ERF Model ERF
·Model ERF/FRFW thermal expansion valves are used to adjust the liquid refrigerant supply volume to the evaporator and they are suitable to various refrigerants and different charging condition. It meets the requirements of the cold storage facility, ice maker and dehumidifier as well as the refrigeration and air conditioning requirements under varied evaporation temperature.
Selection of Model (Common Refrigerants):
| Refrigerant | Model | Pressure Balance | Thread(Connection Size) | Nominal Refrigerating Capacity | |||||||
| Inlet | Outlet | Outside Balanced End | T | kW | kcal/h | ||||||
| metric | inch | metric | inch | metric | inch | ||||||
| R22 | ERF22-Φ1.0 | Inner Equilibrium(flare) | M16X1.5 | 3/8 SAE | M18X1.5 | 1/2 SAE | —— | —— | 1.0 | 3.5 | 3024 |
| ERF22-Φ1.5 | 1.6 | 5.6 | 4840 | ||||||||
| ERF22-Φ2.0 | 2.0 | 7.0 | 6048 | ||||||||
| ERF22-Φ2.5 | 2.5 | 8.8 | 7560 | ||||||||
| ERF22-Φ3.0 | 3.0 | 10.5 | 9072 | ||||||||
| ERF22-Φ4.0 | 5.0 | 17.6 | 15120 | ||||||||
| ERF22-Φ5.0 | M22X1.5 | 5/8 SAE | 6.0 | 21.0 | 18144 | ||||||
| ERF22-Φ6.0 | 5.0 | 17.6 | 7.5 | 26.0 | 22680 | ||||||
| ERF22-Φ7.0 | M22X1.5 | 5/8 SAE | M22X1.5 | 5/8 SAE | 8.5 | 29.9 | 25704 | ||||
| ERF22-Φ8.0 | 12.0 | 42.2 | 36288 | ||||||||
| ERF22-Φ9.0 | 15.0 | 52.7 | 45360 | ||||||||
| R134a | ERF22-Φ1.0 | M16X1.5 | 3/8 SAE | M18X1.5 | 1/2 SAE | —— | —— | 0.5 | 1.75 | 1510 | |
| ERF22-Φ1.5 | 0.7 | 2.5 | 2116 | ||||||||
| ERF22-Φ2.0 | 1.5 | 5.2 | 4500 | ||||||||
| ERF22-Φ2.5 | 1.6 | 5.6 | 4838 | ||||||||
| ERF22-Φ3.0 | 2.0 | 7.0 | 6048 | ||||||||
| ERF22-Φ4.0 | 3.0 | 10.5 | 9072 | ||||||||
| ERF22-Φ5.0 | M22X1.5 | 5/8 SAE | 5.0 | 17.6 | 15120 | ||||||
| ERF22-Φ7.0 | M22X1.5 | 5/8 SAE | M22X1.5 | 5/8 SAE | 6.5 | 22.9 | 19656 | ||||
| ERF22-Φ9.0 | 11.0 | 38.7 | 33264 | ||||||||
| R22 | ERF22-Φ1.0 | Outer Equilibrium(flare) | 3/8 SAE | 1/2 SAE | 1/4 SAE | 1.0 | 3.5 | 3024 | |||
| ERF22-Φ1.5 | 1.6 | 5.6 | 4840 | ||||||||
| ERF22-Φ2.0 | 2.0 | 7.0 | 6048 | ||||||||
| ERF22-Φ2.5 | 2.5 | 8.8 | 7560 | ||||||||
| ERF22-Φ3.0 | 3.0 | 10.5 | 9072 | ||||||||
| ERF22-Φ4.0 | 5.0 | 17.6 | 15120 | ||||||||
| ERF22-Φ5.0 | 1/2 SAE | 5/8 SAE | 6.0 | 21.0 | 18144 | ||||||
| ERF22-Φ6.0 | 7.5 | 26.5 | 22680 | ||||||||
| ERF22-Φ7.0 | 5/8 SAE | 5/8 SAE | 8.5 | 29.9 | 25704 | ||||||
| ERF22-Φ8.0 | 12.0 | 42.2 | 36288 | ||||||||
| ERF22-Φ9.0 | 15.0 | 52.7 | 45360 | ||||||||
| R134a | ERF22-Φ1.0 | 3/8 SAE | 1/2 SAE | 0.5 | 1.75 | 1510 | |||||
| ERF22-Φ1.5 | 0.7 | 2.5 | 2116 | ||||||||
| ERF22-Φ2.0 | 1.5 | 5.2 | 4500 | ||||||||
| ERF22-Φ2.5 | 1.6 | 5.6 | 4838 | ||||||||
| ERF22-Φ3.0 | 2.0 | 7.0 | 6048 | ||||||||
| ERF22-Φ4.0 | 3.0 | 10.5 | 9072 | ||||||||
| ERF22-Φ5.0 | 1/2 SAE | 5/8 SAE | 5.0 | 17.6 | 15120 | ||||||
| ERF22-Φ7.0 | 5/8 SAE | 5/8 SAE | 6.5 | 22.9 | 19656 | ||||||
| ERF22-Φ9.0 | 11.0 | 38.7 | 33264 | ||||||||
·Working Condition of Nominal Refrigerating Capacity: Evaporation Temperature te = + 5℃; Condensation Temperature tK = +40℃; Degree of Superheat 2℃
| Applicable Refrigerants: | R22、R134a |
| Applicable Medium Temperature: | -40℃~+10℃ |
| Norminal Capacity: | 3.5KW~158KW |
| Adjustable Range of Superheat: | 2℃~8℃ |
| Ex-Works Static Heat Adjustment | 3.5℃ |
| Outer Equilibrium End Leakage: | ≤75ml/min |
| Maximum Working Pressure: | 2.0MPa |
| Maximum Testing Pressure: | 3.0MPa |
·Model ERF (ERFW) and FRF expansion valves have two types of connection: Flare and ODF.
·Model ERF (ERFW) and FRF expansion valves capillary standard 1.5 m, (φ10~ 13 is 3m ) and special length is available to meet customer requirement.