Pressure vacuum breaker
id:
pressure-vacuum-breaker-246-4615029
title:
Pressure vacuum breaker
text:
A pressure vacuum breaker (PVB) is a type of backflow prevention device, used to keep non-potable water from entering the water supply. A PVB is similar to an atmospheric vacuum breaker (AVB), except that the PVB contains a spring-loaded poppet. This makes it acceptable for applications that are high hazard or where valves are downstream. Pressure vacuum breakers must be protected from freezing when installed outdoors. PVBs usually have test cocks, to which specially-calibrated gauges are attach
brand slug:
wiki
category slug:
encyclopedia
description:
Backflow prevention device
original url:
https://en.wikipedia.org/wiki/Pressure_vacuum_breaker
date created:
date modified:
2023-10-24T20:20:02Z
main entity:
{"identifier":"Q16963157","url":"https://www.wikidata.org/entity/Q16963157"}
image:
fields total:
13
integrity:
14