Thermostatic Expansion Air Conditioning Valve For Compressor Temperature Responsive Expansion Valves

Thermostatic Expansion Air Conditioning  Valve For Compressor Temperature Responsive Expansion Valves

 

Introduction

 

The expansion valves(liquid injection) are usually installed suction side of compressor in refrigeration system to protect the refrigeration system from too high discharge gas or oil temperature.

The capacities of the temperature responsive expansion valves(liquid injectin) are large and usually used for large refrigeration system.

 

Operation principle

 

When the discharge gas or oil temperature in refrigeration system is too high, the valve will open,Liquid refrigerant will be fed into the suction side and compression cavity after temperature drop through the valve,and then cool the moto coil and the mixture of refrigerant and oil,which makes the liquid refrigerant entering the evaporator in lower temperature.

 

Technical data

 

Max.working pressure: 3Mpa

Max.testing pressure: 3.5Mpa

 

Technical specification

 

Intermediate pressure (Pi) (MPa)	Operating temperature (tb) range (℃)	Connection Inlet×Outlet (in.)	Capillary length (m)
0.1	55→85	3/8×1/2 SAE	1
0.2	65→90
0.3	75→95
0.4	85→100
0.5	90→110
0.6	95→114
0.7	101→116
0.8	106→119
0.9	111→123

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Intermediate pressure (Pi) (MPa)	Operating temperature (tb)range(℃)	Connection Inlet×Outlet (in.)	Capillary length (m)
0.1	50→75	1/2×5/8 SAE	2
0.2	75→85
0.3	80→90
0.4	85→95
0.5	90→101
0.6	94→105
0.7	100→110
0.8	106→115
0.9	111→119