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Valves • Gate Valves • Knife Gate Valves

Knife Gate Valves are intended for slurry-handling applications in the chemical, power and mining industries. Some company’s knife valves come in wafer-style or wide-body design, and are equipped with manual or pneumatic control. Featuring a metal or resilient seat, knife gate valves often come with replaceable cartridge seats, which act as the sealing and wear surface of the valve.

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  • DeZURIK

    DeZURIK, Inc produces a wide selection of knife gate valves. KGC cast stainless steel knife gate valves include sizes 2 to 36 inches. GKU knife gate valves are uni-directional with a full lug cast stainless steel body, stainless steel gate and stem in sizes 2 to 54 inches. For on-off applications, the KGN cast stainless steel knife gate valves with stainless steel body, gate, packing gland and stem in sizes 2 to 24 inches with 150 psi CWP.

  • FNW

    FNW Valve produces knife gate valves in three models. The 61B stainless steel lined metal seated knife gate valves are equipped with a ductile iron body and stainless steel wetted parts. The 65B stainless steel lined metal seated knife gate valves are equipped with a stainless steel body and yoke. The 67B stainless steel lined metal seated knife gate valves are equipped with a stainless steel body and yoke, and a thrust ball bearing yoke bushing.

  • Velan

    Velan Inc. produces bolted bonnet metal seated knife gate valves, bolted bonnet resilient seated knife gate valves, standard metal seated knife gate valves and standard resilient seated knife gate valves. Bolted bonnet metal seated and bolted bonnet resilient seated configurations are offered in a size range from 4 to 24 inches with lug connections and pressure rating up to 150 psig.

  • Weir Minerals

    The Weir Group PLC  produces knife gate valves. The WB series and WS series suited for highly abrasive and corrosive applications. The WB Series of Isogate slurry knife gate valves are wide body and the heavy duty slurry knife gate valves offer full port flow and bi-directional shutoff in sizes from 18 to 54 inches.

  • Red Valve Co./Tideflex Technologies

    Red Valve Co. manufactures knife gate valves for various slurry-handling applications within the power and mining industries. The company's knife gate valve types - all of which feature stainless steel bodies - include: slurry, large diameter, pneumatic, manual, pneumatic slurry, and manual slurry.

  • Weyvalve Inc.

    Weyvalve Inc. provides high performance knife gate valves in materials from cast iron to titanium.. Line of knife gate valve have designs for 150 psi CWP (cold working pressure), 300 psi CWP, and up to 1440 psi CWP. The WEY VL valves feature a size range from 2 to 30 inches with pressures of 150 psi for 2 to 12 inch valves and 90 psi for 14 to 30 inch valves. The WEY VS valves feature a size range from 2 to 24 inches with pressures of 150 psi for 2 to 12 inch valves and 60 psi for 14 to 24 inch valves The WEY DB valves feature a size range from 2 to 14 inches with pressures of 150 psi for 2 to 12 inch valves and 90 psi for 14 to 24 inch valves. The WEY NA1 valves feature a size range from 2 to 96 inches with pressures of 150 psi for 2 to 24 inch valves. The WEY TI3 valves feature a size of 3 inches with pressures of 150 psi. The WEY Sheargate valves feature a size range from 2 to 30 inches with pressures of 150 psi for 2 to 24 inch valves, 2 piece body, tight tolerances, smooth cycling and compression loaded seat rings.

  • Automated Valve & Equipment

    Automated Valve & Equipment Co. supplies knife gate valves in the Orbinox Series 10, 20, 21 and 61. The Orbinox Series 10 features a mono block cast body, cast iron or stainless steel body material, wafer style, raised face seat, gate guides, and jams in a size range from 2 to 72 inches. The Orbinox Series 20 possesses the same features and is also available in metal and resilient seat models with seat materials including poly tetra flora ethylene (PTFE), EPDM (standard), and Viton. The Orbinox Series 21 is a heavy duty knife gate valve in a bi directional design. It is constructed of a one piece, stainless steel body, stainless steel gate, resilient seat, easy access packing, stainless steel stem, interchangeable actuators, EPOXY coated steel yoke and EPOXY coating on the body. The Orbinox Series 61 is a slurry knife gate valve in a mono block, wafer, and bi-directional design in a size range from 2 to 48 inches. The valve features a ductile iron body with replaceable rubber sleeves in the seat.

