2017年8月1日 · AWWA StandardSM®Air-Release, Air/Vacuum, and Combination Air Valves for Water and Wastewater ServiceEf f ective date Nov. 1, 2015.First edition approved by AWWA Board of Directors Jan. 26, 1992.This edition approved: June 7, 2015.Approved by American National Standards Institute: July 6, 2015.ANSI/AWWA C512-15 …

The valves are designed for use in water or wastewater systems with maximum design pressures of 300 psi (2,070 kPa [gauge]), liquid temperatures ranging from above freezing to a maximum of 125°F (52°C) and a liquid pH greater than 6 and less than 12.

AWWA C512 standard for air-release, air/vacuum, and combination air valves in waterworks. Includes requirements, testing, and delivery.

2015年6月7日 · This standard describes ½-in. (13-mm) through 6-in. (150-mm) air-release valves and ½-in. (13-mm) through 20-in. (500-mm) air/vacuum valves and combination air valves having gray cast-iron, ductile-iron, carbon steel, or stainless-steel bodies and covers.

The first edition of this standard, AWWA/ANSI C512, was approved by the AWWA Board of Directors on Jan. 26, 1992, the second edition on June 20, 1999, and the third edition on June 13, 2004.

本版C512的主要修订内容包括: 1.对标题和范围进行了修改，以包括废水处理用空气阀的注意事项和要求。 2.在适当的情况下，减少了与饮用水接触的材料的铅要求。

The valves are designed for use in water or wastewater systems with maximum design pressures of 300 psig (2,070 kPa [gauge]), liquid temperatures ranging from above freezing to a maximum of 125°F (52°C), and a liquid pH greater than 6 and less than 12.

Admits large inlet of air? The table above represents the general usage and applications for VSI’s various air release, air and vacuum, and combination air release valves and can be used to …

Air-Release, Air/Vacuum, and Combination Air Valves for Water and Wastewater Service. E昀ective date Nov. 1, 2015. First edition approved by AWWA Board of Directors Jan. 26, 1992. This edition approved: June 7, 2015. Approved by American National Standards Institute: July 6, 2015. ANSI/AWWAC512-15. (Revision of ANSI/AWWAC512-07) ii. AWWA Standard.

This standard describes 1/2-in. (13mm) through 6-in. (150mm) air-release valves and 1/2-in. (13-mm) through 20-in. (500-mm) air/vacuum and combination air valves having gray cast-iron or …