Danfoss ORV Oil Temperature Regulating Valves
ORV are 3-way industrial valves that maintain a constant oil temperature in gas compressor systems by mixing hot and cold oil in the lubricating system of e.g. screw or turbo compressors. The valve uses the high thermal expansion coefficient of wax in a stainless steel nickel-plated thermostatic element — no manual adjustment needed, true plug-and-play.
Can work as a mixing valve (hot + cold inlets → common outlet) or a diverting valve (common inlet → cold/warm outlets). Few components and extended cylindrical connections make installation and service easy; can be mounted in any direction.
Wenzhou Phonetoo Electromechanical Co., Ltd. is an authorized Danfoss distributor in China. Contact us for availability, pricing and delivery time.
Specification
| Item | Value |
|---|---|
| Function | 3-way thermostatic mixing / diverting |
| Max. working pressure | 40 bar |
| Min. operating temperature | –10 °C |
| Element nominal temperatures | 43 / 49 / 60 / 77 °C (110 / 120 / 140 / 170 °F) |
| Connections | Butt-weld DIN / ANSI, socket weld (SOC) |
| Thermostatic element | Stainless steel, nickel plated (wax) |
| Refrigerants | HC, HCFC, HFC, R717 (ammonia), R744 (CO2) |
| Oils | All common refrigeration oils |
| Classification | DNV, CRN, BV, EAC |
Key features
- Maintains constant oil temperature automatically — no manual adjustment
- Mixing or diverting operation from one valve
- Optimized flow characteristics; robust against vibration and shock
- Easy to dismantle and service; extended cylindrical connections
- Can be mounted in any direction
Confirm the exact ORV size, element temperature and code number in your RFQ and we will quote it.
Applications
- Oil temperature control in screw and turbo compressor lubricating systems
- Refrigeration plants using ammonia, CO2, HFC or hydrocarbons
Code numbers
Ordering codes for Danfoss ORV oil temperature regulating valves: thermostats, complete valve housings and spare parts. Confirm the exact type and code number in your RFQ and we will quote it.
Thermostats
| Thermostat | For valve size | Code no. |
|---|---|---|
| Thermostat 43 °C / 110 °F | ORV 25 and ORV 40 H1 | 148H3466 |
| Thermostat 43 °C / 110 °F | ORV 40 and ORV 50 H2 | 148H3467 |
| Thermostat 43 °C / 110 °F | ORV 65 and ORV 80 H3 | 148H3468 (1) |
| Thermostat 49 °C / 120 °F | ORV 25 and ORV 40 H1 | 148H3463 |
| Thermostat 49 °C / 120 °F | ORV 40 and ORV 50 H2 | 148H3464 |
| Thermostat 49 °C / 120 °F | ORV 65 and ORV 80 H3 | 148H3465 (1) |
| Thermostat 60 °C / 140 °F | ORV 25 and ORV 40 H1 | 148H3469 |
| Thermostat 60 °C / 140 °F | ORV 40 and ORV 50 H2 | 148H3470 |
| Thermostat 60 °C / 140 °F | ORV 65 and ORV 80 H3 | 148H3471 (1) |
| Thermostat 77 °C / 170 °F | ORV 25 and ORV 40 H1 | 148H3472 |
| Thermostat 77 °C / 170 °F | ORV 40 and ORV 50 H2 | 148H3473 |
| Thermostat 77 °C / 170 °F | ORV 65 and ORV 80 H3 | 148H3474 (1) |
(1) For valve housing size H3 the code number includes two H2 thermostats. The thermostat code numbers do not include guide ring.
Complete valve housing (including gasket and guide ring but without thermostat)
| Complete valve housing | Code no. |
|---|---|
| ORV 25 DIN H1 | 148H3399 |
| ORV 25 SOC H1 | 148H3400 |
| ORV 25 ANSI H1 | 148H3401 |
| ORV 40 DIN H1 | 148H3361 |
| ORV 40 DIN H2 | 148H3402 |
| ORV 40 SOC H2 | 148H3403 |
| OVR 40 ANSI H1 | 148H3404 |
| ORV 40 ANSI H2 | 148H3405 |
| ORV 50 DIN H2 | 148H3406 |
| ORV 50 SOC H2 | 148H3407 |
| ORV 50 ANSI H2 | 148H3408 |
| ORV 65 DIN H3 | 148H3409 |
| ORV 65 ANSI H3 | 148H3410 |
| ORV 80 DIN H3 | 148H3362 |
| ORV 80 ANSI H3 | 148H3411 |
Spare parts
| Part | Spare parts for | Code no. |
|---|---|---|
| Gasket and guide ring | ORV 25 and ORV 40 H1 | 148H3246 |
| Gasket and guide ring | ORV 40 and ORV 50 H2 | 148H3247 |
| Gasket and guide ring | ORV 65 and ORV 80 H3 | 148H3248 (1) |
(1) Including two guide rings and one gasket. Gasket and guide ring are included when ordering the complete valve housing but can also be ordered separately as spare parts.