AS 4956:2017
Current
The latest, up-to-date edition.
Air valves for water supply
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27-03-2017
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This Standard specifies requirements for air valves for water systems. This Standard is applicable to valves rated at 600kPa to 6400kPa for sizes DN15 to DN400.
| Committee |
WS-022
|
| DocumentType |
Standard
|
| ISBN |
978-1-76035-700-9
|
| Pages |
31
|
| PublisherName |
Standards Australia
|
| Status |
Current
|
| Supersedes |
This Standard specifies requirements for metallic and plastics bodied PN 10, 12, 16, 25, 35 and 40 air valves for water supply. This Standard is applicable to valve sizes DN 15 to DN 250 that are suitable for, but not limited to, use in drinking water supplies, with a maximum operating temperature of 60°C (see Note 2).This Standard covers the following types of valves:(a) Large-orifice air valves.(b) Small-orifice air valves.(c) Double-orifice air valves.(d) Anti-slam air valves.(e) Anti-vacuum valves.NOTES: 1 Purchasing guidelines are given in Appendix B.2 Based upon a maximum water temperature of 40°C within the main and the air valve being located above ground exposed to sunlight.3 Alternative pressure classes are available and may be specified.
First published as AS 4956-2008.
This edition 2017.
Reissued incorporating Amendment No. 1 (June 2018).
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