Section 15106 BALL VALVES

Section 15106

BALL VALVES

PART 1 – GENERAL

1.1 THE REQUIREMENT

A. The Work of this Section includes providing ball valves with epoxy coating, operators, and accessories.

1.2 REFERENCE SPECIFICATIONS, CODES AND STANDARDS

A. Comply with the reference specifications of Section 01090.

B. Comply with the current provisions of the following Codes and Standards.

1. Commercial Standards

AWWA C507 Standard for Ball Valves, Sizes 6 in. through 48 in.

1.3 QUALITY ASSURANCE

A. Valves shall be tested in compliance with AWWA C507 and Section 15100.

PART 2 – PRODUCTS

2.1 BALL VALVES (6-INCH AND LARGER)

A. Construction: Except as otherwise indicated, ball valves in sizes 6-inches and larger shall comply with AWWA C507, with cast iron, ductile iron, or cast steel bodies, support legs or pads, flanged ends, and shall be designed for velocities up to 35 fps, temperatures up to 125 degrees F, and design pressure of 150 psi. The balls shall be fabricated with cast iron, ductile iron, or cast steel, and designed for shaft- or trunnion- mounting, with tight shut-off, single or double seat, and full bore. The valves shall be rubber- or metal-seated, with stainless steel or monel shafts, and shall include at least one thrust bearing.

B. Coating: Corrosive ferrous surfaces of valves which will be in contact with water (exclusive of flange faces) shall be epoxy coated complying with Section 09800, Protective Coating.

2.2 BALL VALVES (4-INCH AND SMALLER)

A. General Requirements: Except as otherwise indicated, ball valves in sizes up to 4 inches shall have manual operators with lever or handwheel.

B. Body: Ball valves up to 1-1/2 inches in size shall have bronze or forged brass 2- or 3- piece bodies with ends threaded and shall be designed for a pressure rating of not less than 300 psi. Valves 2-inch to 4-inch in size shall have bronze forged brass or steel 2- or

3-piece bodies with flanged ends and shall be designed for a pressure rating of 150 psi.

C. Balls: The balls shall be fabricated of solid brass, chrome plated bronze, or Type 316 stainless steel with full openings.

D. Stems: The valve stems shall be of the blow-out proof design and fabricated of bronze or

Type 316 stainless steel and shall include reinforced Teflon seats. E. Seats: The valve seats shall be of Teflon or Buna-N.

F. Coating: Corrosive ferrous surfaces of valves which will be in contact with water (exclusive of flange faces) shall be epoxy coated complying with Section 09800, Protective Coating.

2.3 PLASTIC BALL VALVES

A. General Requirements: Plastic ball valves designed for use with corrosive fluids shall be fabricated of PVC, CPVC, or PVDF, as recommended by the manufacturer for the use in the service indicated. Valves shall have manual operators except as otherwise indicated.

B. Construction: Plastic ball valves shall have union ends or flanged ends conforming to ANSI B16.5, class 150. Balls shall have full size ports and Teflon seats. Body seals, union O-ring seals, and stem seals shall be Viton. Valves shall be suitable for a maximum working of 150 psi at 73 degrees F for PVC.

2.4 MANUFACTURERS

A. Ball valves shall be manufactured by one of the following or equal:

1. Ball valves (6-inch and larger)

a. Henry Pratt Company b. Willamette Valve, Inc.

c. Grove Valve and Regulator Company

2. Ball valves (4-inch and smaller)

a. Jamesbury Corporation

b. Lunkenheimer Flow Control c. William Powell Company

3. Plastic ball valves

a. ASAHI-America b. NIBCO

c. Spears

PART 3 – EXECUTION

3.1 INSTALLATION

A. Installation shall be in accordance with the manufacturer’s instructions and Section

15100.

END OF SECTION