$22
ASSE (Plumbing) 1012-2021
2021
Performance Requirements for Backflow Preventers with an Intermediate Atmospheric Vent
- Format:
- Language(s) :
- Published :
- English
- 2021
Backflow preventers with intermediate atmospheric vent (herein referred to as the device) are installed in the plumbing system to prevent backflow into potable water supply lines when pressure is temporarily higher in the polluted part of the system than in the potable water piping. Devices covered by ASSE 1012-2021 have functional capabilities for preventing both backsiphonage and backpressure, and can operate under continuous or intermittent pressure conditions. These devices have two independently operating check valves separated by an intermediate chamber with a means for automatically venting it to the atmosphere and can be installed in the horizontal, vertical up, or vertical down orientations. The check valves are force loaded to a normally closed position and the venting means is force loaded to a normally open position.
| ASSE (Plumbing) 1012-2021 | |
|---|---|
| STANDARD INFO: | |
| Standard Name | ASSE (Plumbing) 1012-2021 |
| Scope | Performance Requirements for Backflow Preventers with an Intermediate Atmospheric Vent |
| Publisher | Engineering - American Society of Sanitary Engineering |
| Languages | English |
| State | |
| Publication Year | 2021 |
| Most recent Version | MOST RECENT |
| Whether to be replaced | |
| Addendum | |
| FILE INFO: | |
| ANSI | ANSI Approved |
| File Size | 1 file , 1.3 MB |
| Note | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages | 26 |
| Published | 2021 |
| ASSE (Plumbing) 1012-2021 | ||
|---|---|---|
| History | Publisher Year | |
| ASSE (Plumbing) 1012-2021 | 2021 | Current |
| ASSE (Plumbing) 1012-2009 | 2009 |
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