. GJ -3

960-

Coal

525-

Coke

2.2 1400 1 1

Total

Tonnage

Water

Addition

Moisture

AdditionCompressor

Pump

Capacity20%

M³/HR

Air Receiver

3.5. BATTERY LIMIT

Make up water for dust suppression system shall be provided by purchaser up

to tank inlet. Seller shall do the piping work from battery limit with valves and

fittings.

4.0 INSPECTION & TESTING

The successful Seller shall conduct all test and inspections (including stage

inspection as necessary) required to ensure that the equipment offered shall

conform to the requirement of this specification. The particulars of the proposed


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SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

The tests to be conducted at shop for various sub assemblies / assemblies of

equipment shall include but not limited to the following.

− Material test

− Testing during manufacture / fabrication

− Dimensional checking

− Manufacturer’s shop test / running test at shop

− Balancing (static and dynamic)

− Hydro testing

− No load / full load running test for motors

− Performance test

Any other test as required to prove the functional requirement to various parts

of equipment / system.

The inspection shall be carried out as per approved drawings and code. These

shall be rejected in case of any major deviation from the specification orapproved drawings and codes. The equipment shall be dispatched to site only

after getting dispatching instruction from purchaser / consultant.

Inspection and testing at manufacturer’s work / premises shall be as per

General Technical Specification/approved QAP.

5.0 HSE REQUIREMENT

Seller shall comply with the entire applicable statutory requirement as minimum

national standards (plant local government’s standard).

In additional to the above Seller shall comply with the Client’s internal Standards /


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SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

6.0 DELIVERY

The delivery of the Equipment/system under this specification is for the

Requirement of ESSAR STEEL HAZIRA LIMITED, 1.35 MTPA COKE OVEN

COMPLEX, HAZIRA.

a. Delivery of Equipment/System shall be delivered in Site at Hazira, surat

Hazira road, Surat District, Gujarat as per the period mentioned P.O & as per

the Client Requirement.

b. Delivery of the equipment & commissioning of the systems shall be at the

earliest and time is essence of this tender. The Seller shall quote his best

delivery period (Max. 4 Months from Purchase Order) and furnish detaileddelivery schedule along with the offer.

c. Ship Equipment shall be completely factory assembled, except when the

physical size, arrangement, or configuration of the material, or shipping

limitations, makes the shipment of completely assembled material

impracticable, in which case, assemble the material and ship as stated in the

contractor’s proposal.

d. Fan with motor shall be clean and free from moisture, dirt and loose foreignmaterials of any kind.

e. All openings shall be covered or plugged (with Plastic Cap) to prevent dirt and

moisture from entering the item interior as per Standards / Specified.

f. Inscription of the Equipment (Labels) shall be in English.

g. Storage and Protection of delivered material shall be in accordance with

manufacture’s recommendations.

h. Unless requested by Purchaser, supplier shall dispatch material with all its

attachments, documents etc as a single lot with logical identification of

packing.

i. All Equipment/System shall be packed properly for the prevention of damage

during transmit and deterioration during storage.


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SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

7.0 PAINTING

7.1. The following specification shall be applicable for all Equipment/System covered

under this Specification unless separate painting specification is elaborated in the

respective attachments.

7.2. This specification covers the facilities and quality requirement for surface

preparation and painting of structures, equipment, piping, etc.

7.3. The term "painting" referred herein covers rust preventive, preventive and

decorative coating along with surface protection.

7.4. All machined mating surfaces (e.g. flanges) shall be properly cleaned, greased and

protected before dispatch.

7.5. General compatibility between primer and finishing paints shall be certified by the

paint manufacturer supplying the paints.

7.6. Areas which become inaccessible after assembly shall be painted before assembly

(after painting clearance has been given by the inspecting authority) after requisite

surface cleaning as specified.

7.7. The machine finished surfaces shall be coated with white lead and covered before

shipment or before being put out into the open air.

7.8. The complete paint system for any item includes the following activities

a. Proper surface preparation

b. Application of primer coats

c. Application of intermediate coats

d. Application of finished coats

e. All Sheet metal work shall undergo a process of

f. Degreasing.

g Pickling in Acid


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SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

SURFACE PREPARATION

a. Remove all rust and scale by grit / sand blasting to minimum standard of SA 2

1/2 according to ISO 8501-1, 1988.

b. Remove all dust and loose particles by vacuum cleaning or by jetting with dry

compressed air.

