Is the T and P valve leaking in your system?
T&P valve.
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The Tank Is Old The Drain Valve Is Loose There’s Too Much Pressure The T&P Valve Is Malfunctioning The Inlet and Outlet Connections Are Loose There’s a Problem with the Internal Shell Sediment Has Created Cracks The Storage Tank Is Cracked The Anode Rod Has Corroded
First past the post system
You have to shut the fuel supply gas / oil or electric or indirect and isolate the tank from the system using isolation valves and use the blow /drain down valve to lower the water level below the T&P and then unscrew it and replace it with a T&P with an AGA / ASME rating GREATER then the input in BTU's but in no case less then 3/4"
Temperature and pressureUnlike a "safety" valve Vapor such as steam /air or a "relief" valve liquid a T&P is unique as it does both
Water pump shaft loose? Water pump leaking? Water circulating in coolant system?
A T valve in a water line system is used to control the flow of water by diverting it in different directions. It allows for the regulation of water flow to different areas or appliances, providing flexibility and efficiency in the water distribution system.
I was charged $464.00 and I thought that was a bit rich to replace a T&P Valve today 26/09/11
Depends on the height of the hearter of course
The T and P valve is the temperature and pressure valve that is used on hot water tanks as a safety device. The temperature rating is up to 210 degrees F and a water pressure up to 150 psig. (pound-force per square inch gauge) before the safety valve trips to relieve water and lower the pressure inside the tank. When the safety valve trips it allows cooler water to enter the tank to cool off the hot water that tripped the valve in the first place. The valve is usually located on the outflow of the tank as the temperature probe has to be located within 6 inches from the top of the tank where the water temperature will be the hottest.
p --> q and q --> p are not equivalent p --> q and q --> (not)p are equivalent The truth table shows this. pq p --> q q -->(not)p f f t t f t t t t f f f t t t t