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.

Technical documents

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