8.0 WORKMANSHIP & PERFORMANCES GUARANTEE

8.1. The Material used shall be new and best of its kind available and shall confirm to

relevant latest Indian & international standards.

8.2. The warrantee shall cover faulty design / material / workmanship. All rectifications

or replacement under the warrantee shall be done by Seller free of cost.

8.3. The Seller should study the specification and satisfy himself regarding the

workability of the proposed Equipment/System and shall take full responsibility for

the design, manufacturing, quality of the material, workmanship, etc. of the entire

system including utility, electrics, instrumentation.

8.4. The approval of drawings and/or inspection by buyer or their authorized

representatives does not absolve or relieve the Seller from any of his obligations.

8.5. Demonstration of performances guarantee is the most important clause binding

the Seller.

8.6. The Seller shall guarantee the satisfactory performance of the equipment /

system supplied by him for a period of 1 year after commissioning of equipment.8.7. The purchaser shall stipulate the performance of all equipment as a whole at

rated Capacities. The equipment shall put on 24hrs non-stop operation as the

case may be.


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SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

Note: The Seller shall indicate the % of weight-age against every parameter for

the performance guarantee for the purpose of LD clauses.

9.0 SPECIAL INSTRUCTIONS TO SELLER

9.1. The Seller shall fabricate the Equipment/System considering the site conditions

and operating conditions existing in the project.

9.2. Metric system shall be followed and English shall be the language of all

communications.

9.3. In case, the Equipment/System fabrication item mentioned in this Specificationuse imported Equipment/System, Component & / or spares for installation of the

Equipment/System, the Seller should indicate the foreign exchange component

along with the expenditure involved.

9.4. The break-up of Equipment/System fabrication unit shall be indicated in the

following two broad categories,

a. Those to be manufactured in India.b. Those to be procured from the foreign sources.

9.5. In both cases where the Equipment/System is to be procured from India or

abroad, the successful Seller shall be full responsibility for design, generation of

all data’s, and design drawings required by him for manufacture/fabrication. The

Seller shall furnish a deviation list of supply and services along with the offer.

9.6. The Seller shall separately quote for all the brought out items other than hismanufactures.

9.7. All brought out items shall be as per the preferred made of the ESHL / EESD.

ESSAR STEEL


7/28/2019 Annexure IV - 205847




SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

10.0 DOCUMENTS TO BE SUPPLIED

The following information/documents to be submitted by the Seller along with

offer,

1Engineering Schedule with a complete numerical listing of alldrawings and data. Identified by title which the seller expects to

provide in site order in accordance with this document.

Along with

Proposal

2 Manufacturing and Delivery scheduleAlong with

Proposal

3 Complete Technical Data requirement Sheet(s) from requisitionAlong with

Proposal

4Equipment Description: Performances Characteristics, features of equipment, Material and auxiliaries furnished by seller and a definition

of auxiliary equipment of facilities to be furnished by Buyer. Catalog

information acceptable for bids.

Along with

Proposal

5 Representative performances Data: Results of tests run on similar

equipment under similar condition

Along with

Proposal

6 Noise: Data as required in RequisitionAlong with

Proposal

7 Utility Requirement: Types, Quantities, Characteristics.Along with

Proposal

8

Loadings: Dead and live load at support and their locations. Dynamic

forces, frequencies and rotating weights on support. Lateral support

requirements. Weight of separable components. Allowable nozzle

loads.

Along with

Proposal

9

Dimension Drawings & General Arrangement drawings: Assemblies,

Details & Sections. Location Connection of Supports for process and

utility tie-ins. Outline Dimensions and clearances required for

assembly, operation and maintenances.

Along with

Proposal

10 Preliminary Process Flow Diagrams & Preliminary PID, P&ID.Along with

P l

ESSAR STEEL


7/28/2019 Annexure IV - 205847




SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

13Connection & Intern Connection Diagram: Showing Connection

Points, Wiring and piping furnished or required between component

parts equipment and/or between equipment and outside facilities.

For Approval

after Order

14

Motor Data: Actual Dimension diagram, manufacturing HP, RPM

Voltages, phase, frequency, C rise, insulation, class services factor,frame, NEMA Design, full load current, locked motor current, BHP,

load inertia, load & speed torque curves, loading cycle, starting

torque.

For Approval

after Order

15 Fabrication drawings: drawings for use in shop or field fabrication.

16

Erection Drawings: Erection plan for field assembly of fabrication

components including all piece marks. For Record

17

Insulation, operation, maintenances & lubrication instruction:

Instruction for Insulation, pre-operation, operation, maintenances,

repairs, lubrication, calibration, including a list of all special tools

required.

