relieve valve

基本解释

If the pressure builds up excessively, the pressure valve opens to relieve the pressure .
如果油箱内压力过高，则压力阀开启，以降低压力。
All relieve& purge valve shall be connected by a vent line leading away from the gas storage area.
所有减压阀都需要连接一条通出气体存藏区的排气管路。
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Before proceeding with the installation, close the main water supply valve, open a water faucet to relieve the house pressure and then close the faucet.
在安装热水器之前，关闭主供水阀门，打开水龙头将住宅内的水压释放掉，然后关闭水龙头。