Danfoss WVO 10 pressure-operated water valve, OEM P/N 003N6220. Regulates the flow of cooling water to a water-cooled condenser from the condensing (refrigerant) pressure and shuts the water off when the plant stops. Opens on rising condensing pressure; narrow control-pressure band set on the adjustment spring. Brass body, ISO 228-1 water connection. Water connection G 3/8 in; refrigerant sensing connection 1/4 in / 6 mm SAE flare (Schrader). Control pressure range 16 – 22 bar; Kv 1.4 m³/h. Body brass. Max working pressure 16 bar (232 psig). Media: Fresh water, neutral brine. Verify the setting range and refrigerant against the datasheet before ordering.
| Brand | Danfoss |
| Part number | 003N6220 |
| Model | WVO 10 pressure-operated water valve |
| Category | HVAC & Refrigeration — Water Regulating Valves |
| Version | narrow control-range spring, G (ISO 228-1) water connection, Schrader sensing |
| Function | opens on rising condensing (refrigerant) pressure; narrow-band regulation of condensing pressure by throttling the condenser cooling water |
| Nominal size | WVO 10 (DN 10) |
| Water-side connection | G 3/8 in, ISO 228-1 (inlet and outlet) |
| Refrigerant sensing connection | 1/4 in / 6 mm SAE flare (Schrader) |
| Control pressure range | 16 – 22 bar |
| Kv | 1.4 m³/h |
| Max working pressure (MWP) | 16 bar (232 psig) water side |
| Media temperature range | -25 °C to 130 °C |
| Orifice | 10 mm |
| Body material | brass |
| Media | Fresh water, neutral brine |
| Packing | Multi-pack (10 pcs) |
| EAN | 5702428288255 |
| Materials | Valve housing hot-pressed brass; regulating seat and bellows stainless steel; adjustment spring steel |
| Approvals | UL Listed (C UL US), EAC, PED, EU RoHS, China RoHS |
| Material | Valve housing hot-pressed brass; regulating seat and bellows stainless steel; adjustment spring steel |
| Pressure rating | 16 bar (232 psig) water side max working pressure |
| Temperature range | -25 °C to 130 °C |
| Standard size | WVO 10 |
| Thread standard | ISO 228-1 |
| MOQ | 1 |
Fit in the cooling-water line to the condenser with the flow arrow in the direction of flow; the refrigerant sensing flare connects to the condenser/receiver. Set the closing pressure on the adjustment spring to the required condensing pressure. Direct-acting (opens on rising pressure). Confirm code, water connection and setting range before ordering.