Hot Water Heater Check Valve

Without two check valves the system will not work properly.

Hot water heater check valve.

95 get it as soon as sat sep 26. Water heaters come equipped with a temperature and pressure relief valve also known as a tprv. 1 some municipalities require a check valve to prevent the flow of water from the house back to main. There are at least 2 possible reasons for a check valve on the inlet of a hot water heater.

This valve allows water or steam to escape from the water heater if the temperature or pressure gets. Water heater temperature and pressure relief valves or t p valves are a safety feature found on all tank water heaters. Amazon s choice for hot water check valve sharkbite u2016 0000lfa 3 4 inch x 3 4 inch brass check valve push to connect copper pex cpvc 4 8 out of 5 stars 138. Once a check valve is installed the hot water system becomes a closed system causing thermal expansion.

2 a check valve is used when a recurculating system is used to prevent long waits for hot water at fixtures far from the heater. A heat trap with the piping should be installed if the hot water leaving the water heater travels upward and or horizontal. A standard water heater does not require a check valve. Some water heaters have a check valve located at the cold water inlet to the heater but since you re able to fill the heater and see it draining a check valve at this location is probably still viable.

A faulty check valve at the hot outlet could also reduce minimize or prevent adequate pressure and flow from reaching the hot faucets. Now a expansion tank is required. 3 4 in lead free tankless water heater valve set female pipe thread hot and cold valve set no spring check 150 psi relief valve 44 95 44.