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Can you hook up and rely on the Temperature Pressure Relief valve for a new electric hot water heater to a drain or do you really need an expansion tank?
Wiki User
∙ 14y ago
Depends on your code. If you have a PRV or, as you would say, pressure reducing valve on your water supply to your house, you need an expansion tank. If your pressure is above 80 psi, you need a PRV AND an expansion tank.
Wiki User
∙ 14y ago
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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.
What is difference between pressure reducing valve and pressure relief valve?
pressure relief valve relief the excess pressure which is developed in the syatem, while pressure reducing valve reduces the pressure and supply it to the system.
Are electric pressure cookers safe to use?
Yes, they are. The term "pressure" seems to scare some people. The amount of pressure in a pressure cooker is only about 15 pounds. This, combined with the built-in relief valves, makes them safe to use.
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.
How do you know the bladder in a hot water heating system is good?
If the bladder is bad in your expansion tank the tank will fill with water. When this happens the pressure in your furnace will exceed 30lbs and your pressure relief valve will blow off.
How do adjust hydraulic pressure on a 1085 Massey tractor?
If your pressure relief valve is adjustable, you increase the pressure relief setting.
What is leak base?
Leak base is simply the cause of the following:> Faulty temperature and pressure of relief valve.> T&P leak due to overheating and too much pressure> Corrosion
How does a rupture disk differ from a fusible plug?
A rupture disk (disc) is a pressure relief device that reliefs pressure when the pressure inside the protected equipment exceeds the set pressure. A fusible plug reliefs pressure when the plug is weakened due to high temperature.
Is it normal for water to leak out of the pressure relief valve on a hot water tank?
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
Can a broken thermostat on an oil boiler cause hot water to flow out through the expansion pipe?
Yes, the water is getting too hot and is blowing out the pressure relief valve through the expansion tank. You should change this immediately.I don't agree:I am assuming that by expansion pipe, you are referring to the pipe connected to the pressure relief valve - A broken Thermostat won't cause the relief valve to activate. A broken thermostat will cause the boiler to either run or not run as desired. However, a broken (or incorrectly set) aquastat can cause the boiler to run too hot and cause the valve to activate, but if it is chronic, it could be a defective or dirty relief valve, defective expansion tank, a problem with the pressure reducing valve on the domestic feed or (as was my problem) an internal leak in my tankless coil.What is your boiler's pressure gauge reading and what does the Temp Gauge read on a call for heat (High Limit on and off)? Also, put a bucket under the pipe and carefully burp the relief valve to clear out any debris that might be causing the leak.
What you mean by cold differential set pressure of a safety valve?
cold differential test pressure -The inlet static pressure at which a pressure relief valve is adjusted to open on the test stand. This test pressure includes corrections for service conditions of superimposed back pressure and/or temperature.
Where is the oil pressure relief valve on an LS2?
The high oil pressure relief valve is located in the oil pump
