40_00_91_Valves_and_Appurtenances_Add1.docx

SPECIFICATION 40 00 91

VALVES AND APPURTENANCES

PART 1 - GENERAL

1.1 RELATED DOCUMENTS, CONTRACT CLAUSES, AND SPECIFICATIONS

The following may not include all related documents, contract clauses, and technical specifications, and does not relieve the Contractor of the responsibility of performing work associated with this Specification in accordance with all terms of the Contract herein.

· SPECIFICATION 01 33 00, Submittal Requirements

· SPECIFICATION 01 69 00, Control of Materials and Products

· SPECIFICATION 01 75 01, Starting and Placing Equipment in Operation

· SPECIFICATION 01 75 02, Field Tests of Equipment

· SPECIFICATION 01 78 36, Warranty

· SPECIFICATION 01 78 23, Operation and Maintenance Data

· SPECIFICATION 11 80 00, General Equipment Provisions

1.2 DESCRIPTION

A. Scope: Contractor shall furnish all labor, materials, equipment appurtenances, specialty items and services required to provide all valves and appurtenances as shown and specified in the Contract Documents.

B. Coordination: To ensure that all valves and appurtenant equipment are properly coordinated, and will function in accordance with the requirements of the Contract Documents, the Contractor shall obtain each specific valve and actuator type from a single supplier. That is all gate valves shall be by a single manufacturer, all plug valves shall be by a single manufacturer, all butterfly valves shall be by a single manufacturer, all valve actuators shall be by a single manufacturer, all actuators shall be by a single manufacturer, and so on. However, the Contractor shall retain ultimate responsibility under this Contract for equipment coordination, installation, operation and guarantee, and the Contractor shall furnish and install all equipment, labor, materials, appurtenances, specialty items and services not provided by the supplier(s) but required for complete and operable systems. The equipment and appurtenances covered by this Specification are intended to be standard equipment of proven ability as manufactured by reputable concerns having extensive experience in production of such equipment. The equipment furnished shall be manufactured and installed in accordance with the best practices and methods, and shall operate satisfactorily when installed as shown and specified in the Contract Documents.

C. The General Equipment Provisions (SPECIFICATION 11 80 00) shall apply to all equipment furnished under this Specification.

D. Motors: All actuator motors and drives shall be sized to be non-overloading over the full range of operating conditions specified herein, and shall comply with all state, federal and local requirements for designated area classification as shown and specified in the Contract Documents.

E. The manufacturer of the equipment specified herein shall be required to review and satisfy all relevant requirements of other Specifications of the Contract Documents and the requirements of the Contract Drawings. The Contract, manufacturer, supplier, fabricator and/or subcontractors furnishing and/or installing equipment, services and specialties associated with this Specification shall fully coordinate their efforts to avoid potential claims that are based on failure to review relevant Contract Documents, including the Contract Drawings.

1.3 QUALITY ASSURANCE

A. Manufacturer's Qualifications: Manufacturer(s) of the equipment furnished under this Specification shall have experience in providing similar type equipment and shall show evidence with his submittal of at least five (5) installations where equipment of the same material and same application of the type specified herein have been in satisfactory operation for at least five (5) years.

B. Reference Standards: Comply with applicable provisions and recommendations of the following, except as otherwise shown or specified.

· American Water Works Association (AWWA) C 504-06, RubberSeated Butterfly Valves.

· AWWA C 550-05, Protective Interior Coatings for Valves and Hydrants.

· American Society of Mechanical Engineers (ASME) / American National Standards Institute (ANSI) B16.11, Forged Fittings, Socket-Welding and Threaded.

· American Society of Testing and Materials (ASTM) A307-07b Standard Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength

· ASTM A354 - 07a Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners.

· ANSI/AWWA C110/A21.10-03, Gray Iron and DuctileIron Fittings, 3 inch through 48 inch for Water and Other Liquids.

· AWWA C111 / A21.11-07 American National Standard for Rubber Gasket Joints for Ductile Iron Pressure Pipe and Fittings.

· ANSI/AWWA C508-01, Swing Check Valves for Waterworks Service.

· AWWA C800-05, Underground Service Line, Valves and Fittings.

· ASTM B164-03 Standard Specification for Nickel-Copper Alloy Rod, Bar, and Wire

· ASTM A48/A48M-03 Standard Specification for Gray Iron Castings

· ASTM A126-04 Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings, Standard Specification for Gray Iron Castings for Valves, Flanges and Pipe Fittings.

· ASTM A436-84 Standard Specification for Austenitic Gray Iron Castings.

· ASTM A536-84 Standard Specification for Ductile Iron Castings.

· ASTM B62-02 Standard Specification for Composition Bronze or Ounce Metal Castings.

· NEMA, National Electrical Manufacturer's Association.

1.4 SUBMITTALS

Submittals shall be made for compliance-confirmation in accordance with the requirements of SPECIFICATION 01 33 00, Submittal Requirements. Contractor submittals under this Specification shall be packaged by the Contractor to limit the total number of separate submittals to no more than five (5). Submit the following:

A. Drawings and Data: Complete fabrication, assembly, foundation, and installation drawings including data and position drawings for all electrically operated valves showing how each valve will be oriented and the amount of clearance at each location, and operation, maintenance and storage instructions, together with detailed specifications and data covering materials used, power drive assembly, parts, devices and other accessories forming a part of the equipment furnished, shall be submitted for review in accordance with the procedures and requirements set forth in SPECIFICATION 01 33 00, Submittal Requirements. All engineering calculations required for submittal shall be signed by a California Registered Professional Engineer at the Contractor’s expense and shall be included in the Contractor’s bid.

B. Submit detailed drawings and data on all valves listed in this Specification, including type, size, service, rating and descriptions, as well as description of all specified requirements and all special features; identify each valve by the specific valve number as described in this Specification.

C. Technical Manuals: Complete operation and maintenance instruction, lubrication schedules and troubleshooting guides shall be submitted for review in accordance with the procedures and requirements set forth in SPECIFICATION 01 78 23, Operation and Maintenance Data, and as specified in Divisions 25 and 26.

D. Manufacturer's Qualifications: In accordance with Paragraph 1.2.A of this Specification.

E. Provide installation certifications for electrically operated valves in accordance with SPECIFICATION 11 80 00, General Equipment Provisions.