  • Valve Solutions, Inc.

    Valve Solutions, Inc. carries knife gate valves in lug and wafer styles. Available knife gate valves are offered in sizes 2 to 36 inches. With the function of ON/OFF or regulation, knife gate valves feature wafer threaded flange mounted, single directional tightness, small retention zone, gland packing, diaphragm ring, standard fixation holes, and possible mounting protection holes. Its operators include handwheel, double-acting pneumatic actuator, single-acting pneumatic actuator, gear box and hydraulic actuator.

  • ITT Engineered Valves

    ITT Engineered Valves offers Fabri-Valve knife gate valves such as heavy duty knife gate valves, lined knife gate valves, ductile iron knife gate valves, polyurethane knife gate valves, bonneted knife gate valves, urethane knife gate valves, high performance knife gate valves and urethane lined knife gate valves. Heavy duty knife gate valves are offered in sizes 1.5 to 96 inches with a 150 psi pressure rating. The 30 and 36 inch lined knife gate valves feature a 150 psi pressure rating, one piece cast iron body, chest and flanges as well as stainless steel lining. Ductile iron knife gate valves feature a solid ductile iron or carbon steel body, integral cast metal seat and a size range from 2 to 24 inches. The bi-directional knife gate valves features a perimeter seal, carbon steel body, and EPDM seals with a size range from 2 to 36 inches. Bonneted knife gate valves feature high cycle stem sealing, cylindrical packing and a size range from 1.5 to 96 inches. The urethane lined knife gate valves feature a perimeter seal, bi-directional and bubble tight shutoff and replaceable urethane liners in sizes 2 to 24 inches.

  • U.S. Plastic Corp.

    US Plastic Corp offers knife gate valves for quick shut off in low pressure situations. The white and gray valves feature PVC design while the black valves feature UC resistant ABS design. Features includes santoprene lip type seats, EPDM O-rings, stainless steel shaft, full flow with unrestricted flow design, polypropylene handles (glass reinforced), molded mounting pads, double O-ring shaft seals, and gatekeeper safety clip. Pressure ratings are up to 50 psi for sizes 1-1/2” to 2-1/2” and up to 40 psi for sizes 3” to 4”.

  • Tyco Flow Control

    Pentair manufactures and supplies knife gate valves in all metal or polymer lined. Knife gate valves are suited for mining, pulp and paper, power, chemical and petro-chem, waste treatment, steel, food and beverage, and powder and bulk industries. L&M Valve knife gate valves provide bi-directional shut off, full port and positive seal packing designs.

  • Sure Flow Equipment

    Sure Flow Equipment Inc. designs knife gate valves in a cast stainless steel full lug body and full port design in sizes 2 to 24 inches. Features also include bi-directional shut off, resilient seat design, Viton and EPDM seats, cast iron handwheel, live loaded packing lgand, reduced body cavity, beveled gate edge and machined gate lugs. Scavenger knife gate valves feature full port, bi-directional shut off, hardened beveled gate, hardened seat, precision ground fate chrome plate, removable insert ring, two piece cavity free body, live loaded Teflon packing, adjustable stainless steel packing gland, and sizes 3 to 24 inches.

  • Orbinox

    Orbinox produces knife gate valves in a variety of series. The EX and EK models are uni-directional wafer knife gate valves in sizes DN 50 to DN 1200 for EX models and DN 50 to DN 800 for EK models. The ET model knife gate valves are uni-directional lug type valves in sizes 2 to 30 inches. The TL model knife gate valves are through conduit wafer valves with double seat design, non-clogging shut off and sizes DN 50 to DN 600. The CR model knife gate valves are heavy duty valves in a two-piece body with round inlet and square outlet in sizes DN 100 to DN 600. The DT model knife gate valves are double gate valves in sizes DN 100 to 600. The EB model knife gate valves are bi-directional valves with non-clogging shutoff and sizes DN 50 to 1200. The VG model knife gate valves are wafer valves with double seated design, two rubber sleeves, bi-directional shutoff and sizes DN 50 to 600. The XC model knife gate valves are wafer valves with reverse position installation, and sizes DN 50 to 600. The BC model knife gate valves are square port low-pressure valves for solid loaded fluids with sizes from DN 150 x 150 to DN 600 x 600.

