STF
Official Danfoss product illustration; the image may represent the product family.
4-WAY REVERSING VALVE
STF-03U6G3 — 4-way reversing valve
SKU 061L1220Danfoss STF-03U6G3 (061L1220) is a 4-way reversing valve in the STF range. Maximum working pressure: 41.5 bar. Check reference-specific refrigerants, operating conditions and coil requirements in the manufacturer specifications before ordering.
41.5 barMax. Working Pressure [bar]
3/4Suction conn size [in]
1/2 inDischarge conn size [in]
PRODUCT DATA
Technical specifications
Source: Danfoss product catalog.
Verified September 22, 2026.
| Gross weight | 0.457 Kilogram |
|---|---|
| Net weight | 0.38 Kilogram |
| Volume | 2.017 Liter |
| EAN | 5702428318587 |
| 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 | UL |
| Cap R407C@Δp:0.1bar(cond1)[kW] | 8.38 kW |
| Cap R407C@Δp:0.1bar(cond2)[kW] | 7.16 kW |
| Cap R407C@Δp:0.2bar(cond1)[kW] | 11.79 kW |
| Cap R407C@Δp:0.2bar(cond2)[kW] | 10.08 kW |
| Cap R410A@Δp:0.1bar(cond1)[kW] | 10.83 kW |
| Cap R410A@Δp:0.1bar(cond2)[kW] | 9.38 kW |
| Cap R410A@Δp:0.2bar(cond1)[kW] | 15.27 kW |
| Cap R410A@Δp:0.2bar(cond2)[kW] | 13.24 kW |
| China RoHS compliance | Out of scope |
| Coil | No |
| Contains batteries | No |
| Design config. Style | E |
| Discharge conn size [in] | 1/2 in |
| Discharge conn size [mm] | 12.95 mm |
| Discharge conn type | FEMALE |
| EU RoHS compliance | Out of scope |
| Evap/cond conn size [in] | 3/4 |
| Evap/cond conn size [mm] | 19,2 |
| Max. Leakage [cm³/min] | 1500 cm³/min |
| Max. Working Pressure [bar] | 41.5 bar |
| MaxOPD [bar] | 31 bar |
| MaxOPD [psi] | 450 psi |
| MaxOPD [psig] | 450 psig |
| Medium temperature range [°C] [max] | 120 °C |
| Medium temperature range [°C] [min] | -20 °C |
| Medium temperature range [°F] [max] | 248 °F |
| Medium temperature range [°F] [min] | -4 °F |
| MinODP [bar] | 3 bar |
| MinODP [psi] | 44 psi |
| Packing format | Industrial pack |
| Process connection material | Copper |
| Quantity per packing format | 32 pc |
| REACH Candidate List substances | Lead (CAS no. 7439-92-1) |
| Refrigerants | R134a R22 R404A R407C R410A |
| SCIP dossier no. | f8fe2fb6-0750-4373-b03a-5b5988b72210 |
| SCIP dossier product name | Four-way valve(1) |
| Shock resistance standard | JIS C 60068-2-27 |
| Suction conn size [in] | 3/4 |
| Suction conn size [mm] | 19.2 mm |
| Type designation | STF-03U6G3 |
| UL approval file name | MH12113 |
| 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 ↗.