Knife gate valves are generally used for isolation of pipes in water and wastewater treatment plants.

This standard describes bonneted, bonnetless and one- and two-piece fabricated stainless steel and cast ductile-iron body knife gate valves with resilient or metal seats, including tapping knife gate valves, for use in water, wastewater, and reclaimed water systems with pH range from 6 to 12 and a temperature range from 33 F to 125 F (0.6 C to ...

ANSI/AWWA C520 does not address additives requirements. Thus, users of this standard should consult the appropriate state or local agency having jurisdiction in

2019年1月24日 · This standard describes bonneted, bonnetless, cast, and fabricated steel; stainless-steel; and cast ductile-iron body knife gate valves with resilient or metal seats, including tapping knife gate valves, for use in water, wastewater, and reclaimed water systems with a pH range from 6 to 12 and a temperature range from 33 to 125°F (0.6 to 52°C).

The EW model knife gate is a uni-directional lug type valve designed according to AWWA C520-14 for municipal and industrial service applications. The design of the body and seat assures non-clogging shutoff on suspended solids in industries such as:

This standard describes bonneted, bonnetless, cast, and fabricated steel; stainless-steel; and cast ductile-iron body knife gate valves with resilient or metal seats, including tapping knife gate valves, for use in water, wastewater, and reclaimed water systems with a pH range from 6 to 12 and a temperature range from 33° to 125°F (0.6° to ...

by the American Water Works Association (AWWA) in 2007, resulting in the formation of a standards committee. The first edition of C520 was approved by the AWWA Board

This standard describes bonneted, bonnetless, cast, and fabricated steel; stainless-steel; and cast ductile-iron body knife gate valves with resilient or metal seats, including tapping knife gate valves, for use in water, wastewater, and reclaimed water systems with a pH range from 6 to 12 and a temperature range from 33 F to 125 F (0.6 C to 52 C).

AWWA C 520 - 2024 Knife Gate Valves, Sizes 2 In. (50 mm) Through 96 In. (2,400 mm). Inform now!

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