如何更换热水器泄压（ TP）的阀
一个传统的储水热水器有一个小阀门到其坦克，旨在减轻内置了蒸汽压力，如果热水器过热- othewise ，压力可能会导致热水器爆炸搞砸。
该阀已包括温度和压力释放阀，泄压阀， T和P阀，或几个名字， -在最短的形式 - TP的阀门。由于总磷阀变老，他们可以开始滴水或泄漏，可能需要更换。
虽然建议您定期测试，解除它的小杠杆，以确保它是该设备的工作，做了一个旧阀门这可能会导致它泄漏。考虑到这一点，随时准备切断水源供应，热水器，取代TP的阀门，如果发生这种情况时，您测试。
以下是如何取代一个TP阀：
1。关掉煤气或冷水来的电热水器。
2。流失的水从水箱水位以下，直到阀门。要做到这一点，在任何运行热水水龙头，淋浴或浴缸。
3。提高对阀门的杠杆，透露任何多余的压力。松开阀门用扳手转动它反时针方向，然后慢慢地将其删除。如果水开始倒了，它早在螺杆和排水更多的水从水箱。 注：水可能很烫，除非你允许它冷却的时候了！
4。把管螺纹磁带上的TP阀的线程，然后旋紧，顺时针方向转动。用扳手拧紧了。
5。打开冷水和天然气或电力供应回，并为燃气热水器，重新点燃的灯，如果必要的试验。
How to Replace a Water Heater Pressure Relief (TP) Valve
A conventional storage water heater has a small valve screwed into its tank that is designed to relieve built-up steam pressure if the water heater overheats--othewise, the pressure could cause the water heater to explode.
This valve has several names, including temperature and pressure relief valve, pressure relief valve, T&P valve, or--in its shortest form--TP valve. As TP valves get old, they can begin to drip or leak and may need to be replaced.
Though it is recommended that you periodically test this device by lifting its little lever to make sure it is working, doing this with an old valve can cause it to leak. With this in mind, be ready to shut off the water supply to the water heater and replace the TP valve if this happens when you test.
Here is how to replace a TP valve:
1. Shut off the cold water and gas or electricity coming to the water heater.
2. Drain the water from the tank until the water level is below the valve. To do this, run hot water at any faucet, shower, or bathtub.
3. Raise the lever on the valve to release any excess pressure. Loosen the valve by turning it counter-clockwise with a wrench, and then remove it slowly. If water begins to pour out, screw it back in and drain more water from the tank. Note: The water may be hot unless you've allowed time for it to cool!
4. Put pipe-thread tape on the threads of the TP valve and then screw it in, turning clockwise. Tighten it with a wrench.
5. Turn the cold water supply and gas or electricity back on and, for a gas water heater, relight the pilot light if necessary.
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