STC
Stop-check valve
Isolation and backflow protection in a single body
Specifications
The RFF stop-check valve combines the isolation function of a stop valve and that of a check valve in a single compact body. It simplifies installation, reduces potential leak points and eases maintenance on refrigerant networks and chilled water plants.
Key features
- Two functions in a single body
- Reduced footprint
- Non-removable integrated disc
- Minimal pressure drop when fully open
- Simplified maintenance
Available connections
| Connection | Standards | DN min – DN max |
|---|---|---|
| Butt weld, EN pipe | EN 10253-2, EN 10253-4 | DN10 – DN250 (14) |
| Butt weld, ASME Schedule pipe | ASME B16.25, ASME B16.9 | DN15 – DN250 (13) |
| Socket weld | ASME B16.11, ASME B16.9 | DN10 – DN100 (10) |
| Butt weld, stainless steel pipe | EN 10253-4, ASME B16.25 | DN10 – DN250 (14) |
Accessories and options
-
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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