KVL 12 034L0043 Danfoss Type Crankcase Pressure Regulating Valve
A CPR or crankcase pressure regulator is nothing more than a pressure reducing valve. When installed on a compressor suction inlet and properly adjusted, the CPR will prevent the compressor suction pressure from ever rising above the CPR's setting. The CPR will help prevent refrigeration compressor from overloading during startup on refrigeration systems that may experience heavy load conditions such as a freezer after a defrost cycle.
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