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Brief introduction
1, RF type expansion valve is a traditional thermal expansion valve.
2, It is used for regulating the liquid refrigerant's supply qantity in evaporator.
3, It is suitable for the supply of the refrigerant in dry-type evaporator.
4, It can control automatically by the superheat degree of refrigerant.
5, It has two connecting format, including lamp base and welded junction.
6, The capillry's length of RF type expansion valve is a standard of 1.5 meters.
Technical parameters
1, Refrigerant: R22 , R502, R134A, R404A
2, Evaporative temperature: -25 to 15 °C
3, Valve port leaage: ≤ 0.1Mpa/10s
4,Adjustment range of superheat degree: 3.5 °C
5, Maximum test pressure: 1.8 Mpa
6, Maximum working pressure: low-pressure side: 1.8Mpa
high-pressure side: 3.0 Mpa
Type | Pressure balance | Port size | Nominal refrigerating capacity | |||
Entrance point | Exit point | RT | KW | Kcal/h | ||
RF22-0.5 | Inner equilibrium | 3/8 | 1/2 | 0.5 | 1.8 | 1500 |
RF22-1.0 | 0.8 | 2.8 | 2500 | |||
RF22-1.5 | 1.6 | 5.6 | 5000 | |||
RF22-2.0 | 2.0 | 7.0 | 6000 | |||
RF22-2.5 | 2.3 | 8.1 | 7000 | |||
RF22-3.0 | 2.8 | 10.0 | 8600 | |||
RF22-4.0 | 3.5 | 12.3 | 11000 | |||
RF22-5.0 | 7/8 | 6.5 | 22.9 | 19800 | ||
RFW22-3.0 | 3/8 | 1/2 | 2.8 | 10.0 | 8600 | |
RFW22-4.0 | 3.5 | 12.3 | 11000 | |||
RFW22-4.0 | 1/2 | 5/8 | 3.5 | 12.3 | 11000 | |
RFW22-4.5 | 3.5 | 12.3 | 10600 | |||
RFW22-5.0 | 6.5 | 22.9 | 19800 | |||
RF type expansion valve