F. Electric motor actuators specified in Part 2.4 of this Specification shall be submitted by the Contractor and compliance-confirmed by the COR prior to submittal of any valves or equipment requiring electric motor actuators as shown and as specified in the Contract Documents.

1.5 MEASUREMENT AND PAYMENT

The work performed by the Contractor under this Specification shall not be measured and paid for directly, but shall be considered to be included in the Lump Sum Bid for this Contract.

PART 2 – MATERIALS, EQUIPMENT, AND/OR PRODUCT

2.1 MATERIALS

The Contractor shall provide the following materials:

A. All valves shall have manufacturer's name and working pressure cast in raised letters on valve body.

B. All manual valve operators shall open counter-clockwise.

C. All bolts, nuts and studs on or required to connect buried or submerged valves shall be of Type 316 SS.

D. All other bolts, nuts and studs shall, unless otherwise shown or otherwise specified, conform to ASTM A307-07b, Grade B; or ASTM A354-07a.

E. Bolts and nuts shall have hexagon heads.

F. Gasket material and installation shall conform to manufacturer's recommendations.

G. Unless otherwise shown or otherwise specified, all flanged valves shall have ends conforming to ANSI/AWWA C115/A21.15-05, 125 lb flange.

H. Valve Tags: Each type of valve shall be provided with a 316 SS tag listing the valve Reference Number described above. Tags shall be mounted to valve with 316 SS attachments.

2.2 VALVE LIST

A. General:

(1) Not all valves listed herein may be required under this Contract. Refer to the Contract Drawings for valve numbers and locations. Valves shall be of the type specified herein and as shown on the Drawings. All valves of the same type shall be of the same make. Valves shall be inline size except as shown otherwise on the Drawings or otherwise specified. Ratings specified are minimum, and are water working pressure unless noted otherwise or otherwise specified.

(2) Valve Reference Number: Where the valves listed below are utilized under this Contract they are identified in the Contract Documents and/or specifically called out by the size and type. The valve number identified below (i.e., V1, V2, etc) will be included on the Drawings.

B. Gate Valves:

(1) General:

(a) Valves shall be in conformance with AWWA C 550-05.

(b) Exposed manually operated gate valves shall be equipped with handwheels.

(c) Buried manually operated gate valves shall be furnished with a valve box and a 2-inch square operating nut. The operating nut shall be positioned vertically on top of the valve. The top of the operating nut shall be a maximum 12 inches below the top of the valve box.

(d) Valve key extensions shall be provided and installed on all buried gate valves when the top of the valve nut is greater than 12 inches below the top of the valve box. The extension stem shall be 316 SS, constructed so that when connected to the valve the extension stem shall be vertical.

(e) A minimum of two (2) valve tee wrenches for operating the buried gate valves shall be furnished.

(f) Valves (3" and larger) located more than 5 feet above the operating floor shall be provided with chainwheels, sprockets, and aluminum chain. The chain shall extend to 3 feet above the operating floor.

(g) Unless otherwise shown or specified, exposed valves shall have flanged ends conforming to ASME / ANSI B16.11 (2005), Class 125 and buried valves shall have mechanical joint ends conforming to AWWA C111 / A21.11-07.

(h) Shop Painting: Interior metal surfaces of cast iron valves, except finished or bearing surfaces, shall be shop painted with three coats of a compliance-confirmed two component coal tar epoxy coating applied in accordance with the manufacturer's recommendations. Painting system shall consist of two prime coats at 4 dry mils per coat, and one finish coat at 10 dry mils. Exterior surfaces of the valves shall be shop painted as specified under Part 2.9, Painting, of this Specification.

(i) Electric Motor Actuators where required, as shown on the Contract Drawings, or as specified shall be furnished and installed in accordance with Part 2.4, Electric Motor Actuators, of this Specification.

(2) Valve Number - V1

(a) Type of Valve: Gate valve.

(b) Type of Service: Water, sludge.

(c) Type of End Connection: Threaded.

(d) Size (inches): 1/2 - 2.

(e) Rating and Description: 125 lb, bronze body, solid wedge disc, nonrising stem and screwed bonnet.

(f) Handwheel: Mallable iron.

(g) Manufacturer and Product: Stockham B-103, Nibco T-113, or compliance-confirmed equal.

(3) Valve Number - V2

(a) Type of Valve: Gate valve.

(b) Type of Service: Water, (buried or blowoff, where shown or specified).

(c) Type of End Connection: Threaded or flanged.

(d) Size (inches): 1 - 3.

(e) Rating and Description: 125 lb, bronze body, solid wedge disc, nonrising stem and screwed bonnet capable of repacking under pressure.

(f) Manufacturer and Product: Provide one of the following: Stockham B-103, Powell 2707, or compliance-confirmed equal.

(4) Valve Number - V3

(a) Type of Valve: Gate valve.

(b) Type of Service: Water, (buried, where shown or specified).

(c) Type of End Connection: Threaded (2" - 6"), flanged (2" - 30").

(d) Size (inches): 2 - 30.

(e) Rating and Description: 125 lb, cast iron body, solid wedge disc, nonrising stem and bolted bonnet.

(f) Manufacturer and Product: Provide one of the following: Stockham G-608, G612, Powell 1786, 1787, or compliance-confirmed equal.

(5) Valve Number - V4

(a) Type of Valve: Resilient wedge gate valve.

(b) Type of Service: Water, sewage and sludge (exposed).

(c) Reference Standard: ANSI/AWWA C509-01.

(d) Type of End Connection: Flanged to ductile iron pipe.

(e) Flange: Flanged end dimensions and drilling shall conform with ASME / ANSI B16.11 (2005), Class 125.

(f) Size (inches): 3 - 12.

(g) Rating and Description: 200 psi water working pressure, cast iron wedge fully encapsulated with polyurethane sealing rubber per ASTM D429-03e1, and nonrising stem.

(h) Operation: Handwheel or chainwheel.

(i) Manufacturer and Product: Provide one of the following: U.S. Pipe Metroseal 250, Figure 5150, Clow F-6102, Kennedy Ken-Seal II 4561, Mueller Resilient Seat Gate Valve, A-2360-6, or compliance-confirmed equal.

