CHARACTERISTICS OF DIFFERENT PUMPS AT VARIABLE HEADS AND

FLOW RATES

S:No HP KWImpeller

Type

Dia

mm

Conne-

ctionsModel M³ LPH

MW

C

Kg/C

m²

Amper

es

Motor

rpm

1 0.25 0.18 OPEN ø60 25 SMSCP -

2.53 3000 5 0.5 0.6 2880

2 0.5 0.37 OPEN ø90 38 SMSCP -

56.5 6500 4 0.4 0.55 2880

3 1 0.75 OPEN ø95 38 SMSCP -

108 8000 4 0.4 0.82 2880

4 1.5 1.1 OPEN ø104 38 SMSCP -

158.5 85000 6 0.6 1.5 2880

5 2 1.5 OPEN ø120 38 SMSCP -

2010.5 10500 10 1.1 1.6 2880

6 3 2.2 CLOSED ø155 51 SMSCP -

3013.5 13500 19 1.9 3 2880

7 53.7

/5CLOSED ø165

63/51

SMS

CP -

5015.25 15250 27 2.7 4.6 2880

0

5

10

15

20

25

30

0 5 10 15 20 25

Head

MW

C

Discharge m3/hr

0.5 HP

1 HP

2 HP

3 HP

CP-05

CP-10CP-20

CP-30

CP-05

CP-10CP-20

CP-30

PUMP CHARACTERISTIC CURVES

0

0.5

1

1.5

2

2.5

3

3.5

4

0 5 10 15 20 25

Curr

ent,

Am

ps

Discharge, m3/hr

CP-05

CP-10

CP-20

CP-30

TECHNICAL INFORMATION

Maximum Inlet Pressure 58 PSI

Temperature Range 0°– 130° F

MOC

Product contact components AISI 304

Seal Components - Carbon V/s TC, TC Vs TC

Gaskets O ring - EPDM, Viton,

Product Contact Surfaces finish- 32 Ra

Motor - 3 Phase, 50 Hz, 415 VAC, 2880 RPM

Recommended Preventive & seal maintenance

Regular visually inspect of mechanical seal for

any leakage.

Replace mechanical seal after 1 year Replace

Lubricate Before fitting the O-rings with Silicone

grease/food lubricant.

ELASTOMER INSPECTION

Inspect all Gaskets and O-rings while performing

Pump maintenance ,we recommend to replace

The gaskets / o rings.

Pump shaft, seal replacement.

MOTOR LUBRICATION

Use a standard grade ball bearing grease.

INSTALLATION

Prior to actually installing the pump, ensure that:

• The pump will be readily accessible for maintenance, inspection

and cleaning.

• Adequate ventilation is provided for motor cooling.

• The drive motor type is suitable for the environment where it is to

be operated. Pumps intended for

Use in hazardous environments e.g., explosive, corrosive, etc., must

use a motor and drive with the appropriate enclosure

characteristics. Failure to use an appropriate motor type may result

in serious damage and/or injury.

PIPING GUIDELINES

This section describes good piping practices to obtain maximum

efficiency and service life from your pump.

Maximum performance and trouble-free operation require adherence

to good piping practices.

• Ensuring proper piping support and alignment at both the suction

inlet and discharge outlet can help prevent serious damage to

the pump housing

• Avoid abrupt interruptions in the piping system

• Avoid throttling valves in the suction piping.

• Keep suction lines as short and direct as possible.

• Avoid the formation of air pockets in the piping

ELECTRICAL INSTALLATION

Have an electrician connect the motor using sound electrical

practices. Provide adequate protection. Pumps

fitted with mechanical seals must not run dry, not even momentarily.

Determine the direction of rotation by

watching the motor fan, which must turn clockwise.

PUMP OPERATIONS & START-UP INSTRUCTIONS

• Remove any foreign matter that may have entered the pump.

• Turn shaft by hand to make sure seals do not stick together

otherwise, if motor is bumped in wrong direction it may unwind the

seal spring.

• Do not use the pump to flush the system!

