WRA-3291TechnicalSpec.pdf

WRA 3291 Eccentric Valves 316SS

SECTION 15101

VALVES AND APPURTENANCES

PART 1 - GENERAL

1.01 DESCRIPTION:

A. Provide replacement eccentric plug valves and appurtenances as indicated and specified.

1. Provide valve sizes, capacities and number as indicated or specified for use in the waste water digester gas system.

1.02 REFERENCES:

A. American Society for Testing and Materials (ASTM):

1. ASTM B61: Standard Specification for Steam or Valve Bronze Castings.

2. ASTM B62: Standard Specification for Composition Bronze or Ounce Metal Castings.

3. ASTM A93A: Standard Specification for Alloy-Steel and Stainless Steel

Bolting Materials for High Temperature or High Pressure Service and Other Special Purpose Applications.

4. ASTM A182/A182M-08a: Standard Specification for Forged or Rolled

Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service

5. ASTM A193 / A193M - 09 Standard Specification for Alloy-Steel and

Stainless Steel Bolting Materials for High Temperature or High Pressure Service and Other Special Purpose Applications.

6. ASTM A743: Standard Specification for Casting, Iron-Chromium, Iron-

Chromium-Nickel, Corrosion Resistant, for General Application.

7. ASTM A961-04: Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications

B. American National Standards Institute (ANSI):

1. ANSI B16.1: Valve Flanged Fittings, Class 125 or 250.

2. ANSI B16.5: Pipe Flanges and Flanges Fittings

3. ANSI B16.10: Face-to-Face and End-to-End Dimensions of Ferrous

Valves.

C. American Water Works Association (AWWA):

1. AWWA C-507-85: Standard for Ball Valves, 6 in. through 48 in. NPS, for Water and Sewage System.

D. National Fire Protection Association (NFPA) Publication

1. NFPA 58: Storage and Handling of Liquefied Petroleum Gases

1.04 SUBMITTALS:

A. Submit the following valve information:

1. Data, regarding valve characteristics, flow (Cv) and performance.

2. Manufacturer's literature as needed to supplement certified data.

3. Operating and maintenance instructions; valve parts lists and recommended spare parts list.

4. Provide layout drawing showing orientation of the eccentric plug valves and gear wheel actuator and nearest obstruction.

5. Provide a listing of the materials recommended for this service specified and indicated. Provide documentation showing compatibility with process fluid and service as specified and indicated.

6. Listing of reference installations as specified with contact names and telephone numbers.

7. Certified valve shop test results.

8. Recommendations for short and long term storage.

9. Special tools.

10. Shop and field testing procedures and equipment to be used.

11. Manufacturer’s product data and specifications for shop painting.

12. The most recent ISO 9000 series certification or quality system plan.

13. Material Certification:

a. If materials other than those specified are proposed based on incompatibility with the service conditions, provide technical data and certification that the proposed materials are recommended and suitable for the service conditions specified and indicated including an installation list of a minimum of five (5) installations in operation for a minimum of five (5) years. Provide proposed materials at no additional cost to the Authority. Written approval by the Authority prior to purchasing the valves is required.

b. Where materials are not specified, provide technical data and certification that the proposed materials are recommended and suitable for the service conditions specified and indicated.

14. All equipment shall be furnished by or through a single equipment supplier.

PART 2 - PRODUCTS

2.01 Valve Listing:

A. Refer to the Valve List at the end of this section for valve code numbers.

See Attachment A.

2.02 NON-LUBRICATED ECCENTRIC PLUG VALVES:

A. Manufacturers:

1. Milliken

2. Pratt.

3. Homestead

4. Or Equal.

B. Non-lubricated, eccentric plug type valve with resilient seats as specified.

C. Body: 316L Stainless, with Type 316 stainless steel bolted bonnets; suitable for 175 psi rated working pressure for valves 12-in. and smaller in a closed position;

with 90 percent pure nickel lining.

D. Port areas of valves 10-in. and 8-in. each with no less than 81 percent of pipe area.

E. Plugs: Provide 316L stainless steel plug with Buna-N synthetic rubber coating.

Seat material shall be 90 percent pure nickel and shall be held attached to the valve by original manufacturer’s welded construction with mating seats into the valve body.

F. Provide valves with mating seat of 90 percent minimum; made of 90 percent pure nickel and welded to the valve body.

G. Upper and lower plug journal bearings removable; permanently lubricated Type 316 stainless steel bushings for valves 20-in. and smaller.

H. Stem seals: Provide self-lubricated packing or rings and U-Cup type seal of

Buna-N material. Provide self-adjusting stem seals replaceable without valve disassembly.

I. Ends:

1. Provide flanged ends faced and drilled ANSI 150lb. for exposed valves

4-inches and larger.

J. For both 8inch & 10inch valves provide: Gear operated with handwheels.

Gear operators: totally enclosed worm gear, permanent lubrication, watertight and dustproof, with adjustable open and closed stops and plug position indicator.

K. Provide gear operator: Gear operator to be totally enclosed with gasketed Type 316 stainless steel covers with Type 316 stainless steel fasteners for access to valve packing. For both the 8in. and 10in. valves the gear operator connection must be key fit. The key is to be supplied by the vendor and will meet minimum length and strength requirements. Any substitutions must be approved of in writing by the Authority.

L. Shop Testing:

1. Provide certified test data for the following or conduct tests for each valve including:

a. Body hydro-test: 200% of rated pressure.

b. Seat test: 120% of rated pressure.

2. Hydrostatic tests and results must meet ANSI B.16.104 Class V shutoff requirements.

PART 3 - EXECUTION

3.01 DELIVERY, STORAGE AND HANDLING

A. Provide written shipping, storage and any protection products required and/or referenced in accordance with the manufacturers written guidelines

B. Shipping:

1.) Ship equipment fully assembled except where partial disassembly is required by transportation regulations or for protect of components.

2.) Pack and ship spare parts together with equipment and material clearly labeling the designated contents and pieces of equipment.

3.) Provide lifting devices on casings for handling.

C. Deliver products to:

Massachusetts Water Resources Authority Deer Island Treatment Plant 190 Tafts Avenue Winthrop, MA 02152