(6) Valve Number - V5

(a) Type of Valve: Stainless Steel Pressure Slide Gate.

(b) Type of Service: Sewage.

(c) Reference Standard: ASTM A276-00a, ASTM F593-02e2 and ASTM F59402.

(d) Size (inches): 24.

(e) Rating and Description: Materials shall all be 316 SS construction including frame, cover, rails, stem and lift nut, and all assembly hardware and fasteners. Rated for 60 ft. seating and 10 ft. unseating pressure head.

(f) Operation: 2" square nut.

(7) Valve Number - V6

(a) Type of Valve: Resilient wedge gate valve.

(b) Type of Service: Water, sewage, and sludge (buried).

(c) Reference Standard: AWWA C509-01.

(d) Type of End Connection: Mechanical joint for C900 PVC AWWA pipe and ductile iron pipe, and restrained push-on joint for sewage and sludge.

(e) Size (inches): 3 - 12.

(f) Rating and Description: 200 psi water working pressure, cast iron wedge fully encapsulated with polyurethane sealing rubber per ASTM D429-03e1, and nonrising stem.

(g) Operation: Wrench nut in valve box.

(h) Manufacturer and Product: Provide one of the following: U.S. Pipe Metroseal 250, Figure 5460 or Figure 5080, Clow F-6100 or F-6104, Kennedy Ken-Seal II 4571 or 4901, Mueller Resilient Wedge Gate Valve, A-2360-20 or A-2360-38, or compliance-confirmed equal.

(8) Valve Number - V7 - V15 (NOT USED).

C. Plug Valves:

(1) General:

(a) Non-lubricated eccentric type valves shall be installed where flow through the valve will be in only one direction.

(b) Exposed plug valves shall have flanged ends conforming to ASME / ANSI B16.11 (2005), Class 125 and buried valves shall have mechanical joint ends conforming to AWWA C111 / A21.11-07.

(c) Plug valves for liquid service shall have a plug coated with a resilient material solidly bonded to a semi-steel core, as required, to assure low torque and drip-tight shut-off, suitable for bi-directional shutoff.

(d) All exposed valves 6 inches in diameter and larger, and all manually operated plug valves installed more than 5 feet above the operating floor, regardless of size, shall be equipped with a geared operator. Where valves are specified or shown to be furnished with a quarter turn (Type B or Type B1) actuator as specified in Part 2.4, Electric Motor Actuators, of this Specification the valve shall be furnished without the gear operator.

(e) Manually operated exposed valves smaller than 6 inches in diameter installed 5 feet or less above the operating floor shall be lever wrench operated, unless otherwise specified or shown.

(f) Exposed valves higher than 5 feet above the operating floor: Chainwheels, sprockets, and galvanized steel chain shall be provided for gear operated valves mounted more than 5 feet above the operating floor. Chain shall extend to 3 feet above the operating floor. Gearing shall be enclosed in a semisteel housing and shall be suitable for running in a lubricant, with seals provided on all shafts to prevent entry of dirt and water into the operator. Operator shaft and the gear quadrant shall be supported on permanently lubricated stainless steel bearings. Operator shall clearly indicate valve position and an adjustable stop shall be provided to set closing torque. Exposed nuts, bolts and washers shall conform to ASTM A307-07b, Grade B, or ASTM A354-04a.

(g) Where lever wrench operated valves are required, each valve shall be furnished with its own lever wrench operator.

(h) Buried manually operated plug valves shall be furnished with a valve box, a 2-inch square operating nut and position indicator. The operating nut shall be positioned vertically on top of the valve. The top of the operating nut shall be a maximum 12 inches below the top of the valve box. The position indicator shall be mounted on top of the valve.

(i) Valve key extensions shall be provided and installed on all buried plug valves when the top of the valve nut is greater than 12 inches below the top of the valve box. The extension stem shall be 316 SS, constructed so that when connected to the valve the extension stem shall be vertical.

(j) Electric motor actuators where required, as shown on the Contract Drawings, or as specified shall be furnished and installed in accordance with Part 2.4, Electric Motor Actuators, of this Specification for actuator types and specifications.

(k) For buried and submerged applications, the valve assembly shall be furnished with a sealed enclosure and 316 SS bolting hardware.

(l) Where buried valves are shown on the Contract Drawings to be provided with extended bonnet and handwheel actuator, the handwheel actuator shall be equipped with a 2-inch square nut for operation with a portable electric motor drive.

(m) Shop Painting: Interior ferrous metal surfaces of the valves except finished or bearing surfaces and the plug, shall be shop painted with three coats of a compliance-confirmed two component coal tar epoxy coating applied in accordance with the manufacturer's recommendations. Painting system shall consist of two prime coats at 4 dry mils per coat, and one finish coat at 10 dry mils. Exterior surfaces of the valve and operator shall be shop painted as specified under Part 2.9, Painting, of this Specification.

(2) Valve Number - V16

(a) Type of Valve: Eccentric plug valve.

(b) Type of Service: Water, sewage, sludge (buried, where shown or specified).

(c) Type of end connection: Flanged, threaded, mechanical joint or grooved.

(d) Size (inches): 1 - 60.

(e) Rating and Description: 125 lb, cast iron body conforming to ASTM A126-04, Class B, non-lubricated eccentric type, resilient neoprene faced plugs, or a replaceable resilient seat in the body, welded-in 90 percent nickel alloy, or Monel conforming to ASTM B127-98, bolted bonnets, replaceable stainless steel sleeve-type bearings in the upper and lower journals in conformance with applicable sections of AWWA C 504-06and AWWA C507-05, and multiple Vring shaft seals, externally adjustable, replaceable without removing the bonnet or actuator from the valve, repackable under pressure and shall comply with applicable sections of AWWA C 504-06and AWWA C507-05. Valves shall have a valve port area of a minimum 80 percent of the full pipe area.

(f) Manufacturer and Product: Provide the following: DeZurik Series 100, Victualic Vic-Plug Valve, Style 365, sizes 3 to 14 inches, grooved, or compliance-confirmed equal.

(3) Valve Number - V17

(a) Type of Valve: Three-way plug valve.

