ASSE (Plumbing) 1012 – Performance Requirements for Backflow Preventers with an Intermediate Atmospheric Vent
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.
Product Details
- Published:
- 2021
- ANSI:
- ANSI Approved
- Number of Pages:
- 26
- File Size:
- 1 file , 1.3 MB
- Note:
- This product is unavailable in Ukraine, Russia, Belarus
Related products
-
ASSE (Plumbing) 7000
$36.00Add to cartProfessional Qualifications Standard for Residential Potable Water Fire Sprinkler System Installers & Inspectors for One- and Two-Family Dwellings (ASSE/IAPMO/ANSI Series 7000 – 2020)
Published by Publication Date Number of Pages ASSE 2020 32 -
ASSE (Plumbing) Series 12000
$36.00Add to cartASSE/IAPMO/ANSI Series 12000-2021 Professional Qualifications Standard for Water Management and Infection Control Risk Assessment for Building Systems
Published by Publication Date Number of Pages ASSE 2021 60 -
ASSE (Plumbing) LEC 2004
$27.00Add to cartListing Evaluation Criteria for Drinking Water Treatment Systems Using Air as a Source
Published by Publication Date Number of Pages ASSE 2019 20 -
ASSE (Plumbing) Series 9000
$36.00Add to cartProfessional Qualifications Standard for Firestop Systems and Smoke-Limiting Materials for Piping Systems (ASSE/IAPMO/ANSI Series 9000)
Published by Publication Date Number of Pages ASSE 09/01/2015 24
