AWWA C511-17(R21) Reduced-Pressure Principle Backflow Prevention Assembly P 28 p. 22

著者：American Water Works Association

【重要事項説明】

1.	手配先によって価格が異なります。
2.	納期遅延や入手不能となる場合がございます。
3.	海外のクリスマス休暇等、お正月等の長期休暇時期の発注は、納期遅延となる場合がございます。
4.	天候（国内・海外）により空港の発着・貨物受入不能の発生により納期遅延となる場合がございます。
5.	複数冊数のご注文の場合、分納となる場合がございます。
6.	美品のご指定は承りかねます。

手配先：国内手配先

• お届けまでの予想日数： 6週間～7週間
• 在庫数：
• 組合員価格：価格未定

内容の説明

This standard describes the reduced-pressure principle backflow prevention assembly for potable water applications. The assembly shall be capable of withstanding a working water pressure of at least 150 psi (1,034 kPa) without damage to working parts or impairment of function and for operation on hot- or cold-water lines. This standard describes hot- and cold-water reduced-pressure principle backflow prevention assemblies. Assemblies shall be designed to operate, at a minimum, at a temperature range of 33 DegreesF to 140 DegreesF (1 DegreesC to 60 DegreesC). Hot-water assemblies shall be designed to operate, at a minimum, in water at a temperature range of 33 DegreesF to 180 DegreesF (1 DegreesC to 82 DegreesC). A complete assembly consists of a mechanical, independently operating, hydraulically dependent relief valve located between two independently operating, internally loaded check valves that are located between two tightly closing resilient seated shutoff valves with four properly placed resilient-seated test cocks (see Sec. 4.3.1.3).

登録情報

商品コード：1034465803
出版社: 出版社不明
出版年月: 2022/02
ISBN-10: 1647170729
ISBN-13: 978-1-64717-072-1
出版国:
装丁: paper/Kt./br.
媒体: 冊子
ページ数: 28 p.
ジャンル: 土木環境システム