For Record

18Parts list: Provide part names, original manufacturer’s identification

numbers and material description. Include seller’s recommendation

for spare parts or one year’s operations with prices

For Record

19 Field protection: required to be provided by buyer for field storage

prior to installation, and after installation, but prior to start-up

Along with

Shipping

20 Material safety data sheet For Record

21 Software in hard copy For Record

22 Software in electronic media For Record

23 Software documentation in hard copy For Record

24 Software documentation on electronic media For Record

25 Instrumentation flow calibration curves For Record

ESSAR STEEL


7/28/2019 Annexure IV - 205847




SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

30 Complete Equipment List with Individual Equipment Weights For Record

31 Painting Specification List for Complete Supply Equipments (Covering

requirements for Inside & outside)For Record

QUALITY RECORDS

29 Material certificates: Seller’s affidavit defining by chemical analysis,

physical tests or other means, the material of constructionFor Record

30 Vessel data report

31 Vessel information: weld procedures For Record

32 Vessel information: design calculation For Record

33 Vessel information: nameplate rubbings For Record

34 Certified performances data: results of tests run on requirement

furnished

For Record

35 Vendor weld procedures with welder qualification records For Record

36 Vendor testing procedures (NDE, Hydro test, Pneumatic test, etc) For Record

37 Site insulation Quality Control plan For Record

38 Inspection and/or Test plan For Record39 Test Data and Inspection report For Record

40 Quality Control Procedures For Record

41 Calibration reports (vendor measuring / test equipment) For Record

42 Certification of compliances For Record

43 Static/dynamic Balancing certificates For Record

44 Material hardness test and report For Record45 Detailed Calculations for all Systems For Record

SUPPLEMENTARY DATA REQUIREMENT

45 Signed purchase order acknowledgement For Record

ESSAR STEEL


7/28/2019 Annexure IV - 205847




SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

ANNEXURE I

Temperatures : Annual basisMean Yearly Temperature 26.6°C

Maximum Absolute Temperature 45.6°C

Mean Yearly Maximum Daily Temperature

42.3°C

Mean Yearly Minimum Daily Temperature

10.9°C

Wet bulb temperature 26°C

Average humidity in hottest months 87%

Average humidity in Coldest months 33%

Annual average rainfall Annual average rainfall is about 1203.5 mm (most of which occurs during the monsoon season from June toAugust)

Maximum rainfall in 24 hours 459mm

Prevailing direction of wind in summer South west to North east

Prevailing direction of wind in winter North east to South westAverage Wind speed 12.2km/h

Basic Wind Speed (Vz) as per IS 875-1987 (Part-III) at 10m height

44 m/sec

Seismic Zone Zone – III, Importance Factor as per Clause 8.3.2 of IS1893-2002 Part 1, General provisions & Buildings.“Criteria for earthquake resistant design of structures”and peak ground acceleration (PGA) is 0.16g.

Present use of land Industrial Area

Topographical features of the site Industrial Area

Source of Water Tapi River

SITE CONDITIONS

The meteorological details of the site are indicated below.

ESSAR STEEL


7/28/2019 Annexure IV - 205847




SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

ANNEXURE II

FORMAT FOR DEVIATIONS FROM TENDER DOCUMENT

Sl. No. Clause No. Seller’s Deviations Reason for Deviation

The Seller hereby certifies that the above mentioned are the only deviations

from the tender documents.

SEAL / STAMP

Signature :

Name :

Designation :

ESSAR STEEL


7/28/2019 Annexure IV - 205847


HAZIRA LIMITED TECHNICAL SPECIFICATION

FOR DRY FOG DUST SUPPRESSION

SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

ANNEXURE III

QUESTIONNAIRE TO BE FILLED IN AND SUBMITTED BY THE SELLER

GENERAL

01 Seller’s name and address *

02 Quotation Number & Date *

03

Total estimated Transporting Weight for Item Offered by

Seller (In Tons) *

04 Weight and Dimension of the heaviest Single Package *

05 Special Storage Requirement *

06Previous Experience. List of Similar Plant/Equipments

Supplied*

07 Available Manufacturing Facility *

08 Available Spare Capacity *

09 Seller’s representative in India, if any *

10 Turn Over of Seller *

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ESSAR STEEL


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SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

ANNEXURE V

BILL OF QUANTITY

SR.

