Section 15115 MISCELLANEOUS VALVES

Section 15115

MISCELLANEOUS VALVES

PART 1 - GENERAL

1.1 THE REQUIREMENT

A. The CONTRACTOR shall furnish and install miscellaneous valves as shown and as specified herein, complete and operable including accessories and, where designated, operators, in accordance with the requirements of the Contract Documents.

1.2 RELATED WORK SPECIFIED ELSEWHERE

A. The requirements of the following sections and divisions apply to the Work of this section. Other sections and divisions of the Specifications, not referenced below, shall also apply to the extent required for proper performance of this Work.

1. Section 15100, Valves, General

2. Section 15101, Valve Operators

3. Section 09800, Protective Coating

1.3 REFERENCE SPECIFICATIONS, CODES, AND STANDARDS

A. All Work specified herein shall conform to or exceed the applicable requirements of the referenced portions of the following publications to the extent that the provisions thereof are not in conflict with other provisions of these Specifications.

B. Comply with the applicable editions of the following codes, regulations and standards.

1. Codes and Regulations:

CCR California Code of Regulations, Title 17, Public

Health

2. Industry Standards:

AWWA C510 Double Check Valve Backflow Prevention

Assembly

AWWA C511 Reduced-Pressure Principle Backflow

Prevention Assembly

A-A-59326 Federal Specifications, Coupling Halves, Quick- Disconnect, Cam-Locking Type

FCCCHR Manual of Cross-Connection Control

3. Other Standards:

ANSI American National Standards Institute

C. Comply with the applicable reference Specifications as directed in the General

Requirements and Additional General Requirements.

1.4 CONTRACTOR SUBMITTALS

A. Submittals shall be made in accordance with the General Requirements, Supplemental General Requirements and as specified herein.

B. Submittals shall be made in accordance with Section 15100, Valves, General.

1.5 QUALITY ASSURANCE A. General:

1. All valves shall be tested in accordance with manufacturer's recommendation and applicable AWWA/ANSI specifications.

1.6 WARRANTY

A. Guarantees and Warranty shall be furnished in accordance with “Warranty” (CONTRACTOR’s Guarantee) of the General Conditions and Section 15100, Valves, General.

PART 2 - PRODUCTS

2.1 AIR-VACUUM AND AIR-RELEASE VALVES

A. Air and Vacuum Valves – Sewage: Air and vacuum valves shall be capable of venting large quantities of air while pipelines are being filled, and allowing air to re-enter while pipelines are being drained. Sewage air release valves shall have cast-iron bodies and stainless steel floats and linkages, and shall be furnished with a 2-inch screwed-inlet fitting, 1-inch screwed outlet, 2-inch shutoff valve, back-flush valve with quick disconnect coupling and back-flushing hose, and blowoff valve. Valves shall have a working pressure of at least 150 psig. Seat washers and gaskets shall be of a material insuring water tightness with a minimum of maintenance.

1. Manufacturers and models, Or Equal:

a. Apco Willamette, APCO Series 401.

b. Crispin Multiplex Manufacturing Company, SB Series.

B. Air-Release Valves – Sewage: Sewage air-release valves shall have a 2-inch screwed inlet fitting, 1/4-inch orifice, and shall discharge not less than 45 cubic feet of free air per minute at 150 pounds per inch. . They shall have cast-iron bodies and stainless steel floats and linkages, and shall be furnished with a 2-inch screwed inlet fitting, 1-inch screwed outlet, 2-inch shutoff valve, back-flush valve with quick disconnect coupling and flushing hose, and blowoff valve. Valves shall have a working pressure of at least 150 psig.

1. Manufacturers and models, Or Equal:

a. Apco Willamette, APCO Series 400.

b. Crispin Multiplex Manufacturing Company, S Series.

C. Air-Release Valves – Water: Air-release valves shall vent accumulating air while system is in service and under pressure. Air release valves shall have a 2-inch screwed inlet fitting and 1/4-inch orifice. Valve bodies shall be cast iron and the valve shall have a working pressure of at least 300 psig. Floats and seats shall be 300 series stainless steel; linkage shall be stainless steel and orifice button shall be Buna-N.

1. Manufacturers and models, Or Equal:

a. Apco Willamette, APCO Series 200A.

b. Crispin Multiplex Manufacturing Company, PL Series. D. Air-Release Valves – Hot Water:

1. Manufacturers, Or Equal:

a. Bell and Gossett Company, Division of ITT, No. 87 or No. 7. b. Hoffman Specialty Manufacturing Corporation, No. 78.

E. Air-Release and Vacuum Breaker – Steam:

1. Manufacturers, Or Equal:

a. Maid-O’Mist, Model No. 1.

b. Hoffman Specialty Manufacturing Corporation, No. 75 Automatic Air Vent.