(b) Type of Service: Sewage, sludge.

(c) Type of end connection: Flanged, mechanical joint, or grooved.

(d) Size (inches): 3 - 16.

(e) Rating and Description: Cast iron body, resilient plug, stainless steel bearings, single style plug, Buna Vee packing, and neoprene plug facing.

(4) Valve Number - V18 - V33 (NOT USED).

D. Mud Valves (NOT USED):

(1) General:

(a) Valves shall be either rising stem or nonrising stem as shown or specified. Furnish rising stem valves with manual operated floorstands and nonrising stem valves with an indicating floor stand.

(b) Manual Operated Floor Stands:

(1) Manual operation shall be by crank or handwheel operated floorstand.

(2) Handwheel operated type shall be without gear reduction. Crankoperated type will have either a single or double gear reduction as required.

(3) Stands shall operate the valves under the specified operating head with not greater than a 40pound pull on the crank.

(4) All components shall be totally enclosed in a cast iron weatherproof housing. Provide positive mechanical seals to exclude moisture and dirt and prevent leakage of lubricant out of the unit.

(5) Provide lubricating fittings for all gears and bearings.

(6) Stands shall include a cast iron pedestal designed to position the input shaft approximately 36 inches above the operating floor. An arrow with the word "OPEN" shall be permanently attached or cast on the floorstand indicating the direction of rotation to open the valve.

(7) Cranks shall be cast iron with a revolving brass grip. Handwheels shall be cast iron or fabricated steel designed for rough treatment and minimum weight. Cranks and handwheels shall be removable.

(8) Furnish rising stems with a clear plastic pipe stem cover with valve position markings on the pipe.

(c) Anchor Bolts and Fasteners: Anchor bolts, nuts and other fasteners furnished for connection of the floorstands and stem guides to the concrete structure or concrete base pads and all stud bolts and nuts for connection of the valves to pipe flanges shall be in accordance with Part 2.1, Materials, of this Specification, and shall be of ample size and strength for the purpose intended. Anchor bolts shall be 316 SS hooked, and provided for direct embedment during placement of concrete.

(d) Shop Painting: Cast iron and steel surfaces of the valve and appurtenances shall be shop painted as specified under Part 2.9, Painting, of this Specification.

(2) Valve Number - V34

(a) Type of Valve: Mud valve.

(b) Type of Service: Water, sewage.

(c) Type of end connection: Flanged.

(d) Size (inches): 3 - 24.

(e) Rating and Description: Cast iron body, bronze mounted, Type 303 or 304 SS extension stem, cast iron stem guides, bronze bushed and mounted on cast iron brackets. Guides shall be adjustable in two directions and spaced so that stems have a maximum unsupported length of 84 inches and a L/R ratio less than 200. Rising or nonrising stem as shown on Contract Drawings.

(f) Manufacturer and Product: Provide one of the following: Mueller A25600, Clow F-3075, Waterman MV-12, or compliance-confirmed equal.

(3) Valve Number - V35 - V45 (NOT USED).

E. Ball Valves - PVC, CPVC, or PVDF:

(1) General:

(a) Ball valves on PVC piping shall be manufactured of polyvinyl chloride (PVC), chlorinated PVC (CPVC) or polyvinylidene fluoride (PVDF) material as shown or as specified. PVC shall be Type 1, Grade 1 in accordance with ASTM D1784-07, and shall be dark grey in color. CPVC shall be Type 4, Grade 1.

(b) Electric actuators where required, as shown on the Contract Drawings, or as specified herein shall be furnished and installed in accordance with Part 2.4, Electric Motor Actuators, of this Specification.

(2) Valve Number - V46

(a) Type of Valve: Ball valve.

(b) Type of Service: Sewage, water, chemical solutions.

(c) Type of end connection: True union threaded, flanged, or solvent weld.

(d) Size (inches): 1/2 - 6.

(e) Rating and Description: 150 lb, PVC, CPVC or PVDF (where indicated) body, Teflon seats, true union, and Viton O-ring seals. Valve shall provide for 100% flow waterway and quarter turn operation.

(f) Manufacturer: Provide products as manufactured by one of the following: Hayward MFG. Co., Chemtrol TU Series, GF Plastics Systems, Inc., Asahi/ America, or compliance-confirmed equal.

(3) Valve Number - V47

(a) Type of Valve: Ball valve.

(b) Type of Service: Sewage, water, chemical solutions.

(c) Type of end connection: True union threaded, solvent weld, or flanged.

(d) Size (inches): 1/2 - 6.

(e) Rating and Description: 150 lb, at 30ºF to 120ºF, PVC body, Teflon seats, and Viton O-ring seals. Valve shall provide for 100% flow waterway and quarter turn operation.

(f) Manufacturer and Product: Provide one of the following: Asahi/America Duo-Bloc Series, Hayward Manufacturing Co., or compliance-confirmed equal.

(4) Valve Number - V48

(a) Type of Valve: Three-way ball valve.

(b) Type of Service: Water, sewage.

(c) Type of end connection: True union threaded, flanged or solvent weld.

(d) Size (inches): 1/2 - 4.

(e) Rating and Description: 150 lb, PVC body, teflon seats, and Viton O-ring seals. Valve shall provide for 100% flow waterway and quarter turn operation.

(5) Valve Number - V49

(a) Type of Valve: Ball valve.

(b) Type of Service: Sewage, water, air, chemical solutions.

(c) Type of end connection: Single union threaded, flanged or solvent weld.

(d) Size (inches): 1/4 - 4.

(e) Rating and Description: 150 lbs, PVC or CPVC (where indicated) body, teflon seats, single union, and Viton O-ring seals.

(6) Valve Number - V50

(a) Type of Valve: Ball valve.

(b) Type of Service: Mixed chemical solutions.

(c) Type of end connection: Flanged.

(d) Size (inches): 6.

(e) Rating and Description: 150 psi; PTFE ball seal; EPDM body seal; PVC body.

(7) Valve Number - V51 - V64 (NOT USED).

F. Ball Valves - Miscellaneous:

(1) Valve Number - V65

(a) Type of Valve: Ball valve.

(b) Type of Service: Sewage, sludge.

(c) Type of end connection: Threaded.

