Introduction

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 discharge pressure,which reduce the frequent restarting of compressor.

Feature

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 filler is clogged with foreign materials.

Technic parameter

Opening pressure：1.5-3.6Mpa adjustable （factory default valve 2.35±0.05Mpa）
Pressure difference of opening and resetting：≤0.2Mpa
Leakage：≤500ml/min
Value diameter：Ø3mm
Temperature：-30℃~+120℃
Refrigerant：CFC，HCFC and HFC refrigerants and oils