Some equipment may have only a pressure relief valve with no temperature sensor. On a water pressure tank that's fine, but on water heaters and steam or hot water heating boilers such an installation is not safe and may not comply with building codes. This guide to relief valve inspection,...
with reduced volume of the first chamber, and in the case of pressure relief of the second chamber, the enveloping wall moves back, under the restoring force, into the normal position, in which the valve is closed, and in doing so sucks water out of the storage tank into the first chamb...
with reduced volume of the first chamber, and in the case of pressure relief of the second chamber, the enveloping wall moves back, under the restoring force, into the normal position, in which the valve is closed, and in doing so sucks water out of the storage tank into the first chamb...
us if there is obvious leakage, corrosion, or clogging of some automatic air separator devices, and fdor some automatic air purge valves, a simple step of opening a valve cap may be all that's needed to restore the valve to operation - or perhaps we close the cap to stop dripping ...
Check for water heater leaks around the T/P relief valve: Watch out: If you see water on the floor around the water heater and by inspection you cannot find any leaks in pipes or connections to the water heater itself, I suspect the problem is the tank, but another possibility to ...