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Is it normal for water to leak out of the pressure relief valve on a hot water tank?
Wiki User
∙ 13y ago
YES, as a hot water tank should NOT have a relief valve it should have a combination of Temperature and Pressure relief valve.
Normally a T&P is SET @150 PSI and Or 210 Deg F.
If the valve leaks this is a sign of an impending disaster such as a pressure vessel exploding.
A professional will check to make sure (NBBI, ASME, LMP,)
1- The pressure is not exceeding the high limits of the system
2- Make sure the aqua stat is actually functioning
3- The pressure temperature relationship of the system is not exceeded
Wiki User
∙ 13y ago
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Can a hot water heater pressure relief valve drain into a sewer line?
Not directly.
What is the difference between pressure relief valve and pressure reducing valve?
nothing, its just terminology why A pressure relief valve is a safety device to prevent over pressure in such things as compressor receivers. A pressure reducing valve drops the pressure to the requirements of the user or tool. Such as a demand valve on scuba gear.
Installation of the drain pipe for the temperature and pressure relief valve?
It is the drain for the Temperature and Pressure relief valve (T&P valve, or TPV). It's function is to release pressure from the water heater if the pressure or temperature of the water exceeds preset limits. Do not cap off the pipe, or remove the T&P valve or alter it in any way. Doing so could cause serious injury or death! If you notice water dripping or running from the pipe, call a plumber to check it.
Why does a boiler explode?
Low water level along with both a defective high limit safety and pressure relief valve.
What is pressure valve?
There are various kinds of pressure valves. Perhaps the 2 most common in homes are the PRV (pressure regulating valve) which is on most incoming water pipes from a city supply. This valve limits the pressure entering the home system, bringing it down from city mains pressure. The second is on every hot water tank, and this is a relief valve, which will open up if the pressure in the tank becomes too high and vent the excess water down the drain.
Why is the relief valve on your water well going off?
Excessive pressure
What is the purpose of geyser pressure valve?
The purpose of a pressure relief valve in a geyser is to release the pressure created inside due to evaporation of water.
Can a hot water heater pressure relief valve drain into a sewer line?
Not directly.
Why do you have to install pressure relief valve on solar water heater?
If you don't, the pressure may fracture your pipes or joints.
Do old water heaters require a pop off valve?
All water heaters should have a pressure relief valve, otherwise they could burst.
How do you rectify leaking warm water from the overflow tube on your hot water tank?
Replace the pressure relief valve.
What will cause a marine air compressor high pressure relief valve to lift?
Excessive pressure in the compressor, after the first stage (or how ever many stages there are). Excessive pressure could be caused by shut/ blocked discharge valve. There will also be a relief valve fitted to the intercooler, should one of the tubes burst. This would let air into the water side and suddenly increase the pressure in the intercooler, so a relief valve is fitted.
Why does water come out from the relief valve so often?
no water should be coming out of the safety valve , only if water over a certain temp orthan creates a pressure if water coming out and water not steaming than replace valve
What is the difference between pressure relief valve and pressure reducing valve?
nothing, its just terminology why A pressure relief valve is a safety device to prevent over pressure in such things as compressor receivers. A pressure reducing valve drops the pressure to the requirements of the user or tool. Such as a demand valve on scuba gear.
Installation of the drain pipe for the temperature and pressure relief valve?
It is the drain for the Temperature and Pressure relief valve (T&P valve, or TPV). It's function is to release pressure from the water heater if the pressure or temperature of the water exceeds preset limits. Do not cap off the pipe, or remove the T&P valve or alter it in any way. Doing so could cause serious injury or death! If you notice water dripping or running from the pipe, call a plumber to check it.
What is the normal water pressure before the pressure reduction valve?
There is no such thing as normal water pressure, it is changing all the time due to demand in the water distribution system. If a PRV is needed then the pressure is higher upstream than is wanted.
Is it necessary to have both an expansion tank and a pressure relief valve on a hot water heater?
You must have a pressure relief valve. I believe it is code nationally. I don't think you can buy a hot water tank w/o one. Expansion tank needed also if water meter has backflow preventer, check with local water authority if it does.
