|
Re: Water heater valve
Gregg,
A T&P relief valve has two modes of operation: Temperature and Pressure. The typical T&P for water heaters is set to release at either 210 degrees (temperature) OR 150 psi (pressure).
A pressure relief valve as in your photo is only set to relieve as a set pressure setting, maybe 80 psi. All depends on the setting of the valve.
All a pressure relief valve does is relieve the thermal build up of pressure, or the over pressure of a high pressure system, it offers no safety measure for a water heater, it just protects the plumbing system from failure (leaks) due to over pressure.
|