(d) Size (inches): 1/2 - 2.

(e) Rating and Description: 150 lb, 316 SS body, full port double seal.

(2) Valve Number - V66

(a) Type of Valve: Three-way ball valve.

(b) Type of Service: Air.

(c) Type of end connection: Threaded.

(d) Size (inches): 1/4.

(e) Rating and Description: 316 SS body, TFE seats.

(3) Valve Number - V67

(a) Type of Valve: Ball valve.

(b) Type of Service: Water, air.

(c) Type of end connection: Threaded.

(d) Size (inches): 1/4 - 2.

(e) Rating and Description: 720 psi, brass body with stainless steel trim, full port, two-piece bar stock, and reinforced teflon seats and seals.

(4) Valve Number - V68

(a) Type of Valve: Ball valve.

(b) Type of Service: Water.

(c) Type of end connection: Threaded.

(d) Size (inches): 1/2 - 3.

(e) Rating and Description: Brass body, bronze ball and stem with 316 SS trim, TFE seats and seals, and quarter turn operation.

(5) Valve Number - V69

(a) Type of Valve: Ball valve.

(b) Type of Service: Water.

(c) Type of end connection: Flanged.

(d) Size (inches): 4.

(e) Rating and Description: Class 300, carbon steel body, full port, carbon steel ball and stem, TFE seat and gasket, and lever operated.

(6) Valve Number - V70

(a) Type of Valve: Chlorine ball valve.

(b) Type of Service: Chlorine (liquid and gas).

(c) Type of end connection: Threaded.

(d) Size (inches): 1, 2.

(e) Rating and Description: Valves and appurtenances shall conform to all requirements of the Chlorine Institute, including all mounting requirements.

(7) Valve Number - V71

(a) Type of Valve: V-port ball valve.

(b) Type of Service: Sewage, sludge.

(c) Type of end connection: Flanged.

(d) Size (inches): 1 - 12 (full port), 14 - 20 (standard port).

(e) Rating and Description: Carbon steel body, 316 SS No. 12 satellite seat and ball, segmented V-port ball, 316 SS shaft, ceramic filled PTFE bearings, ANSI Class 150 solid seat design, infinite position lever with adjustable memory stop or enclosed sealed handwheel actuator with corrosion resistant bearings and adjustable open-close position stops as indicated on the Contract Drawings.

(8) Valve Number - V72

(a) Type of Valve: Automatic control shut-off valve.

(b) Type of Service: Chlorine.

(c) Type of end connection: Threaded.

(d) Size (inches): 1.

(e) Rating and Description: Integrally mounted, electric powered, spring return actuator, valve shall close on power failure, NEMA 4X enclosure, counter-clockwise spring return rotation, and pressure rating of 300 psig.

(f) Manufacturer and Product: Provide one of the following: Mark Controls, Corp. Marpac No. CSC32508RTY, Raymond Control Systems Surepower II, or compliance-confirmed equal.

(9) Valve Number - V73 - V88 (NOT USED).

G. Check Valves - Liquid Service:

(1) General:

(a) Check valves shall absolutely prevent the return of water back through the valve when the upstream pressure decreases below the downstream pressure. The valve shall be tight seating.

(b) Unless otherwise shown or specified, valves shall have flanged ends conforming to ASME / ANSI B16.11 (2005), 1, Class 125.

(c) Valves 3 inches in diameter or larger unless otherwise specified or otherwise shown shall be furnished with lever and spring and conform to ANSI/AWWA C508-01, as to materials and pressure ratings.

(d) Provide a NEMA 4X non-metallic or 316 SS limit switch on each pump discharge check valve as shown or as specified. Switch shall be factory-mounted to the valve body via tapped, threaded connections integral to the valve body. The switch armature shall be field adjustable and shall be engaged by the swing arm on the check valve when the arm is set in the full closed position. Contacts shall be DPDT rated at 5A, 250V minimum.

(e) Assembly shall be suitable to be mounted on an outside weight and lever swing check valve without modification of the valve or piping, and shall provide proper signals to permit the control system to function as described above without causing false pump cutout and alarm indications, when properly adjusted.

(f) The Contractor shall make all necessary field adjustments to actuate the limit switch to provide the specified functional features.

(g) Provide limit switches as manufactured by one of the following: Square D, General Electric, MicroSwitch Division of Honeywell, or compliance-confirmed equal.

(h) Shop Painting: Interior metal surfaces of cast iron valves except finished or bearing surfaces shall be shop painted with three coats of a compliance-confirmed two component coal tar epoxy coating applied in accordance with the manufacturer's recommendations. Painting system shall consist of two prime coats at 4 dry mils per coat, and one finish coat at 10 dry mils. Exterior surfaces of the valves shall be shop painted as specified under Part 2.9, Painting, of this Specification.

(2) Valve Number - V89

(a) Type of Valve: Swing check valve.

(b) Type of Service: Water, sewage.

(c) Type of end connection: Flanged.

(d) Size (inches): 2 - 30.

(e) Rating and Description: 125 lb., cast iron body and disc, ASTM D126-87(2006), Class B, lever arm and weight, and bolted cap. Pressure ratings of 175 psi at 70ºF (2" - 12") and 150 psi at 70ºF (14" - 20").

(f) Manufacturer and Product: Provide one of the following: APCO 6000LW, Stockham G-931, American Darling 50, M&H Style 159, or compliance-confirmed equal.

(3) Valve Number - V90

(a) Type of Valve: Check valve.

(b) Type of Service: Sewage.

(c) Type of end connection: Flanged.

(d) Size (inches): 1 - 20.

(e) Rating and Description: 125 lb., ductile iron body, EPDM rubber check sleeve, and port area of 100 percent of mating pipe port area.

(4) Valve Number - V91

(a) Type of Valve: Wafer swing check valve.

(b) Type of Service: Water.

(c) Type of end connection: Flanged.

(d) Size (inches): 2 - 4.

(e) Rating and Description: 125 lb., cast iron body, stainless steel seat, spring assisted to close and closure shall be positive and drip tight, and bronze bushing.

(f) Manufacturer and Product: Provide one of the following: Prince Series 12G, Cla-Val Co. Model 501, or compliance-confirmed equal.

