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Valve Series Pressure regulating valve

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Valve Series Pressure regulating valve

Pressure regulating valve


Pressure regulating valve is mechanical type automatic pressure switch, it’s applicable to the excessive voltage protection for many kinds of high power air conditioner in the T3 condition. It is internal automatic pressure relief, no need to shut off to discharge pressure, which reduce the frequent restarting of compressor.


Fitted in by-pass line between compressor discharge and suction line in refrigeration or air conditioning units.
Senses excessive compressor discharge pressure and releases it through the bypass line to
the low pressure side to protect the compressor from overloading.
Reduces frequency of cut-in and cut-out of high pressure switch to keep the compressor operating.
A typical advantage is in the heating cycle of heat pump systems during spring or autumn, or when filter is clogged with foreign materials.

Technic parameter

Opening pressure1.5~3.6Mpa adjustable (factory default value 2.35±0.05Mpa)
Pressure difference of opening and resetting0.2MPa
Valve diameter:3mm
Refrigerant:CFC, HCFC and HFC refrigerants and oils

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