Knife-Gate Valve

Our Products / Valves / Knife-Gate Valve
  • Knife Gate with Spring Return

  • FAIL CLOSE OR FAIL OPEN KNIFE GATE VALVES

    Knife gate valves can now be supplied with Motivact’s Spring Return Pneumatic Cylinders. This option is less bulky than accumulator tanks and doesn’t rely on complex back-up systems to achieve the desired fail position.

    Cylinders with SR are available for valves up to DN600 bore.

    FRP Barrel with 316ss shaft & epoxy coated carbon steel ends.

    * Option: 316ss Barrel, shaft & ends



  • Model S20 Knifegate Valve – PU Rubber Lined

  • Shearseal Knifegate valve with polyurethane liner for heavy duty applications such as abrasive slurry, wafer (through holes) or lugged body design, bi-directional, split body design, bonnetless, non-rising stem, 4-bolt stuffing box, cast or ductile iron body, 304SS blade, bubble tight shut-off, handwheel operated

    Sizes: 2” (DN50) → 12” (DN300) – Rated 10 bar.

    * Options: WCB Body, Gator, Blade Scrapers, Air cylinder, Limit Switches, Gear Operators, various Blade (Gate) options such as 304SS, Hastelloy C, abrasion resistant steel etc

     



  • Model S1 Knifegate Valve – Unlined

  • Shearseal Knifegate valve for general service and heavy duty applications, wafer (through holes) or lugged body design, bi-directional, split body design, bonnetless, non-rising stem, 4-bolt stuffing box, cast or ductile iron body, 316SS blade, nitrile resilient seat (o-ring cord design) for bubble tight shut-off, handwheel operated

    Sizes: 1-1/2” (DN40) → 6” (DN150) – Rated to 10 bar
    8” (DN200) → 24” (DN600)- Rated to 7 bar

    * Options: WCB Body, High Pressure Modifications to 18 bar , Gator, Deflection Cone, Air cylinder, Limit Switches, Gear Operators, seal options such as Viton, Silicon, PTFE, various Blade (Gate) options such as 304SS, Hastelloy C, abrasion resistant steel



  • 740 Knifegate Valve (Stainless Steel, Resilient Seat)

  • VAAS Bi-directional Knife gate valve for general service, water and sewage applications, full bore, fully lugged body design to Table “D”, rising stem, 316SS body, 304/316SS plated gate, 304SS stem, EPDM seat (o-ring cord design) for bubble tight shut-off, hand wheel operated

    Sizes: 2” (DN50) → 24” (DN600) – Rated 10 bar.

    * Options: WCB Body, Chloroprene seat, bolt on bonnet, lugged to Ansi 150

     



  • 940 Knifegate Valve (Stainless Steel, Metal/Metal Seat)

  • VAAS Model 940 Uni-directional Knifegate valve for medium & heavy duty applications service, full bore, fully lugged body design to Table “D”, rising stem, 316SS body, 316SS gate, PTFE packing, metal/metal seat, hand wheel operated.

    Sizes:  2” (DN50) → 24” (DN600) – Rated to 10 bar

    Options: WCB Body, 304SS Chloroprene seat, bolt on bonnet, lugged to Ansi 150