The Fabri-Valve Figure C67 features a unique, patented, perimeter seal that provides bi-directional shutoff. The seal is retained in the valve body by its trapezoidal shape. A relief has been cast into the valve body behind the seal. Designed to overcome the problems experienced with existing perimeter seal designs, the relief greatly reduces seal compression set; the shape of the seal eliminates leakage due to seat rollover, eliminates seal pullout due to fluid velocity, and eliminates grooves that collect material and prevent the valve from properly closing. This unique valve design is available in stainless steel and carbon steel. Stainless steel bodied valves have white EPDM seals as standard. Carbon steel bodied valves have black EPDM seals as standard. Black Viton or white Viton, AFLAS, Hycar, Hypalon, Neoprene, HNBR, and other seal materials are available as options.
All Figure C67 knife gate valves with handwheels include a provision for a locking device.
Unit of Measure

Specifications

N/A Size Range
2" – 36"
Pressure Rating
2" – 24" 150 psi (10.3 bar) CWP (cold working pressure)
30" 100 psi (6.9 bar)
36" 80 psi (5.5 bar)
Consult factory for higher pressure designs.
Temperature Rating
EPDM Seat -50°F (-45°C) to 280°F (138°C)
Viton Seat -30°F(-34°C) to 350°F (177°C)
Flange Drilling
ANSI 125/150 Drilling

Testing

N/A Every Fabri-Valve Figure C67 valve is fully tested prior to shipment. Testing includes a body shell test, a seat test and a cycling test to insure proper functioning of moving parts. Additional testing is also available. Please let us know your requirements.

  • Standard Shell test: Hydro test at 1.5 times the rated CWP (cold working pressure) – Zero allowable leakage
  • Standard Resilient Seat test: Hydro test at 15 psi (1 bar) and rated CWP

  • Pressure/Temperature Ratings

    N/A The table listed in 'more images' is the Maximum Pressure Temperature Ratings for the metallic components only. When checking pressure/temperature ratings, check the temperature rating and chemical compatibility of the packing material and the resilient seat material. In a majority of knife gate valve designs, the temperature limit or the chemical compatibility of the seat and/or packing material determines the practical pressure/temperature limitations.

    Flow Coefficients

    N/A The Cv values in 'more images' represent U.S. gallons per minute 60°F water through a 100% open valve at a pressure drop of 1 psi. The metric equivalent, Kv, is the flow of water at +16°C through the valve in cubic meters per hour at a pressure drop of 1 kg/cm2. To convert Cv to Kv, multiply the Cv by 0.8569.

    Shutoff Performance

    N/A Zero leakage. All sizes.

    Chest Liners

    N/A Optional chest liners fill the clearances between the gate and the chest of the Figure C67 body. Chest liners prevent solids entrapment in the chest area, and also provide increased gate support for high flow/high pressure applications. Standard materials are ultra high molecular weight polyethylene (UHMW) and reinforced PTFE.

    Available Options

    N/A

  • Hard Gate Material
  • Nickel-TFE Coated Gate
  • Epoxy Coating
  • Thru Drilled Flanges
  • Flush Ports: Chest Only, 6" (DN 150) and larger
  • V-Port
  • Locking Devices
  • E-Z Spin Handwheel
  • Live Loaded Packing
  • Chest Liners
  • Self-Supporting Yokes
  • Alternate Flange Drilling
  • Bevel Gear
  • Chainwheels
  • Cylinder Actuators
  • Electric Actuators
  • Ratchet
  • Extended Stems
  • Rod Boots