产品详情
·QRF134aW expansion valve is used to regulate the supply of liquid refrigerant in the evaporator
·The QRF134aW expansion valve has a bidirectional throttling function and is widely used in heat pumps and automotive air conditioning refrigeration systems
| Refrigerant | Model | Pressure Balance | Thread(Connection Size) | Nominal Refrigerating Capacity | |||
| Inlet | Outlet | Outside Balanced End | TR | KW | |||
| R134a | QRF134aW-2.5-3-4 | Outside Balanced End | 3/8SAE | 1/2SAE | 1/4SAE | 2.5 | 8 |
| QRF134aW-3.5-3-4 | 3.5 | 12 | |||||
| QRF134aW-4.5-5-6 | 5/8SAE | 3/4SAE | 4.5 | 17 | |||
| QRF134aW-7-5-6 | 7 | 24 | |||||
| QRF134aW-10-5-6 | 10 | 37 | |||||
·The working condition of nominal refrigerating capacity is: evaporating temperature 5℃; condensing temperature 35℃; superheating degree 3.5℃; supercooling degree 4℃
| Applicable Refrigerants: | R134a |
| Applicable Medium Temperature: | -30℃~+10℃ |
| Maximum Working Pressure: | 2.0MPa |
| Maximum Testing Pressure: | 3.0MPa |
| Adjustable Range of Superheat: | 2℃~8℃ |
· Capillary length of QRFW-type thermostatic expansion valve:1.5m in atandard; under special situation,it can be customized based on clients' requirements.
1、gas tank head piece; 2、dust cap; 3、valve body; 4、value element(1#～6#); 5、regulating spring; 6、adjustment nut; 7、adjustment seat; 8、valve stem; 9、valve bonnet; 10、O-type ring; 11、gasket; 12、gasket; 13、dust cap; 14、drive rod; 15、dust cap; 16、label; 17、nut; 18、bolt; 19、hoop
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