UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close

This is embarrasing..

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing..

An error occurred while processing the form. Please try again in a few minutes.

AWWA C520

Knife Gate Valves, Sizes 2 In. (50 mm) Through 96 In. (2,400 mm)

active, Most Current
Buy Now
Organization: AWWA
Publication Date: 24 January 2019
Status: active
Page Count: 36
scope:

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 minimum design pressure rating shall be 150 psig (1,034 kPa) for nominal sizes 2 to 24 in. (50 to 600 mm), and the minimum design pressure ratings for nominal sizes 30 to 96 in. (750 to 2,400 mm) shall be 25 psig (172 kPa), 75 psig (517 kPa), or 150 psig (1,034 kPa).

Purpose

The purpose of this standard is to provide minimum requirements for stainless steel and ductile-iron body knife gate valves with resilient and metal seats, including tapping knife gate valves, for use in water, wastewater, and reclaimed water systems, including materials, design, testing, rejection, marking, and shipping.

Document History

AWWA C520
January 24, 2019
Knife Gate Valves, Sizes 2 In. (50 mm) Through 96 In. (2,400 mm)
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...
June 8, 2014
Knife Gate Valves, Sizes 2 In. (50 mm) Through 96 In. (2,400 mm)
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...
June 20, 2010
Knife Gate Valves, Sizes 2 In. (50 mm) Through 96 In. (2,400 mm)
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...

References

Advertisement