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Check Valves

Series 600 Swing Check Valves - Lever and Weight

AMERICAN’s Waterous Series 600 swing check valves are in full compliance with ANSI/AWWA C508. Configurations are available that are UL Listed.

Rated working pressure is 200 psig. These check valves are suitable for horizontal or vertical installation when the flow of water is in an upward direction.

Waterous Series 600 swing check valves feature sturdy iron body and bronze mounted construction. This design provides extensive use of corrosion-resistant materials in places where corrosion may be a problem.

Resilient Seated Disc

The disc is constructed of high-strength bronze with a rubber seal recessed into the disc to assure a positive seal even under low pressure.

Series 600 swing check valves are available in sizes 3" through 12" and are available with lever and spring or lever and weight for applications where rapid flow reversals may be encountered.

Corrosion Resistant

The clapper arm is made of high-strength bronze. The check valve disc and clapper arm assembly use corrosion-resistant bearings, bushings and washers to reduce wear and help assure long operating life.

Full Waterway

These check valves are designed to provide a “Full Waterway” per MSS SP-71, Type I. Swing check valves with Full Waterway, when fully open, have waterway cross-sectional area at any point that is at least equal to the area of a circle whose diameter is the nominal valve size.

Standard Features

  • Compliance with ANSI/AWWA C508

  • Certified to NSF/ANSI 61 and NSF/ANSI 372

  • Stainless steel clapper arm shaft

  • Full Waterway per Type I of MSS SP-71

  • Bronze clapper arm

  • Resilient seated disc

Optional Coatings

Series 600 valves are available with the interior and exterior of the valve coated with fusion-bonded epoxy in accordance with ANSI/AWWA C550.

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Specifications

AWWA C508 200 PSIG and UL Listed 175 PSIG

A: CONSTRUCTION

  1. Check valves shall be manufactured from gray iron meeting or exceeding ASTM A126 Grade B.

  2. Check valves are to comply with ANSI/AWWA C508, latest revision for use in water works service, and at a rated working pressure of 200 psig. Test pressure shall be at 400 psig. 

  3. Check valves shall be UL Listing, in applicable configurations, at a rated working pressure is 175 psig Check valves shall be Certified to NSF/ANSI 61 and NSF/ANSI 372.

  4. The disc on check valves 3 in. -12 in. shall be constructed of high-strength bronze. 

  5. Valve body shall exhibit a bronze seat ring threaded into the body.

  6. The clapper arm shall be made of high-strength bronze. 

  7. The check valve disc and clapper arm assembly shall use corrosion-resistant bearings, bushings, and washers to help reduce wear and increase operating life.

  8. Clapper arm shaft shall be made of 316 stainless steel.

B: DISC FEATURE

  1. Disc and clapper arm assembly shall be removable from the check valve body without having to remove the check valve from the pipeline.

  2. Disc shall be equipped with an O-ring seal and shall open to provide a full waterway design as defined by ANSI/AWWA C508 and a Type II full waterway, composition-to-metal seat, as defined by MSS SP-71.

C: COATINGS

  1. Check valves are available with an interior and exterior fusion-bond epoxy coating, in accordance with ANSI/AWWA C550.

D: USEAGE

  1. Valve to be designed for use in water and wastewater applications. Check valves equipped with lever and weight, or lever and spring, that can be used in a horizontal pipeline or in a vertical pipeline only when flow is in an upward direction. The orientation of the lever shall be field adjustable and must be positioned correctly for the installation.

E: MANUFACTURER

  1. Valves shall be equal to AMERICAN Flow Control’s Waterous Series 600 Swing Check Valve.

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