Check pump for proper rotation as indicated on the pump. Proper

motor direction is clockwise when looking at the fan end of the motor.

(NOTE: When checking the direction of rotation, the pump must be full

of liquid.)

• Never run the pump dry, even momentarily. Seal damage can result.

SHUT-DOWN INSTRUCTIONS

• Shut off the power supply to the pump.

• Close the shut-off valves in the suction and discharge piping.

• Drain and clean the pump.

• Protect the pump against dust, heat, moisture and impact damage.

INSTALLATION OF WATER FLUSH FOR DOUBLE MECHANICAL

SEAL

Set up the water flush for the double mechanical seal -Excessive flow

of water ,Through with 2-5 feet physical height of tubing. This ensures

that some water is always in the center seal and the seal never runs

dry. It is possible to inject steam through the center seal (within the

pressure requirements). We do not recommend using steam alone for

the cooling/lubricating of the seal. It is desirable to have the flush water

on the outlet side visible. This allows an easy check to see that the

flush water is on and also if the seal is functioning properly. In a

malfunctioning seal the flush water will disappear, become

discolored, or show an unusual increase in flow. If these conditions

exist, check the seal and replace if necessary.

INSTALLATION OF WATER CASCADE

The water cascade (if supplied) is piped through the hub of the

pump housing and into the stationary seal. Since there is no rear

seal, the flush water will exit through the rear of the seal area

TROUBLESHOOTING

Pumps are relatively maintenance free, however, in the event that

a problem does arise, If a motor problem arises

please contact your local motor repair representative.

POSSIBLE CAUSES OF TROUBLE

•Pump does not deliver liquid

•Not enough capacity delivered

•Not enough pressure developed

•Pump loses prime after starting

•Pump requires too much power

•Seal leaks

•Seal has short life

•Pump vibrates or is noisy

•Motor bearings have short life

•Pump overheats and seizes

•Pump leaks from cover

SUCTION PROBLEMS

• Pump not primed - Adjust piping so that pump is flooded, Install a

foot valve to keep liquid in the Pump

• Pump or suction pipe not completely filled with liquid - Adjust piping

so that suction pipe is filled with liquid

• Suction lift too high - Raise the level of the liquid, lower the level of

the pump.

• Insufficient difference between suction pressure and vapor

pressure (cavitations) - Use larger pipe on the inlet side of the

pump, raise

• The level of liquid above the pump center line, lower the

temperature of the liquid, eliminate fittings in suction line if

possible, check inlet pipe for obstructions

• Too much air or gas in liquid - Install air relief valve, turn pump

head so discharge is at 45° angle

• Air pocket in suction line- Adjust pipe to eliminate pocket

• Air leaks into suction line - Find and fix air leak

• Air leaks into pump through seal - Check seal for proper

installation, replace seal if defective

• Foot valve too small - Replace with larger foot valve

• Foot valve partially clogged - Clear obstruction from foot valve

• Seal flush water not on - Turn on water to seal flush

• Water seal pipe plugged - Clear obstruction from seal water pipe

• Seal water flush pressure too high - Adjust water flow to seal flush

to 1-2 at a maximum of 5 psi.