NO DESCRIPTION

BRIEF

DUTYSPEC. QTY.

UNIT

PRICE(INR)

TOTAL

PRICE(INR)

Dry Fog System

01 Air Atomizing Hollow cone SprayNozzle including spray header

02 Pump with motor

03Pipes, Flexible hoses & Fittings (Air

& Water)

04 Gate Valve (Air & Water)

05 Float Valve (Water)

06 Ball Valve (Air & Water)

07 Non return valve (Air & Water)

08Pressure & Temperature gauge (Air

& Water)

09 Pressure Transmitter (Air & Water)

10 Motorized Gate Valve (Water)

11 Level Switch (Water)

12 Globe Valve (Water)

13 Pressure relief valve (Water)

14 Duplex Strainer (Water)

15 Safety Valve (Air)

16 Compressor with Drive

17 Ai R i ith A i



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SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

21Cable tray, supports & other

accessories

22PRU including pressure regulator

and indicator (Air and Water)

23

FAS including solenoid and ball

valve, pressure transmitter (Air

and water)

24 Conveyor Under belt Switch

Plant Cleaning System

25 Ball Valve (Approx.)26 Flexible Hose (Approx.)

Notes:

∗ Qty. & Price Break-up of each set to be furnished.



7/28/2019 Annexure IV - 205847




SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

Annexure VI

Quality Assurance Plan (QAP)

a) Seller shall furnish Quality Assurance Plan (QAP) for respective material

after completion of detailed engineering and finalization of billing scheduleand prior to start of manufacturing.

b) QAP shall be prepared and furnished by Buyer for all components. Formatis enclosed with this Tender.

c) Inspection and test requirements shall be decided with due considerationof factors like safety, duty cycle, operating conditions, material life,environment conditions, place of installation and statutory regulations, as

applicable for a particular material.

d) QAP shall clearly indicate the followings through use of codes in theappropriate columns:

I. Range of inspection & tests to be carried out by manufacturer andcross checked during manufacturing of Equipment from rawmaterials to finishing stage.

II. Suggestive check /hold points for Buyer inspection and witnessingof tests during manufacturing and final product inspection.

III. Details of test certificates, internal inspection reports and calibrationcertificates to be furnished by Seller to Buyer.

IV. Inspection documents to be furnished by Seller to Buyer forreference during inspection along with acceptable norms as percodes / regulations.

Test Certifi cates and DocumentsFor each of the items being manufactured, following test certificates anddocuments in requisite copies including original shall be submitted to inspectionagency. All test certificates must be endorsed by the manufactures contractorwith linkage to project, purchase order and acceptance criteria.



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SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

Annexure VII

Description Remarks

Pumps

Make and model no. Vendor to Specify

Type of pumps. Vendor to Specify

Capacity in m³/hr. Vendor to Specify

Total head in mWC. Vendor to Specify

Quantity Vendor to Specify

Material of construction, Vendor to Specify

Shaft Vendor to Specify

Impeller Vendor to Specify

Casing Vendor to Specify

Pump speed (rpm). Vendor to Specify

Shaft power. Vendor to Specify

Drive details. Vendor to Specify

Motor make Vendor to Specify

Motor KW Vendor to Specify

Insulation class Vendor to Specify

Frame size Vendor to SpecifyBearing type & make. Vendor to Specify

Type of coupling. Vendor to Specify

Vibration level Vendor to Specify



7/28/2019 Annexure IV - 205847




SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

Pipes

Material Vendor to Specify

Standard Vendor to SpecifyClass Vendor to Specify

Thickness of pipe material Vendor to Specify

Tolerance on O.D & thickness Vendor to Specify

Pipe size, length and weight Vendor to Specify

Make Vendor to Specify

Maximum recommended operating temperature Vendor to Specify

Maximum recommended operating pressure Vendor to Specify

Test to be conducted Vendor to Specify

Type of protective coating Vendor to Specify

Measures for protecting ends Vendor to Specify

Marking Vendor to Specify

Catalogues Vendor to Specify

Special features, if any Vendor to Specify

Pipe Fittings

Type of fittings Vendor to Specify

Size (O.D x Thickness) Vendor to Specify

Standard Vendor to Specify

Lengths Vendor to Specify



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SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

Measures for protecting ends Vendor to Specify

Marking Vendor to Specify

Catalogues Vendor to Specify

Special features, if any Vendor to SpecifyWeight of fittings, kg Vendor to Specify

