ITT Engineered Valves
Fabri-Valve CF37 Heavy Duty Knife Gate Valve
The Fabri-Valve C/F37 is a heavy-duty knife gate valve family for abrasive slurry service, offered with rugged one-piece cast bodies and fabricated bodies that scale up to very large diameters. Its standout strength is the industry's widest range of seat options, letting one valve platform be tailored to almost any isolation duty.
Product Benefits
- Built for varied slurries: Slurry lines vary enormously in abrasiveness, chemistry, and temperature, and a valve that suits one service can fail quickly in another.
- Unmatched seat selection: The C/F37 answers that with integral metal, integral or replaceable hard-faced metal, a resilient rubber ring, and replaceable rubber, polyurethane, UHMWPE, and PTFE seats, so the sealing system can be matched precisely to the media.
- Rugged cast body: The cast C37 body is a one-piece casting with no fabrication seams to leak or distort.
- Fabricated for large bores: The fabricated F37 extends the same design to very large diameters and can be built to the pressure rating your application actually needs.
Where It's Used
- Heavy process industries: The C/F37 is a workhorse for abrasive slurry isolation across pulp and paper stock lines, mineral slurries, and similar solids-laden services.
- Very hot services: With an integral metal seat it can also be configured for extremely hot duties, a capability few resilient-seated knife gates can approach.
- Manual to automated: Actuation options span the E-Z Spin handwheel, bevel gear, chainwheel, cylinder, and electric actuators on a universal yoke, covering everything from occasional manual isolation to automated sequencing.
Good to Know
- Materials to suit: Standard construction uses several stainless steel grades with the gate matched to the body, and special alloys are available for aggressive chemistry.
- Carbon steel R-series: An R-series variant uses carbon steel for external parts where full stainless steel is unnecessary.
- Dependable stem seal: Larger cast valves and all fabricated valves come with energized cored packing for a more reliable seal around the stem.
- High-temperature builds: Very hot services call for high-temperature fasteners, and the hottest applications should be reviewed with the factory.
- Safe maintenance: The universal yoke includes a lockout so the valve can be isolated safely for maintenance.






