specifications with drawings

7/29/2019 Specifications With Drawings

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RFQ 09SQ340032

Stainless Steel Slide Gates

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CONTINUOUS DUTY MODULATINGSTAINLESS STEEL SLIDE GATES

PART 1 GENERAL1.01

GENERALProvide 4 (two inlet gates and two outlet gates) 30 diameter modulating continuous duty slide gates andpositioner. Provide on site technical support for 2 days during installation (gate manufacturer) and 2 daysduring commissioning (actuator/controls manufacturer). Provide a minimum of 2 hours of operator trainingduring the commissioning of the gates and controls. Sketches 1 and 2 are provided to assist in preparingyour proposal and for use during commissioning of the gates.

1.02 REFERENCESA. American Water Works Association (AWWA)

1. AWWA C513-97 Open-Channel Fabricated-Metal Slide Gates2. AWWA C540-02 Power-Actuating Devices For Valves And Slide Gates

B. National Electrical Manufacturers Association (NEMA)1. NEMA ICS 5-2000 Industrial Control and Systems: Control Circuit and Pilot

Devices

2. NEMA MG 1-2003 Motors and Generators3. NEMA 250-2003 Enclosures for Electrical Equipment (1000 Volts

Maximum)

1.03 DEFINITIONSA. Face and back pressure heads: Head at vertical distance from center of gate to maximum water

surface.

1.04 SUBMITTALSA. Submit the following with proposal

1. Drawings and data showing assembly, type, size, and detail dimensions of slide gate andlift installation; Include lift capacity.

2. Detail Specifications of Flush Bottom Seal.3. Wiring diagrams showing circuit connections supplied with and as part of the motor-operated lift.4. Complete and recommended spare parts listing and parts breakdown drawings for use

during the operation and maintenance of equipment.


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5. Motor data:a. Locked-rotor torque: foot-poundsb. Full-load torque: foot-poundsc. Horsepower rating: horsepowerd. Voltage rating: voltse. Locked-rotor current: amperesf. Full-load current: amperesg. Time rating: minutesh. Duty cycle

B. Final data to be submitted during one week before operator training:1. Service manuals, including wiring diagrams for the motor-operated lift.

1.05 PROJECT CONDITIONSA. Supply power: 480 volts, 3 phase, 60 hertzB. 4 to 20 milli-ampere(mA) direct current (DC) source to actuate valve positionerC. 120 VAC 1-phase supply (if needed to supply transducers)PART 2 PRODUCTS2.01 SLIDE GATEA. Design and manufacture in accordance with AWWA C513, Except:

1. Gate frame and slide: stainless steel; 316 stainless for slide and parts permanentlysubmerged, 304 or 300 series for parts above the water level.

2. Seating faces: UHMW polyethylene.3. Capscrews, studs, assembly bolts, anchor bolts, and gate stem: Stainless steel conforming

to any 300 series above water; 316 series below water.

4. Nuts: Bronze.B. Waterman Model SS-200 or equal meeting the leakage requirement of AWWA C-501.C. Seating and unseating heads: Design to be suitable for 10 foot seating head and 10 foot unseating

head.

D. Closure type: Flush-bottomE. Flat-back type, Removable.


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F. Frame and slide:1. Slide: Square bottom type.2. Frame: Self-Contained.3. Raised surfaces: Only as necessary for attaching seats

2.02 STEM AND STEM GUIDESA. Design and manufacture in accordance with AWWA C513, Except:

1. No portion of stem shall have cross-sectional area smaller than root area of threadedportion of stem. Minimum stem size 1 diameter.

2. Stem may have upset end or stem block.3. Stem block:

a. Thread or screw onto bottom end of stem, or designed for an upset stem end.b. Rigidly pin or key to stem.

4. Stem guides: Fully adjustable.2.03 MOTOR-OPERATED GATE LIFTA. Design and manufacture in accordance with AWWA C540, Except:

1. Handwheel and declutching mechanism:a. Provide handwheel for manual operation.

1) Manual operation not prevented by fused motor.2) Handwheel pull, maximum: 40 pounds when raising or lowering gate

under maximum load.

3) Handwheel is to be mounted 2 to 3 feet above top of headwall.b. Declutching lever:

1) Place operator in manual operation by mechanically disconnecting motordrive from gear train.

2) Provide positive indication for remote use when handwheel is engaged formanual operation.

3) Automatically return to electric drive position after manual operation.2. Enclose gears in housing.3. Lifting nut: Bronze. (a total of two spare nuts shall be provided for warehouse STORES)4. Provide for lubrication of sliding and rolling surfaces.5. Counter or dial type position indicator:

a. Positive mechanical or electrical drive to show gate opening in percent open.


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b. Measurement divisions: Manufacturer's option. If LCD provide cover to protectfrom sun.

6. Stem cover: Steel.B. Seating and unseating heads: Design to be suitable for seating head of 10 feet and unseating head

of 10 feet.

C. Operating speed: 12 inches per minute plus or minus 15 percent.D. Electrical equipment enclosures: NEMA 250, Type 4, flange-mounted disconnect enclosure.E. Motor:

1. Induction type.2. Rated: 480 volts, three phase, 60 hertz.3. Conforms to NEMA MG 1.4.

Designed for required service.

