09
Jun
How Vacuum Breakers Work. One may also ask is vacuum breaker same as backflow preventer. The breaker is made up of a variety of parts. The atmospheric vacuum breaker consists of a check valve member and an air vent that is normally closed when the device is pressurized. This prevents contamination should the public drinking water systems pressure drop.
The purpose of a vacuum breaker is to stop back siphonage. It has a very simple construction in comparison to an air circuit breaker or oil circuit breaker. How Does a Vacuum Breaker Work. It consists of fixed contact moving contact and arc shield mounted inside a vacuum chamber vacuum interrupter. Vacuum breakers or vacuum relief regulators also use a spring-loaded diaphragm mechanism but the pressure is controlled through the outlet port instead of the inlet port. How It Works.
This prevents contamination should the public drinking water systems pressure drop.
A vacuum breaker is an attachment commonly placed on a bibcock valve or toilet or urinal flush valve that prevents water from being siphoned backward into the public drinking water system. A pressure vacuum breaker consists of a check device or check valve and an air inlet that is vented to the atmosphere open-air. The separation of contacts and interruption of arc occurs in a vacuum chamber in the VCB which is known as vacuum interrupter. This prevents contamination should the public drinking water systems pressure drop. This prevents contamination should the public drinking water systems pressure drop. The check valve member air vent and hose are all implemented to fight possible water contamination.