(5) Valve Number - V92

(a) Type of Valve: Swing check valve.

(b) Type of Service: Water.

(c) Type of end connection: Threaded, flanged.

(d) Size (inches): 1/4 - 2.

(e) Rating and Description: Class 125, bronze body and cap, Buna-N disc, brass disc holder, nut, and washer, bronze hinge with brass hinge pin, beryllium copper retaining ring.

(6) Valve Number - V93 - V107 (NOT USED).

H. Check Valves - Air or Hydraulic Cushioned Type:

(1) General:

(a) Air cushioned swing check valves shall permit flow in only one direction and close tightly without slamming when its discharge side pressure exceeds its inlet pressure. Unless otherwise shown or specified, valves shall have flanged ends conforming to ASME / ANSI B16.11 (2005), Class 125.

Valve shall have a hinge shaft located completely above the waterway, and shall be of 18-8 SS with the disc arm and counterweight arm keyed thereon. Hinge shaft packing gland shall be adjustable packing gland design employing a compression type packing. Simple O-ring shaft seals will not be accepted.

Valve shall be tight seating when closed, and provide a full equivalent pipe area when open fully. Seating shall be by a resilient field replacement ring on the valve disc contacting a bronze seat ring in the valve body.

Provide an external adjustable counterweight to initiate valve closure, and an air cushion chamber mounted externally to dampen valve closure due to counter weight action. The air cushion chamber shall be of all bronze or bronze and stainless steel, and shall be field adjustable.

(b) Hydraulic cushioned, controlled closing swing check valves shall open smoothly on the start-up of pump and close at a controlled rate of speed for the final predetermined portion of its stroke, following the pump shut-down. Unless otherwise shown or specified, valves shall have flanged ends conforming to ASME / ANSI B16.11 (2005), Class 125.

Valve shall have a hinge shaft located completely above the waterway, and shall be of 18-8 SS with the disc arm and counterweight arm keyed thereon. Hinge shaft packing gland shall be adjustable packing gland design employing a compression type packing. Simple O-ring shaft seals will not be accepted.

Valve shall be tight seating when closed, and provide a full equivalent pipe are when open fully. Seating shall be by a resilient field replacement ring on the valve disc contacting a bronze seat ring in the valve body.

Provide an external adjustable counter weight cushioning device that shall control the valve closure by way of the interchange of oil to and from an oil reservoir. The use of air or gas pressurized oil reservoir shall not be accepted. The oil plunger assembly shall be rigidly attached to the valve body by shoulder bolts or dowel pins.

(3) Valve Number - V108

(a) Type of Valve: Air cushioned swing check valve.

(b) Type of Service: Water, sewage.

(c) Type of end connection: Flanged.

(d) Size (inches): 2 - 42.

(e) Rating and Description: 125 lbs, cast iron body, renewable resilient seat ring, bronze seat ring, non-corrosive shaft for weight and lever attachment, full flow area, cleanout access, closure adjustment, and adjustable air cushioning.

(f) Manufacturer and Product: Provide the following: Golden-Anderson Industries, Inc., Figure No. 25-D, APCO Series 6000, or compliance-confirmed equal.

(4) Valve Number - V109 - V119 (NOT USED).

(5) Valve Number - V120

(a) Type of Valve: Hydraulic cushioned, controlled closing swing check valve.

(b) Type of Service: Water, sewage.

(c) Type of end connection: Flanged.

(d) Size (inches): 2 - 16.

(e) Rating and Description: 125 lbs, cast iron body, renewable resilient seat ring, bronze seat ring, non-corrosive shaft for weight and lever attachment, full flow area, flush port, adjustable final closing speed, and adjustable cushion closing stroke.

(f) Manufacturer and Product: Provide the following: Golden-Anderson Industries, Inc., Figure No. 25-DXH, APCO Series 6000, 2" - 16" 6000B, 10" - 66", or compliance-confirmed equal.

(6) Valve Number - V121 - V131 (NOT USED).

I. Check Valves - PVC:

(1) General:

(a) PVC check valves shall be self-contained, straight-through design of polyvinyl chloride (PVC), Type 1, Grade 1 conforming to ASTM D1784-07.

(b) Unless otherwise shown or specified valves shall have flanged ends conforming to ASME / ANSI B16.11 (2005), Class 125.

(c) PVC check valves shall be used for all liquid chemical feed systems unless otherwise shown or specified.

(2) Valve Number - V132

(a) Type of Valve: PVC check valve.

(b) Type of Service: Corrosive chemical.

(c) Type of end connection: Screwed (male-thread), flanged.

(d) Size (inches): 1 - 8.

(e) Rating and Description: ANSI Class 150, PVC, CPVC (where indicated) body, full port flow, flexible elastomer seal. Pressure ratings of 150 psi at 70ºF (1" - 3"), 100 psi at 70ºF (4" - 6"), and 70 psi at 70ºF (8").

(3) Valve Number - V133

(a) Type of Valve: Y-check valve.

(b) Type of Service: Water, chemical.

(c) Type of end connection: Solvent weld.

(d) Size (inches): 1/2 - 3.

(e) Rating and Description: 150 lb, PVC body, EPDM seals, weighted seat, horizontal and vertical mounting, and threaded bonnet with metal pin.

(4) Valve Number - V134

(a) Type of Valve: Ball check valve.

(b) Type of Service: Water, chemical.

(c) Type of end connection: True union, threaded and socket.

(d) Size (inches): 1/4 - 3.

(e) Rating and Description: PVC, CPVC, PVDF, rated 150 psi at 75ºF, full port, elastomer ball seal; Viton sealing seat.

(5) Valve Number - V136

(a) Type of Valve: PVC swing check valve.

(b) Type of Service: Sump discharge.

(c) Type of end connection: Flanged.

(d) Size (inches): 3/4 - 8.

(e) Rating and Description: PVC body and bonnet with EPDM gasket seals and seats. The disc, swing arm, and top flange bolts shall be PVC. Provide external lever arm and counterweight. A removable, bolted, top flange shall provide top-entry to the internals of the valve. The bolts, nuts and washers for the pipe flanges shall be 316 SS.

(f) The pressure rating at 70ºF shall be 150 psig for 3" and smaller; 100 psig for 4" - 6"; 70 psig for 8".

