submerssible pump

ROYAL COMMISSION FOR JUBAIL AND

ROYAL COMMISSION FOR JUBAIL AND YANBU

MADINAT AL-JUBAIL AL-SINAIYAHSPECIFICATION COMPARISON

CONTRACT NO.:021-CO5RCONTRACT TITLE:DEVELOPMENT OF BUFFER ZONE,SHOWROOM SPACE NORTH OF JTICONTRACTORDATE:

AL SHALAWI HOLDING

DOCUMENTS NO.:PREPARED BY:TOUSIF AHMEDCHECKED BY:VICTOR.S

SUBMITTAL TITLE:SUBMERSSIBLE PUMP FOR LIFT STATION

SPEC. REF. I.E. SECTION, PAGE, NO., ETC.MAT'L SOURCE (MFR SUPPLIER)SPECIFICATION REQUIREMENTPROPOSED MATERIALREMARK (IDENTIFY ANY DEVIATIONS FM SPECS AND JUSTIFY)

SECTION 02530

SANITARY SEWAGEPARA 2.11MANUFACTURER:

2.11 SEWAGE PUMP STATIONS (TERTIARY)3. All pumps of the same type, frame and size shall be of the same manufacturer and shall have interchangeable parts, and shall be a type and brand as Approved by the Royal Commission.4. All pumps shall be suitable for the nature and composition of the sewage to be pumped and for the throughout specified range of pumping requirements such as flow rates, heads and duty points as indicated on the Contract Drawings.5. All completed and installed operating pump units and accessories shall be suitable for the intended location and service and shall be free of operating

problems and unusual vibrations

PROPOSED SEWAGE PUMP

parameters like head, flow rate are compared .(attached in other sheet)

WE CERTIFY THAT ALL THE REQUIREMENT OF THIS SPECIFICATION FOR THE PROPOSED PRODUCT HAS BEEN COMPARED, AND THE DEVIATIONS FROM THE SPECIFICATION HAVE BEEN SPECIALLY IDENTIFIED.

Q.C. MANAGER:VICTOR.SDATE:

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CONTRACTOR:KULDEEP TYAGIDATE:

PROJECT MANAGERSignature




AL SHALAWI HOLDING




SECTION 02530SANITARY SEWAGEPARA 2.11MANUFACTURER:

6. Motors shall be provided by the pump manufacturer and shall be air-filled, totally submersible. Motor nameplate rating shall exceed the maximum power required by the pump in the operating head range.

7. It is essential that the selected pump manufacturer shall have a reputable representative permanently based in Saudi Arabia, who carries ample stocks of spare parts and can offer first-class servicing, commissioning and start-up facilities for the pump stations.



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SECTION 02530


B. PUMPS AND APPURTENANCES1. All tertiary sewage pumps shall be of the submersible, centrifugal non-clogging units capable of passing a 75 mm sphere, designed specifically for municipal unscreened raw sewage application.2. Each pump shall be attached to a guide rail and locating/mounting system that permits easy pump removal and replacement. The pumps shall conform to the requirements of SECTION 15130.SECTION 15130-PUMPSA. Centrifugal pump fabrication, performance, installation and testing shall be in conformance with ANSI/HI 1.1 - 1.6.



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SECTION 02530


4. All pumps from 1 hp and larger shall be base mounted pumps.

8. Select pumps having mechanical seals.

ATTACHMENTS:

1. Actual Flow-Head Calculations and Pump Section Details.

2. Product Data

a) Certified pump curves showing performance characteristics with pump and system operating point plotted.

b) NPSHR curve, when applicable.

c) Electrical characteristics.

d) Electrical Parameters

1) Pump speed in rpm.



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SECTION 02530


2) Motor horsepower.

3) Motor frame size.

4) Service factor.

e) Pump drives assembly details.

f) Pump Construction Details

1) Complete materials and dimensional details.

2) Connection requirements, type and size.

3) Bearings including manufacturers ratings of full load operating hours.

4) Pump Seals-Listing maximum operating temperatures and material limitations.

g) Pump Efficiency.



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SECTION 02530


3. Manufacturer's Detailed Installation Instructions.

4. Operation and Maintenance Data

a) Include assembly views.

b) Lubrication instructions.

c) Replacement parts list.

d) Complete operation and maintenance manuals.

5. Shop Drawings

a) The Vendor's General Arrangement or outline drawings.

c) All data required to install the pump on its foundation.

