HRV
Hand regulating valve
Precise and repeatable flow control
Specifications
The RFF hand regulating valve provides fine, repeatable flow control. Its robust variable-pitch screw mechanism combined with controlled approach gradients enables precise flow adjustment in refrigerant, chilled water and steam networks. Regulating accuracy better than 5 % of the nominal travel.
Key features
- Variable-pitch screw mechanism
- Regulating accuracy < 5 % of travel
- Graduated scale 0 to 100 %
- Setpoint repeatability
- Reversible flow direction
Available connections
| Connection | Standards | DN min – DN max |
|---|---|---|
| Butt weld, EN pipe | EN 10253-2, EN 10253-4 | DN10 – DN100 (10) |
| Butt weld, ASME Schedule pipe | ASME B16.25, ASME B16.9 | DN15 – DN100 (9) |
| Socket weld | ASME B16.11, ASME B16.9 | DN10 – DN100 (10) |
| Butt weld, stainless steel pipe | EN 10253-4, ASME B16.25 | DN10 – DN100 (10) |
Accessories and options
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With handwheel
Manual operation by means of a guided-stem handwheel, with open or closed position locking. Delivers a high operating torque on large diameters.
-
With cap
Shut-off and operation by means of a hexagon cap, with no risk of losing a handwheel. A robust solution for confined plant rooms or infrequently operated positions.
Related products
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