5. Totally enclosed, fan-cooled (TEFC).6. Time rating, minimum: 15 minutes continuous duty.7. Operating ambient air temperature: -18 to +70 degrees C at elevation 150 feet.8. Design motor for full-voltage starting, reversing duty, modulating duty.9. Locked-rotor torque, minimum: 250 percent of full-load torque.10. Motor stator insulation: Class B, F, or H with temperature rise for motor in accordance with

NEMA MG 1.

11. Motor overload: Operation will stop.F. Integral Starter and overloads:

1. Integral to motor operator or field provided within electrical equipment enclosures as statedin Section 2.03 (D).

2. Accepts project conditions stated in Section 1.03G. Torque switch mechanism:

1. Integral part of motor operator.2. Function: Protect gate and motor operator in both opening and closing directions.3. Torque switch:

a. Adjustable settings and independent adjustment for opening and closingdirections.

b. Electronic torque switches are not permitted.4. Contacts rating designation: NEMA ICS 5 A300.5. Provide one independent contact for over torque condition:


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H. Limit switch mechanism:1. Limit switches and associated gearing: Integral part of motor operator.2. Heavy-duty type limit switches.3. Adjustable to operate at any opening.4. Contacts rating designation: NEMA ICS 5 A300.5. Provide at least two independent limit switches, set to function in accordance with

schedule as listed below:

a. One electrically independent contact: Close at fully-open positionb. One electrically independent contact: Close at fully-closed position

6. Connect limit switches to associated starters so that motor will stop when valve hasreached its associated fully open or fully closed limit.

I. Position transducer:1.

Output control signal with the gate in the fully-closed position, minimum 4 mA DC. Outputcontrol signal with gate in the fully open position maximum 20 mA DC.

2. Suitable for continuous operation:a. Temperature range: -18 to +70 degrees Cb. Relative humidity up to 90 percent

3. Position display:a. Digital LED shows gate opening.b. Units: Percent openc.

Precision 1/100-inch

d. Display height, minimum 0.3 inches.e. Location: At pushbuttons

4. Input signal reflecting the gate feedback position between full close (4 mA DC) and fullopen (20mA DC). DC Source voltage supplied by the transducer.

J. Selector switch:1. Rotating, three position.2. Connect controls so that operator will function from specified location when selector switch

in the following positions:a. LOCAL: Operator controlled by pushbuttons on unit.b. OFF: Operator de-activated.c. REMOTE: Operator controlled by remote 4-20 mA DC signal.

3. Heavy-duty oil-tight type.4. Contacts rating designation: NEMA ICS 5 A600


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5. Operable from outside enclosure underneath tamper-proof cover.K. Pushbuttons:

1. Maintained contact pushbutton units.2. Heavy-duty oil-tight type.3. Contacts rating designation: NEMA ICS 5 A1504. Four pushbutton units:

a. RAISE.b. LOWER.c. STOP.d. OVERLOAD RESET.

5. Operable from outside enclosure.6. Connect pushbuttons to integral starters so that motor will operate when pushbuttons are

pressed:

a. RAISE: Motor will raise gate.b. LOWER: Motor will lower gate.c. STOP: Motor will stopd. RAISE and LOWER buttons are pressed simultaneously: Motor will not operate.

L. Connections and terminal blocks:1. Conductors:

a.

Copper, type THW, THWN, or XHHW.b. Enclose in liquid-tight conduit with black jacket flexible metal conduit, or rigid steel

conduit.

c. Attach identification marker near each conductor termination.2. Furnish conductors necessary for interconnecting enclosures mounted on motor operator.3. Terminate, on terminal blocks, in one enclosure, power and control conductors for

connections external to gates.

4. Mark terminals with terminal designations.5. Hub: Suitable for liquid-tight flexible-metal or rigid steel conduit.

M. Rotork or equal. Provide any hand held controller or programmable configurator necessary toadjust the motor operator.

Guidance for Quote Preparation


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Quote should be clear and concise. The quote shall include all associated costs, labor and material.Quotes shall contain, but are not limited to, the following items:

Evaluation Factors

1. Technical Provide literature and/or brochures on items proposed that meet the Governments

requirement.

2. Past Performance The offeror shall include a narrative summary of 3 to 5 recent relevant orders insufficient detail that describes the work performed. The offeror shall include:

(i) Projects completed within the period of 3 years immediately prior to submission of this offer. (ii)Name(s) and telephone number(s) of references from the acquiring agency or customer who may becontacted for further information. It shall include the order number, dollar value of the contract, andthe estimated and/or actual completion date. (iii) Successful past performance of technical supportstaff performing the installation and commissioning.

Award will be made to the responsive and responsible offeror whose proposal conforms to the evaluationfactors and is the most advantageous to the Government. The following factors shall be used to evaluateoffers:1) Technical, 2) Past Performance and 3) Price.Offerors are required to complete and submit 52.212-03 Offeror Representations and Certifications Commercial Items, under Section I of the solicitation with the proposal.


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