

Direct-acting refrigeration solenoid valve with 3/8″ threaded / Φ10 solder connections; Kv 0.23, max. working pressure 3.5 MPa, OPD 0-2.5 MPa, for R22, R134a, R404A/R507, R407C.
| Item | Specification |
|---|---|
| Connection Size / Thread | 3/8″ threaded / Φ10 solder |
| Actuation | Direct-acting |
| Kv Value | 0.23 |
| Max. Working Pressure (MPa) | 3.5 |
| Max. OPD (MPa) | 2.5 |
| Min. OPD (MPa) | 0 |
| Refrigerants | R22、R134a、R404A/R507、R407C |
| Model | Size | Connection | Actuation | Flow (m³/h) | Max. Working Pressure (MPa) | Max. OPD (MPa) | Min. OPD (MPa) |
|---|---|---|---|---|---|---|---|
| HDF3 | 3/8 | Threaded | Direct-acting | 0.23 | 3.5 | 2.5 | 0 |
| HDF3 | Φ10 | Solder | Direct-acting | 0.23 | 3.5 | 2.5 | 0 |
The catalogue does not list overall dimensions / weight for this direct-acting model — please ask us for the confirmed drawing.
| Size | Connection | Liquid | Suction | Hot Gas | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R22 | R134a | R404A/R507 | R407c | R22 | R134a | R404A/R507 | R407c | R22 | R134a | R404A/R507 | R407c | ||
| 3/8 | Threaded | 6.3 | 4.5 | 4.3 | 5.8 | 0.65 | 0.51 | 0.42 | 0.58 | 2.5 | 2.1 | 2 | 2.6 |
| Φ10 | Solder | 6.3 | 4.5 | 4.3 | 5.8 | 0.65 | 0.51 | 0.42 | 0.58 | 2.5 | 2.1 | 2 | 2.6 |
1. Liquid and suction capacity conditions: evaporating temperature te = -10 ℃, liquid temperature ahead of valve tl = +25 ℃, pressure drop across the valve Δp = 0.15 bar.
2. Hot-gas capacity conditions: condensing temperature tc = +40 ℃, pressure drop across the valve Δp = 0.8 bar, hot-gas temperature th = +65 ℃, liquid subcooling Δtsub = 4k.
素材/图纸/hdf_外形尺寸图.pdf