2.2 BACKFLOW PREVENTER VALVES

A. General: Backflow preventers shall work on the reduced pressure principle in accordance with AWWA C510and AWWA C511, and comply with the requirements of California Code Of Regulations, Title 17, and the Manual of Cross-Connection Control by FCCCHR (University of Southern California, Foundation of Cross-Connection Control and Hydraulic Research). They shall consist of two independently operating spring-loaded check valves check valves, automatic differential pressure relief valve, drain valves, and shut-off valves. Operation shall be completely automatic. The body material shall be bronze or cast iron for a working pressure of not less than 150 pounds per inch, with bronze or stainless steel trim. Drain lines with air gaps shall be provided.

B. The CONTRACTOR shall be responsible to have backflow preventers certified by the proper agencies. Copies of all test reports and certifications shall be given to the ENGINEER. Valves shall be complete with all trim and fittings necessary for inspection and certification.

C. Manufacturers, Or Equal:

1. Cla-Val Company, Model RP

2. Hersey Valves Products, Inc., Model FRP-II or 6CM

2.3 SMALL PRESSURE REDUCING VALVES

A. General: Water pressure reducing valves 2 inches or smaller shall be of the spring- loaded-diaphragm type with a minimum pressure rating of 250 pounds per inch, with bronze body, nickel alloy or stainless steel seat, and threaded ends. Each valve shall be furnished with built-in or separate strainer and union ends.

B. Limit Switches: Provide limit switches where shown on the Drawings. Limit switches shall be manufactured of corrosion resistant material and meet the area classification shown on the Drawings. Limit switches shall be factory wired and manufactured by Eaton, Allen Bradley, or Equal.

C. Manufacturers, Or Equal:

1. Wilkins Regulator (A Division of Zurn Industries), Model 600.

2. Bell & Gossett, ITT Corporation, Model B-38.

3. Watts Regulator Company, No. 223.

2.4 LARGE PRESSURE REDUCING VALVES

A. Unless otherwise noted, valves larger than 2 inches shall be double port with a stainless steel V-ported or contoured plug, reinforced diaphragm, and stainless steel stem. Valves shall be suitable for a maximum inlet pressure of 250 pounds per inch.

B. Limit Switches: Provide limit switches where shown on the Drawings. Limit switches shall be manufactured of corrosion resistant material and meet the area classification shown on the Drawings. Limit switches shall be factory wired and manufactured by Eaton, Allen Bradley, or Equal.

C. Manufacturers, Or Equal:

1. Emerson Process Management/Fisher, Type 92W.

2. Cla-Val Company, Model 590.

2.5 AIR PRESSURE REGULATING VALVES

A. Air pressure regulating valves shall be internal relief suitable for an upstream pressure of 250 pounds per inch, and shall have an integral filter that will remove all particles of greater diameter than 0.0015 inch or 40 microns.

B. All pressure regulators shall have a pressure gauge installed integrally with the valve or immediately downstream near the regulator with a range as indicated above for the regulator.

C. Pressure regulators are shown on the Drawings with the output pressure specified for each individual valve. The range shall be as listed below for each outlet pressure:

Output Pressure (pounds per inch)	Range (pounds per inch)
20	1 – 30
30	1 – 60
40	1 – 60
100	1 – 150

D. Manufacturers, Or Equal:

1. Emerson Process Management/Fisher, Type 67AFR.

2. Masoneilan/Dresser, Model 77.

2.6 TEMPERATURE AND PRESSURE RELIEF VALVES

A. Valve Construction: Temperature and pressure relief valves for cold and hot water, steam, and air service, unless otherwise shown or specified, shall have a minimum pressure rating of 250 pounds per inch, bronze, steel, or stainless steel bodies, adjustable spring action, screwed or flanged connections, and trim to suit individual applications. They shall be set for each specific condition.

B. Manufacturers, Or Equal:

1. Watts Regulator Company.

2. A.W. Cash Valve Mfg. Corp.

3. Emerson Process Management/Fisher.

4. Wilkins Regulator (A Division of Zurn Industries).

2.7 SOLENOID VALVES A. Size 1/2" to 2”

1. Solenoid valves shall be of the size, type, and class shown and shall be designed for not less than 150 pounds per inch water-working pressure.

2. Valves for water, air, or gas service shall have a brass or bronze body with screwed ends and resilient poppet-type seats and discs for tight shutoff, stainless steel trim and spring, and shall be suitable for the use indicated. Seals shall be Teflon or other resilient material best suited for the temperature and fluid handled. Where called for on the Contract Documents, manual operators shall be provided.

3. Solenoid valves in corrosive environment shall have Type 316 stainless steel bodies. For chemicals and all corrosive fluids, solenoid valves with Teflon bodies and springs or other suitable materials shall be used.

4. Enclosures shall be explosion proof and watertight. All solenoid coils shall be Class F molded coils and rated for continuous duty. For electrical characteristics, see electrical Drawings or Specifications.

5. Two-way valves shall have orifices the same size or larger than the valve and shall be ASCO EF8210 Series, Skinner/Parker, Or Equal.

6. Three-way valves shall be universal operation and shall be ASCO EF8320, Skinner/Parker 7000 Series, Or Equal.

7. Four-way valves shall have orifices not less than 1/4 inch in diameter and shall be ASCO EF8344, Skinner/Parker V9 Series, Or Equal.

