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釋壓閥 Relief Valve

泵浦若因堵塞或管路上的閥類未開啟等因素，會造成壓力升高。當(dāng)這個異常壓力達(dá)到隔膜式釋壓閥所設(shè)定的壓力時，液體會由此閥回流，以達(dá)到保護(hù)泵浦及管路的目的。
It is to protect pumps from inadmissible excessive pressure.If the liquid reaches the preload pressure of the relief valve,the liquid flows through it to prevent pumps and pipes from damaged.