Valves (Gate, Globe, Check, Ball, Float, Safety, Pressurerelief)

Type Vendor to Specify

Body / Bonnet / Cover Vendor to Specify

Spindle Vendor to Specify

Disk Vendor to SpecifyBody seat ring & Disk seat ring Vendor to Specify

End connection Vendor to Specify

Pressure rating Vendor to Specify

Flange facing Vendor to Specify

Manufacturing std. Vendor to Specify

Bolts & Nuts Vendor to SpecifyGaskets Vendor to Specify

Hand wheel Vendor to Specify

Packing Vendor to Specify

Companion Flanges Vendor to Specify

Hydrostatic testing Vendor to Specify

Test certificates Vendor to Specify

Any other details specific to the type of valves Vendor to Specify

Solenoid Valves

Make and Model Vendor to Specify



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SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

Under Belt Switch



Quantity Vendor to SpecifyPressure Switch




Pressure Gauges




Control Panel




Tanks

Capacity Vendor to Specify

Usage: Water Vendor to Specify

Material of Construction Vendor to Specify

Level indicator Vendor to Specify

Dimension Vendor to Specify


Weight Vendor to Specify

Nozzles Vendor to Specify




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SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

Motor data sheet

Make and Type Vendor to Specify

Rated kW at 34.8˚C Vendor to Specify

Rated voltage Vendor to Specify

Frame size Vendor to Specify

Class of insulation Vendor to Specify

Temperature rise Vendor to Specify

Rated speed Vendor to Specify

Rated current Vendor to Specify

Starting current Vendor to Specify

Locked rotor torque Vendor to Specify

Pull up torque Vendor to Specify

Break down torque Vendor to Specify

Max permissible GD2 of load Vendor to Specify

Type of construction Vendor to Specify

Degree of protection of enclosure Vendor to Specify

COMPRESSOR WITH RECEIVER (AIR COOLED)

OPERATIONAL DATA

FLOW (m³/hr) Vendor to specify

Qty. in No. Vendor to specify

Suction Pressure in kgf/cm2 Vendor to specify




7/28/2019 Annexure IV - 205847



SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

Discharge temp. ( system outlet ) in °C Vendor to specify

Recommended Motor Rating (Kw/P) Vendor to specify

Recommended Motor Rating (Kw/P) Vendor to specify

MECHANICAL DATA

Type of Compressors Screw Compressor

Model NO. Vendor to specify

No. of Stages Vendor to specify

No. of Screws Vendor to specify

Design code Vendor to specify

Power requirement at unloading condition (in kW) Vendor to specify

Power requirement at loading condition (in kW) Vendor to specify

Speed in rpm Vendor to specify

Lobe Tip Speed m/Sec Vendor to specify

Dimension of Male and Female Screw Vendor to specify

Noise level at 1 m distance Vendor to specify

Minimum(L10) Life of Bearing in hrs Vendor to specify

Overall dimension of compressor (LxWxH) in m Vendor to specify

Discharge Air Outlet Pipe Size (mm) Vendor to specify

Oil Content in the outlet Vendor to specify

Approx. Weight (kg) Vendor to specify




7/28/2019 Annexure IV - 205847



SYSTEMTS NO - 1030-H000-Z06016-0015-1518-

0001_00

AEGIS LIMITED

ESSAR ENGINEERING

SERVICES DIVISION

MATERIAL OF CONSTRUCTION

CASING (Material/Thk.) mm Vendor to specify

HOPPER (Material/Thk.) mm Vendor to specify

TUBE SHEET (Material/Thk.) mm Vendor to specify

PLATE (Material/Thk.) mm Vendor to specify

CUP (Material/Thk.) mm Vendor to specify

SCREW ELEMENT Cast Steel

OIL FILTERS Cloth/Oil bath/ Paper/ Oilwetted

INTERNAL PIPE FITTINGSAluminum Alloy and

Rubber Hoses

BEARINGS Cast Iron Housing

SHAFTForged steel AISI 1030-1035/ Forged SS ASTM

AISI Type 410SS

ROTOR BODY

CI ASTM A395/ ForgedSteel AISI 1030-1045/Cast Aluminum ASTMB26 alloy 355/ C355

NOTE:

∗

Seller shall furnish the Additional Specification if any.∗ Application point wise number of nozzles & water quantity.∗ Total water required for all the application points under each pump house.∗ Quantity of pumps, pump capacity & head at each pump house.

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