(7) Valve Number - V137 - V149 (NOT USED).

J. Check Valves - Air Service Double Door Type:

(1) General:

(a) Double door check valves shall be suitable for air service up to 250ºF.

(b) Valves shall absolutely prevent the return of air back through the valve when the inlet pressure decreases below the delivery pressure.

(c) Valve shall be tight seating and operate without hammer or shock.

(d) Valve shall be suitable for mounting between flanges furnished with ASME / ANSI B16.11 (2005), Class 125 drilling.

(e) Valves 5 inches and larger shall be fitted with a lifting hook for installation purposes.

(f) The check valve doors shall be spring loaded, normally closed, by means of one or more heavy duty Type 316 SS torsion springs. Flow from the compressor shall cause the doors to open and upon compressor shut-down, the torsion spring will shut the doors before reverse flow starts and at a point of zero velocity, for non-slam closure.

(2) Valve Number - V150

(a) Type of Valve: Double door check valve.

(b) Type of Service: General air service.

(c) Type of end connection: Wafer.

(d) Size (inches): 2 - 48.

(e) Rating and Description: 125 lbs, cast iron body with flat face ends, aluminum bronze double doors, 316 stainless hinge shaft and stop shaft, one or more heavy duty 316 SS torsion springs, and Buna-N seals.

(3) Valve Number - V151

(a) Type of Valve: Double door check valve.

(b) Type of Service: Process Air - Blower Discharge.

(c) Type of end connection: Wafer type, flat faced.

(d) Size (inches): 24.

(e) Rating: 125 lbs.

(f) Description: Cast iron body, with aluminum double doors, 316 SS hinge shaft and stop shaft, and 316 SS spring. Sealing materials shall be EPDM rated for continuous duty at 300ºF.

(g) Pressure Loss: Air pressure loss at 12,500 scfm shall not exceed 0.02 psig.

(h) Differential Pressure: Valves shall open fully against a minimum differential pressure of 0.5 psig.

(i) Mounting: Install valve with hinge shaft in the vertical position.

(4) Valve Number - V152 - V161 (NOT USED).

K. Check Valves - Air Service:

(1) Valve Number - V162

(a) Type of Valve: Check valve.

(b) Type of Service: Air.

(c) Type of end connection: Threaded.

(d) Size (inches): 1/2.

(e) Rating and Description: 316 SS body, and Viton O-ring seat.

(2) Valve Number - V163

(a) Type of Valve: Check valve.

(b) Type of Service: Air.

(c) Type of end connection: Threaded.

(d) Size (inches): 1/4 - 2.

(e) Rating and Description: 125 lb, bronze body, Buna-N disc, brass hinge pin and nut, and bronze cap. Pressure rating of 200 psi at -20°F + 150°F.

(3) Valve Number - V164 - V196 (NOT USED).

L. Butterfly Valves:

(1) General:

(a) Butterfly valves shall conform to the requirements of AWWA C 504-06, Class 150B designed for a maximum flow velocity of 16 feet per second unless otherwise specified. Butterfly valve bodies shall be short laying length, fabricated from cast iron with integrallycast hubs for shaft bearings. Valve ends shall be as required by valve location on plan.

(b) Valve discs shall be ASTM A48/48M-03, Class 40 cast iron, or ASTM A436-84, Type 1 alloy cast iron. All keys and pins used to secure the valve disc to the shaft shall be of Type 316 SS construction.

(c) All other pins and fasteners employed in the disc assembly shall be of 316 SS.

(d) Shafts shall be turned, ground, polished and fabricated from Type 316 SS. The shafts shall be of one piece construction and designed for a factor of safety of not less than five for the rated shutoff pressure and the maximum torque required. Connection of the valve disc to the shaft shall be suitable for the service conditions specified. The outboard end of the shafts shall be permanently marked to show the disc position in relation to the shaft.

(e) Seats shall be natural or synthetic rubber designed to provide bubble tight closure at the pressure class specified. The mating surfaces for valve seats shall be nichrome. Design of the seats shall permit the valve to remain in a closed position with full unbalanced pressure on either side of the disc without bulge or water/air penetration. No metal to metal seating surfaces shall be allowed.

(f) Valves shall be bubble tight at rated pressures with flow in either direction.

(g) Bearings shall be selflubricating sleeve type. Thrust bearings shall be provided to keep the disc centered regardless of valve position. Thrust bearings which utilize a ferrous metal bearing surface in direct rubbing contact with an opposing ferrous metal surface will not be acceptable. The valve shaft seals for buried valves shall be split adjusting "V" type packing or of the "O" ring type contained in a removable bronze cartridge.

(h) The use of a stop or lug cast integrally with or mechanically secured to the body for the purpose of limiting disc travel by means of direct contact or interference with the valve disc in either the open or closed position will not be acceptable.

(i) Manually operated valves shall be equipped with an enclosed worm gear drive and nut, handwheel or chain wheel operator.

(j) Enclosed worm gear operators shall have a gear ratio designed not to exceed 80 pounds pull to meet the required operator torque.

(k) Gears shall be permanently lubricated and totally enclosed.

(l) Operators shall be designed to hold the valve disc in any intermediate position without creeping or fluttering.

(m) Adjustable stops shall be provided to prevent over-travel in either position, to withstand a pull of 200 pounds.

(n) Stops shall be enclosed within the operator housing and be capable of absorbing the full operator torque with minimum safety factor of 5.

(o) Operators shall be equipped with a direct coupled indicator.

(p) Valves regardless of size, if installed with the operating wheel more than five feet above the operating floor, shall be provided with a chainwheel, sprocket, and aluminum chain. The chain shall extend to three feet above the operating floor.

(q) Valve operator shall be designed to fully close or fully open the valve in a minimum of 30 turns. Valves shall open counterclockwise, and shall have a position indicator.

(r) Traveling nut operators are not allowed.

(s) Shop Painting: Interior metal surfaces of cast iron valves except finished or bearing surfaces shall be shop painted with three coats of a compliance-confirmed two component coal tar epoxy coating applied in accordance with the manufacturer's recommendations. Painting system shall consist of two prime coats at 4 dry mils per coat, and one finish coat at 10 dry mils. Exterior surfaces of the valves shall be shop painted as specified under Part 2.9, Painting, of this Specification.