6. Millwright's Certificate

a) Certify that base mounted pumps (where applicable) have been aligned.



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SECTION 02530


5. Material for guide rails and lifting chains shall conform to AISI Type 316L stainless steel. Guide rails shall be Schedule 80 stainless steel pipe. All guide rail brackets, fixings and fasteners shall be stainless steel Type 316L.

11. The pumps shall be of vertical spindle design capable of handling raw, unscreened sewage and shall be so spaced as to prevent vortexing cavitation during their operation.

14. All major components including pump casing, stator casing, oil casing, sliding brackets and volute shall be manufactured from cast iron and the shaft from stainless steel.



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SECTION 02530


15. All surfaces in contact with sewage shall be coated with pure epoxy or pure polyurethane. Dry film thickness of coating shall be 500 m minimum. All exposed nuts and bolts shall be manufactured from Type 316L stainless steel.

16. A wear ring system shall be installed to provide sufficient sealing between the impeller and the volute casing. The impeller shall be of non-clog design, having a long, wide through-let with no acute turns, and be capable of handling solids, heavy sludge and other materials found in normal sewage. It shall be dynamically and statically balanced, key driven, and attached to its shaft by a suitable stainless steel fastener.



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SECTION 02530


17. The pumps shall be fitted with a mechanical rotating shaft seal system running in an oil reservoir having separate constantly hydro-dynamically lubricated lapped seal faces.C. MOTORS AND ACCESSORIES1. The integral driving motor shall be sealed submersible type, housed in an air filled watertight casing and shall be a moisture resistance Class F installation designed for continuous duty, or in a watertight casing filled with dielectric oil.

2. Motor shall be 3-phase induction type suitable for operation on 220/127 V or 380/220 V, 60 Hz power supply, as indicated on the Contract Drawings.



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SECTION 02530


5. Each motor shall be capable of continuous operation in air (un-submerged) for at least 24 hours under pump full load conditions, without exceeding the temperature rise limits for the motor insulation system.

6. Motor shall have stator winding heat sensor assembly. Thermal sensors shall be used to monitor stator temperatures and shall be built into the motor, be supplied by the motor manufacturer, and shall activate a switch upon high temperature. Thermostat shall reset automatically when motor cools to safe operating temperature.



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SECTION 02530


15. Each unit shall be provided with an adequately designed cooling system. Thermal radiators, cast integral with stator housing are acceptable. Where water-jacks are used, separate circulation shall be provided and cooling media channels and ports shall be non-clogging by virtue of their dimensions and configuration.

PUMP MATERIALS:

A. Pump casing shall be made of any one of the following material:

1. Gray iron casting conforming to ASTM A48M or A278. Class of castings shall be as specified in the documents.

2. Composition bronze or ounce metal casting conforming to ASTM B62.



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SECTION 02530


3. Stainless steel casting conforming to ASTM A743M.

4. Ferritic ductile iron casting conforming to ASTM A395M.B. Pump shaft shall be made of either of the following material:

1. Steel conforming to ASTM A108.

2. Stainless steel conforming to ASTM A276, Type 316 L.C. Wearing Rings

1. Replaceable bronze case wearing rings.



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SECTION 02530


D. Impeller and impeller seal ring shall be made of any one of the following material:1. Gray iron casting conforming to ASTM A48M or A278.

2. Bronze casting conforming to ASTM B584 or B148.

3. Stainless steel casting conforming to ASTM A743M.

4. Clearances and vibration tolerances shall be within limits specified by Hydraulic Institute Standards.



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SECTION 02530


E. Impeller Materials Selection1. Provide cast iron impellers on pumps for closed loop systems, such as hot water heating, chilled water, hot or cold glycol, unless otherwise indicated.

2. Provide bronze impellers on pumps for open loop systems such as domestic hot water, domestic cold water, well water, condensing water or condensate, unless otherwise indicated.F. Coupling

1. Flexible coupling with safety guards.



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SECTION 02530


G. Bearings1. Ball or roller bearings.

2. Select for 2 years minimum service life at maximum load condition or, rated for minimum life of 10 000 hour, whichever is greater.

3. Pre-lubricated, grease, water or oil-lubricated bearings shall be used according to application requirements.H. Mechanical Seal

1. Suitable for specific application.I. Base plate

1. Full base.

2. Made of either of the following material:

a) Gray iron casting conforming to ASTM A48M.

b) Structural steel conforming to ASTM A36M.



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