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Check Valves

Series 600 Swing Check Valves - Lever and Spring

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

Swing check valves shall be Waterous Series 600 as manufactured by AMERICAN. Check valves shall be manufactured from gray iron meeting or exceeding ASTM A126, Grade B.

Check valves shall comply with ANSI/AWWA C508, latest revision, and include the following features:

Check valves shall be designed with full waterway opening per Type I of MSS SP-71.

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

Disassembly of valve internals shall require no special tools other than standard socket wrenches.

Check valve disc and clapper arm assembly shall be assembled using corrosion-resistant bearings, bushings and washers to reduce wear and increase service life.

Clapper arm shall be constructed of high-strength bronze.

Clapper arm shaft shall be stainless steel.

Disc shall be constructed of bronze with a rubber seal recessed into the disc face to provide a positive seal against the mating bronze body seat ring.

In applications where slam surge may occur, check valves should be furnished with outside lever and weight or spring.

Note: Bodies for valves without outside shafts cannot be converted to accept outside shafts.

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