B. Size 3" to 6”

1. The solenoid control valve shall be self-contained unit consisting of a diaphragm- operated, packless main valve, and a packless three-way solenoid pilot valve. The valve shall open wide and close drip tight. The three-way solenoid pilot alternately applies pressure to or exhausts pressure from the diaphragm chamber of the main valve which in turn causes the main valve to open or close.

2. Main Valve:

a. The valve shall be hydraulically operated single diaphragm-actuated.

b. The valve shall consist of three major components: the body with seat installed, the cover with bearing installed, and the diaphragm assembly.

c. The diaphragm assembly shall be the only moving part and shall form a sealed chamber in the upper portion of the valve, separating operating pressure from line pressure.

d. Packing glands and/or stuffing boxes are not permitted and there shall be no pistons operating the main valve or pilot controls.

3. No separate chambers shall be allowed between the main valve cover and body. Valve body and cover shall be ductile iron. No fabrication or welding shall be used in the manufacturing process.

4. The valve shall contain a Buna-N disc forming a tight seal against a single removable seat insert.

5. No O-ring type discs shall be permitted as the seating surface. The disc retainer shall be of a sturdy one-piece design capable of withstanding opening and closing shocks.

6. The diaphragm assembly shall be the only moving part and shall form a sealed chamber in the upper portion of the valve, separating operating pressure from line pressure. The diaphragm must withstand a Mullins Burst Test of a minimum of 600 psi per layer and shall be cycle tested 100,000 times to insure longevity.

7. The main valve seat and the stem bearing in the valve cover shall be removable. The cover bearing and shall be threaded into the cover and body.

8. Pilot Control:

a. The pilot control shall be a three-way solenoid valve controlled by an external electrical power source.

b. The pilot system shall include strainers, shut-off cocks and manual operator. Opening and closing speed control needle valves shall be utilized so as to prevent surging of the system on start-up and shut-down.

c. Solenoid shall have a NEMA IV enclosure.

9. Solenoid valves 2 inches to 6 inches shall be manufactured by:

a. Cla-Val, Model 136-01 or 636-01.

b. Ames Fluid Control Systems, Model 930 Series. c. Or Equal.

2.8 GAUGE COCKS

A. Gauge cocks shall be furnished and installed between all pressure gauges and point of connection and at the diaphragm seal flushing connection. Gauge cocks shall be ball valves by Swagelok, Parker Or Equal. They shall be made of Type 316 stainless steel and temperature rated for application.

2.9 AIR COCKS

A. Air cocks shall be installed in instrument air piping where shown on the Drawings and shall be made of Type 316 stainless steel, Model SS-42S4 manufactured by Swagelok,

7122G48 manufactured by Hoke, Inc. 7122 Series, Or Equal.

2.10 AIR BLEEDER COCKS

A. Air bleeder cocks shall be installed at all high points in liquid pipe systems and shall be of the size indicated on the Contract Documents and minimum of 1 inch. Air bleeder cocks shall be ball valves in accordance with Section 15106, Ball Valves.

2.11 GLOBE AND ANGLE VALVES

A. Globe valves smaller than 2-1/2 inches shall have Teflon seats and screwed ends. Globe valves larger than 2-1/2 inches shall have flanged ends.

B. In general, all valves 1/2 inch and smaller that are used on water, air, sewage, or sludge lines shall be globe valves.

C. Angle valves may be used in place of globe valves, wherever convenient. D. Manufacturers, Or Equal:

1. Crane, 17TF.

2. Nibco, T-375.

2.12 HOSE VALVES

A. Hose valves shall be 1-inch globe or angle valves as specified above. The valves shall be supplied with an approved hose adapter. Adapters shall be bronze, male-male

1-inch pipe thread conforming to A-A-59326 quick coupling.

B. Adapter manufacturers, Or Equal:

1. Camlok.

2. Boss-lock.

3. Kemlok.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Install valves according to the applicable requirements of Section 15100, Valves, General.

B. Air Vents shall be installed at high points in piping systems. Blow-off shall be piped to drain.

C. Backflow preventers shall be installed in all potable water lines entering structures and where otherwise indicated on the Drawings.

D. All valves shall be installed in accordance with the manufacturer's printed recommendations.

E. Air pressure regulators shall have a pressure gauge installed integrally with the valve or immediately downstream with a range equal to the output range of the regulator.

F. All backflow preventers, as well as air and vacuum release valves, shall have piped outlets to the nearest acceptable drain, firmly supported, and installed in such a way as to avoid splashing and wetting of floors.

G. Field testing of valves shall be performed in accordance with manufacturer's recommendations to demonstrate that the valve operates under field conditions in a manner consistent with the design of the system.

H. All field testing shall be witnessed by the ENGINEER and be subject to ENGINEER’s acceptance.

3.2 IDENTIFICATION

A. Valves shall be identified with labels or tags as specified in Section 15030, Piping

Identification Systems.

B. Vents shall be designated with a mark number as listed in the Piping Specialties

Schedule.