(t) Electric motor actuators where required, as shown on the Contract Drawings or as specified shall be furnished and installed in accordance with Part 2.4, Electric Motor Actuators, of this Specification.

(u) Buried manually operated butterfly valves shall be furnished with a valve box, a 2-inch square operating nut and position indicator. The operating nut shall be positioned vertically on top of the valve. The top of the operating nut shall be a maximum 12 inches below the top of the valve box. The position indicator shall be mounted on top of the valve.

(v) Valve key extensions shall be provided and installed on all buried butterfly valves when the top of the valve nut is greater than 12 inches below the top of the valve box. The extension stem shall be 316 SS, constructed so that when connected to the valve the extension stem shall be vertical.

(w) For the 24-inch butterfly valves furnished on the Intermediate Mixed Liquor Return (IMLR) piping, each valve shall be furnished with an extension bonnet, extension stem, and manual worm-gear actuator as shown on the Contract Drawings. Extension stem and bonnet shall be 304 SS. The top face of the actuator shall be drilled and tapped to receive a non-metallic valve position monitor. The position monitor shaft shall be keyed to mate with the output shaft of the butterfly valve. The gradations marked on the indicator shall indicate valve position in increments of percent of travel of 5 percent from 0% (FULL CLOSED) to 100% (FULL OPEN). All connecting hardware shall be 316 SS.

(x) Valve Number - V197.

(y) Type of Valve: Butterfly.

(z) Type of Service: Air, water.

(aa) Type of end connection: Flanged, monoflanged, lug wafer, wafer.

(ab) Size (inches): 2 - 20.

(ac) Rating and Description: Class 150 B, ASTM A126-04, AWWA C 504-06, cast iron body, stainless steel or Monel keys and pins to secure disc, 316 SS shafts, and cast iron or ductile iron disc with Ni seating edge and rubber seats on body.

(ad) Manufacturer and Product: Provide one of the following: Pratt Valve Company 2FII, Monoflange MK II, BIF-654, DeZurik, or compliance-confirmed equal.

(3) Valve Number - V198

(a) Type of Valve: Butterfly.

(b) Type of Service: Air, water.

(c) Type of end connection: Grooved.

(d) Size (inches): 2 - 12.

(e) Rating and Description: Ductile iron body and disc, EPDM coated dual seal disc, stainless steel shaft and trim, and bubble tight to 300 psi.

(4) Valve Number - V200

(a) Type of Valve: Butterfly.

(b) Type of Service: Air.

(c) Type of end connection: Grooved.

(d) Size (inches): 1-1/2 - 6.

(e) Rating and Description: EPDM rubber-lined plated ductile iron, malleable housing and aluminum bronze disc.

(5) Valve Number - V202

(a) Type of Valve: Butterfly.

(b) Type of Service: Primary Effluent, buried.

(c) Type of end connection: Flanged.

(d) Size (inches): 24 - 30.

(e) Rating and Description: Class 150B, ASTM A126-04, AWWA C504-06, heavy duty cast iron, stainless steel or Monel keys and pins to secure disc, 316 SS shafts, cast iron or ductile iron disc with Ni seating edge and Buna N rubber seats on body, and buried service operators.

(f) Special Coatings: All internal and external valve surfaces except for seating shall be furnished with factory applied polyamide-cured coal tar epoxy primer (8 mils dry thickness) and a polyamide-cured coal tar epoxy finish coat (8 mils dry thickness).

(6) Valve Number - V203

(a) Type of Valve: Butterfly.

(b) Type of Service: City water.

(c) Reference Standard: AWWA C504.

(d) Size (inches): 16.

(e) Class: 150B.

(f) Rating: 150 psi.

(g) Type of End Connection: Flanged both sides.

(h) Operation: Wrench nut in valve box.

(i) Connections: Valves shall be flange connected to tees and elbows. Connecting pieces shall be used to transition from flanged valves to mechanical joint pipe connections.

(j) Description: Valves shall be rubber-seated.

(k) Manufacturer and Product: Provide one of the following, or other manufacturer listed on the City of San Diego Water Utilities Department Approved Materials list: Mueller Co., Catalog No. B-3211-6, M&H, Style 4500, or compliance-confirmed equal.

(9) Valve Number - V204

(a) Type of Valve: Butterfly.

(b) Type of Service: Process Air - Activated Sludge Treatment.

(c) Type of End Connection: Wafer body for installation between two flanges.

(d) Size (inches): 6 - 24.

(e) Rating: 150 psi pressure.

(f) Body Construction: Cast iron, ASTM A48/48M-03.

(g) Shaft and Disc: 316 SS.

(h) Bearings: TFE-coated stainless steel.

(i) Resilient Seat: EPDM with a temperature rating of 250ºF.

(j) Manufacturer and Product: Provide the following:

(1) DeZurik Fig. 632

(2) Brey Series 30 – 31

(3) Compliance-confirmed equal.

(k) Valve Body Coating: Contractor shall provide a fusion-bonded, shop applied coating for the outer surfaces of the valve body according to SPECIFICATION 09 91 00, Painting, Paragraph 2.4.P.

(l) Operator: Hand Lever lockable, hand wheel or Electric Type B1 Quarter-turn modulating as shown on drawings.

(7) Valve Number - V205

(a) Type of Valve: Butterfly.

(b) Type of Service: Sewage.

(c) Type of End Connection: Flanged.

(d) Size (inches): 18 - 42.

(e) Rating and Description: Class 150B, ASTM A126-04, AWWA C504-06, cast iron body, stainless steel or Monel keys and pins to secure disc or ductile iron disc with Ni seating edge and rubber seats on body. Valve shall fail in last position.

(8) Valve Number - V206 - V216 (NOT USED).

M. Knife Gate Valves:

(1) Valve Number - V217

(a) Type of Valve: Knife gate valve.

(b) Type of Service: Sludge.

(c) Type of end connection: Tapped flange.

(d) Size (inches): 2 - 12.

(e) Rating and Description: 150 psi working pressure, cast iron body, 304 SS wetted parts, resilient seated-round port, and 316 SS seat ring, and handwheel operator.

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