STF
Official Danfoss product illustration; the image may represent the product family.
4-WAY REVERSING VALVE
STF-2501G3 — 4-way reversing valve
SKU 061L1278Danfoss STF-2501G3 (061L1278) is a 4-way reversing valve in the STF range. Maximum working pressure: 45 bar. Check reference-specific refrigerants, operating conditions and coil requirements in the manufacturer specifications before ordering.
45 barMax. Working Pressure [bar]
1 1/4Suction conn size [in]
1 inDischarge conn size [in]
PRODUCT DATA
Technical specifications
Source: Danfoss product catalog.
Verified September 22, 2026.
| Gross weight | 4.75 Kilogram |
|---|---|
| Net weight | 4.71 Kilogram |
| Volume | 36.8 Liter |
| EAN | 5702428273138 |
| Type | STF |
| Product group | 4-way reversing valves |
| Product Name Description | 4-way reversing valve |
| Ambient temperature range [°C] [max] | 55 °C |
| Ambient temperature range [°C] [min] | -20 °C |
| Ambient temperature range [°F] [max] | 131 °F |
| Ambient temperature range [°F] [min] | -4 °F |
| Approval | CE VDE |
| Cap condition 1 [°C] | 0°C sub-cooling 38°C condensing 5°C evaporating 5°C super-heat |
| Cap condition 2 [°C] | 54,4 °C condensing 5°C sub-cooling 5°C super-heat 7,2°C evaporating |
| Cap R407C@Δp:0.1bar(cond1)[kW] | 55.85 kW |
| Cap R407C@Δp:0.1bar(cond2)[kW] | 47.71 kW |
| Cap R407C@Δp:0.2bar(cond1)[kW] | 78.61 kW |
| Cap R407C@Δp:0.2bar(cond2)[kW] | 67.19 kW |
| Cap R410A@Δp:0.1bar(cond1)[kW] | 72.19 kW |
| Cap R410A@Δp:0.1bar(cond2)[kW] | 62.56 kW |
| Cap R410A@Δp:0.2bar(cond1)[kW] | 101.81 kW |
| Cap R410A@Δp:0.2bar(cond2)[kW] | 88.24 kW |
| CE mark | Yes |
| China RoHS compliance | Yes |
| China RoHS exemption clause | No |
| Coil | No |
| Contains batteries | No |
| Design config. Style | G |
| Discharge conn size [in] | 1 in |
| Discharge conn size [mm] | 25.7 mm |
| Discharge conn type | FEMALE |
| EU RoHS compliance | Yes |
| EU RoHS exemption clause | No |
| Evap/cond conn size [in] | 1 1/4 |
| Evap/cond conn size [mm] | 32,05 |
| Max. Leakage [cm³/min] | 10000 cm³/min |
| Max. Working Pressure [bar] | 45 bar |
| MaxOPD [bar] | 31 bar |
| MaxOPD [psi] | 450 psi |
| MaxOPD [psig] | 450 psig |
| Medium temperature range [°C] [max] | 140 °C |
| Medium temperature range [°C] [min] | -30 °C |
| Medium temperature range [°F] [max] | 284 °F |
| Medium temperature range [°F] [min] | -22 °F |
| MinODP [bar] | 3 bar |
| MinODP [psi] | 44 psi |
| Packing format | Single pack |
| Process connection material | Copper |
| Quantity per packing format | 1 pc |
| REACH Candidate List substances | No |
| Refrigerants | R134a R22 R404A R407C R410A |
| Shock resistance standard | JIS C 60068-2-27 |
| Suction conn size [in] | 1 1/4 |
| Suction conn size [mm] | 32.05 mm |
| Type designation | STF-2501G3 |
| Vibration stability [m/s²] | 19.6 m/s² |
| Vibration test standard | JIS C 60068-2-6 |
For operating conditions, refrigerant compatibility, connection requirements and installation instructions, consult the official Danfoss reference ↗.