MECHANICAL PROBLEMS

14. Speed too low - Check electrical connections, consult motor

manufacturer

15. Speed too high - Check electrical connections, consult motor

16. Direction of rotation incorrect - On a three-phase motor, switch any

two of the three leads

17. Total head of system higher than design head of pump - Check for

restrictions in the pipe, use larger diameter pipe, use larger diameter

impeller

18. Total head of system lower than pump design head - Install

throttling valve in line, use smaller diameter pipe, use smaller diameter

impeller

19. Specific gravity of liquid greater than expected - Use larger

motor, check application

20. Viscosity of liquid greater than expected -. Use larger motor, use

larger diameter pipe, check application

21. Operation at very low capacity - Install throttling valve

22. Parallel operation of pumps unsuitable for such operation - Replace

parallel pumps with a single larger pump

23. Foreign matter in impeller - Remove pump cover and clear foreign

matter

24. Foundations not rigid - Provide firmer foundation for the pump

25. Shaft bent - Replace shaft

26. Impeller rubbing on pump housing - Re-establish gap of the

impeller, replace impeller if defective, make sure impeller nut is

tightened properly

27. Motor bearings worn - Replace motor bearings

28. Impeller damage - Replace impeller

29. Cover gasket defective permitting leakage - Replace cover gasket

30. Shaft or shaft collar worn or scored - Replace pump shaft and/or

collar

31. Seal improperly installed - Install seal correctly, replace seal if

defective

32. Type of seal incorrect for operating conditions - Replace seal with

correct type of seal, check with your local representative

33. Pump shaft running off center because of worn bearings or

misalignment - Check motor bearings and replace if defective

34. Impeller out of balance causing vibration - Balance the impeller

35. Motor front bearing not locked - Contact motor manufacturer for

locking shim or to replace motor with a motor with locked front bearing

36. Dirt or grit in sealing liquid, leading to scoring of shaft or seal surface

- Use clean source of water for seal flush

37. Lack of lubrication in motor bearing - Lubricate motor bearings

38. Improper installation of antifriction bearings (damage during

assembly, incorrect assembly of stacked bearings, use of unmatched

bearings as a pair, etc.)- Reinstall bearings correctly

39. Dirt in bearings - Clean bearings, replace if defective

40. Piping is obstructed - Remove obstruction in pipe, check for closed

valve .

PUMP INSPECTION cum Test Certificate

ITEM: SS 304 Grade 1 HP CENTRIFUGAL PUMPDESPATCH

DATE27/10/2012

DWG.NO.: FD-1HP-95-38 MODEL CP - 10

P.O.NO.: FBE/12/1740Manufactur

erGOWTHAMI PUMPS AND VALVES

CUSTOMER Food & Biotech Engineers(I)pvt.ltd Quantity 1 NO of 1

A PUMP B MECHANICAL SEAL

1

IMPEL

LER

TYPE

OPEN MATL.AISI

3041 MAKE:

2

IMPEL

LER

DIA

95 FINISH 2 SIZE: 22 MM

3

CONN

ECTIO

NS

Weldable WELDING

TIG

/CF

8

3 TYPE: CARBON V/S STERLITE

(A)

SUCTI

ON

38 mm HEAD

8

MW

C

(B)

DISCH

ARGE

38 mm DISCHARGE

800

0

LPH

4PUMP

S/No.CP10-124

C MOTOR

5MA

KELaxmi Hydraulics Pvt. Ltd INSUL. CL. F

RP

M2800

6 TYPEDeg.Of

Protection.A°C 50

RAT

ED

CUR

REN

T

1.61 AmpsRATIN

G(kW

/ HP)

0.75 KW/1 HP Frequency (HZ) 50

7

MOTO

R

EFFY.

Operating Volt 415+10%Dut

yS1

8

MOTO

R

S/NO.

1000203084 Connection Star IP 55

DB. TESTING MEDIA : WATER

S/NO CAPACITY HEAD

IN MWC

MAX

CURRENTIN LPH Cum/Hr

1 2500 2.5 9 0.6

2 4500 4.5 7 0.7

3 5500 5.5 6 0.8

4 8000 8.0 4 0.8

5 14500 14.5 2 1.1

NOTE: 1) PUMP HAS BEEN TESTED AT

AMBIENT TEMPERATURE.

3) DURING RUNNING TRAIL, LEAKAGE WAS

NOT FOUND.2) TOLERANCES : Q= ±8% ; H=± 6%. 4) IMPELLER IS DYNAMICALLY BALANCED.

