Danfoss NRV 28s piston-type check valve (non-return valve), OEM P/N 020-1025. Controls unidirectional refrigerant flow to prevent back-flow in commercial refrigeration and air-conditioning systems. Angleway (90°) pattern, solder ODF connection 28 mm inlet and outlet. Piston design, single flow. Max working pressure 46 bar (667 psig); media temperature -50 °C to 140 °C. Suitable for oil-free applications. Refrigerant compatibility is listed on the datasheet — verify against your system charge.
| Brand | Danfoss |
| Part number | 020-1025 |
| Model | NRV 28s piston-type check valve (non-return valve), angleway variant |
| Category | HVAC & Refrigeration — Check Valves |
| Direction | Angleway |
| Connection | Solder, ODF, 28 mm, inlet and outlet |
| Max working pressure (PS/MWP) | 46 bar (667 psig) |
| Media temperature range | -50 °C to 140 °C (-58 °F to 285 °F) |
| Kv | 16.5 m³/h |
| Min. pressure drop | 0.04 bar (0.6 psi) |
| Flow | single flow, piston design; embossed 1-way flow arrow |
| Net weight | 1.251 kg |
| EAN | 5702422009498 |
| Materials | Valve body brass; connection copper |
| Approvals | UL (C UL US Listed), EAC |
| Refrigerant compatibility per the NRV/NRVH datasheet; suitable for oil-free applications | |
| Material | Valve body brass; connection copper — full material breakdown in the NRV/NRVH datasheet |
| Pressure rating | 46 bar (667 psig) max working pressure |
| Temperature range | -50 °C to 140 °C |
| MOQ | 1 |
Install in the direction of the flow arrow. The differential pressure across the valve must exceed the opening pressure, including at the lowest capacity of capacity-regulated compressors. Angleway (90°) pattern with solder ODF connections. Verify code and connection size before ordering.