  • Lined Valve Company, Inc.

    Lined Valve Company, Inc. manufactures knife gate valves including metal seated knife gate valves, resilient seated knife gate valves and special application knife gate valves. The metal seated knife gate valves feature stainless steel knife gate valves in sizes 3 to 24 inches, stainless steel lined knife gate valves in sizes 14 to 24 inches, fabricated slide gate valves in sizes 3 to 24 inches, and bonneted knife gate valves in sizes 3 to 24 inches. Resilient seated knife gate valves includes ductile iron knife gate valves in sizes 3 to 24 inches, polymer lined knife gate valves in sizes 3 to 24 inches, urethane lined knife gate valves in sizes 3 to 24 inches, and cast body resilient seat knife gate valves in sizes 2 to 24 inches. Special application knife gate valves includes large fabricated knife gate valves in sizes 30 to 60 inches, and custom fabricated knife gate valves in various materials.

  • NewCon Co

    NewCon Co produces knife gate valves in sizes 2 to 40 inches in diameter with positive shutoff. For on-off service, the valves feature self flushing design, zero downstream leakage, zero atmospheric leakage, replaceable and one-piece urethane liner, molded elastometer gate seal and spare parts.

  • Mechanical Supply Co.

    Mechanical Supply Co. is a distributes a number of knife gate types including: alloy, corrosion resistant, cast, lined, actuated, SVC, stainless steel, and large diameter. The majority of knife gate valves supplied by the company are manufactured by Orbinix.

  • Shanghai Qiuyi Valve

    Qiuyi Valve Ltd offers knife gate valves in a variety of configurations and product materials. The knife gate valves feature pressure range from 150 to 1200 LB, sizes DN 15 to 1200, and design standards of API, DIN, BS, GB and JIS. The electric single clip-on knife gate valves feature pressure range from 150 to 600 LB, sizes DN 15 to 1200, and design standards of API, DIN, BS, GB, EEMUA, and JIS. The pneumatic slurry gate valves feature pressure range from 150 to 300 LB, sizes DN 15 to 1200, and design standards of API, DIN, BS, GB and JIS. The manually slurry knife gate valves feature pressure range from 150 to 300 LB, sizes DN 15 to 1200, and design standards of API, DIN, BS, GB, EEMUA, and JIS. The manual wafer knife gate valves feature pressure range from 150 to 600 LB, sizes DN 15 to 1200, and design standards of API, DIN, BS, GB, EEMUA, and JIS. The bevel gear wafer knife gate valves feature pressure range from 150 to 300 LB, sizes DN 15 to 1200, and design standards of API, DIN, BS, GB, EEMUA and JIS. The electro hydraulic actuator wafer knife gate valves feature pressure range from 150 to 600 LB, sizes DN 15 to 1500, and design standards of API, DIN, BS, GB, EEMUA and JIS.

  • Rainey Engineering, Inc.

    Rainey Engineering, Inc. offers knife gate valves. Types of available gate valves includes wafer knife gate valves, lug style knife gate valves, round inlet and square outlet knife gate valves (in sizes 6 to 24 inches), through conduit knife gate valves, double gate knife gate valves, hopper shape knife gate valves, tilting disc check valves, rubber sleeve knife gate valves (in sizes 2 to 24 inches) and square port knife gate valves.

  • A-C Valve Inc.

    A-C Valve Inc. builds knife gate valves including metal and resilient seated knife gate valves, split ductile body knife gate valves, slide fate valves, bonneted knife gate valves, fabricated and custom designed knife gate valves, solid one piece cast body knife gate valves. Features include all cast stainless steel construction, compact wafer configuration, non clogging, full port design, sizes 2 to 72 inches, 150 psi, and flanges  for dense mixtures of stock and slurry.

  • FLSmidth

    FLSmidth Minerals offers Technequip knife gate valves. Technequip knife gate valves are true bi-directional slurry knife gate valves with massive rubber sleeves for mining and milling industries. Features include size range from 3 to 30 inches, fluorocarbon coated stainless steel gate, zinc nickel plated hardware, epoxy paint, no packing, CNC machined gate guide and body, low durometer seats, flange bolt pattern, ring magnet, and frames for any actuator.