PUMP INSPECTION cum Test Certificate

ITEM: SS304 Grade 0.5 HP CENTRIFUGAL PUMP DESPATCH DATE 27/10/2012

DWG.NO.: FD-0.5 HP-94-38 MODEL CP - 0.5

P.O.NO.: PO.NO: FBE/12/1740 Manufacturer

GOWTHAMI

PUMPS AND

VALVES

CUSTOMER M/s. Food & Biotech Engineers (I)Pvt.Ltd. Quantity 1 NO of 1

A PUMP BMECHANICAL

SEAL

1 IMPELLER TYPE OPEN MATL. AISI 304 1 MAKE:

2 IMPELLER DIA 90 FINISH 2 SIZE: 22 MM

3 CONNECTIONS Weldable WELDIN

GTIG/CF8 3

TYPE: CARBON

V/S STERLITE

(A) SUCTION 38 mm HEAD6.5

MWC

(B) DISCHARGE 38 mm DISCHAR

GE

6500

lph

4 PUMP S/No. CP 05 - 54

C MOTOR

5 MAKE Laxmi Hydraulics Pvt. LtdINSUL.

CL.F RPM 2800

6 TYPE

Deg.Of

Protecti

on.

A°C 50RATED

CURREN

T

0.92

Amps

RATING(kW / HP) 0.37 KW/0.5 HPFrequen

cy (HZ)50

7 MOTOR EFFY. 70%Operati

ng Volt

415+10

%Duty S1

8 MOTOR S/NO.Connect

ionStar IP 55

DTESTING: A. MEASURING METHOD : WITH ELECTROMAGNETIC FLOWMETER

B. TESTING MEDIA : WATER

S/NO CAPACITY HEAD MAX

IN LPH Cum/Hr IN MWCCURREN

T

2 2500 2.5 6 0.40

3 4500 4.5 5 0.45

4 6500 6.5 4 0.55

5 10300 10.3 2 0.65

6 12000 12.0 1 0.66

NOTE: 1) PUMP HAS BEEN TESTED AT AMBIENT TEMPERATURE.

2) TOLERANCES : Q= ±8% ; H=± 6%.

3) DURING RUNNING TRAIL, LEAKAGE WAS NOT FOUND.

4) IMPELLER IS DYNAMICALLY BALANCED.

CENTRIFUGAL PUMP SAFETY INSTRUCTIONS & WARRANTY CARD

Caution:

•Be sure that your Pipe lines, storage tanks and process equipments are cleaned.

(without any minute dust particles)

•Take out the Pump only from packing as and when it is required to be installed.

•Position the pump horizontally by adjusting the ball feet’s.

•Ensure that there is no packing material at inlet and the outlet.

•Avoid the weight of piping on the pump casing by providing pipe support suitably.

•Check the pump for any visible transport damages.

•Tighten the clamping ring well before starting the pump.

•Pump electrical connection have to be done by authorized personnel.

•Check for the correct flow direction. Ensure that impeller rotates in clock wise direction

when seen from fan side of pump motor

•The pump must not run in dry.

• Run the pump at rated throughput.

•All centrifugal pumps have a required head (pressure) at the suction side of the pump

•For hot liquid transfer pump be ensure that normal temperature water should be

continuously flown in to cooling chamber and at the out let, water can be recycled after

obtaining normal temperature.

•Double mechanical seal will be damaged if water circulation is not provided hence it

won’t cover under warranty.

The Centrifugal Pump is covered by a limited warranty. The customer is required to perform routine maintenance (Cleaning) as required

Warranty:

Gowthami pumps and valves warranty the products manufactured and sold by it to be free from defects in material and workmanship for normal use and service from the date of delivery to original purchaser for a period of 1 year from the date of shipment. This limited warranty does not cover, and no warranty is provided, for parts that by their nature are required to be replaced periodically as a function of use of the normal operation of the system. (Mechanical Seal, O Rings)These items include, without limitation: Mishandling of Centrifugal Pump (improper handling damages Pump), misuse, negligence, accident, and alteration of the Pump or Operated by untrained professional or repaired by an unauthorized individual is not covered by the warranty.

Nominal Pressure:

Maximum product pressure........58 PSI maximum (4 Bars)Test pressure ……. 70 PSI (5 Bars)

Temperature range: 0° C to + 130° C

GOWTHAMI PUMPS AND VALVES

Warranty Card