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1.DIN JIS 10K ANSI Gost Cast Steel Flange Pneumatic Knife Gate Valve

COVNA HK59-D-D Pneumatic knife gate valve is driven by compressed air. Pneumatic knife gate valve is simply to use pneumatic actuator to control the valve, so as to achieve the opening and closing of the valve. It can be divided into two parts: upper part is pneumatic actuator and lower part is valve. The pneumatic knife gate valve should be installed horizontally in the pipeline. The opening and closing parts of the pneumatic knife gate valve are the gate, the movement direction of the gate is perpendicular to the direction of the fluid, and the manual knife gate valve can only be fully opened and fully closed, and cannot be adjusted and throttled.

  • Model: HK59-D-D
  • Size Range: 2''~80''
  • Pressure Range: 1.0MPa to 2.5MPa
  • Material: Cast Iron

COVNA HK59-D-D Air Operated Knife Gate Valve

Note: Hard seal only

The pneumatic knife gate valve has the advantages of simple and compact structure, reasonable design, light material saving, reliable sealing, light and flexible operation, small volume, smooth channel, small flow resistance, light weight, easy installation, easy disassembly and so on. It can work normally under the working pressure of 1.0mpa-2.5mpa and operating temperature of – 29-650 ℃. The gate of knife gate valve has the function of shearing, which can scrape off the adhesive on the sealing surface and automatically remove the sundries. The stainless steel gate valve can prevent the sealing leakage caused by corrosion

technical parameters of valve actuator

Double acting Air to open, air to close, air supplier failure to keep the current position
Single acting N/C Air to open, interrupt air to close, air failure to close
Single acting N/O Air to close, interrupt air to open, air failure to open
Optional accessory Reversing solenoid valve, limit switch box, air filter reducing valve, positioner, handle manual, lock up valve.


technical parameters of valve body

Body Valve components
Size range DN50~DN2000 Sealing material PTFE, PPL
Body material Cast iron Core material Stainless steel
End conection Wafer, Flange Stem material Stainless steel
Operating pressure 1.0MPa to 2.5MPa Applicable media Water, oil, Gas, Liquid, steam, powder, anti-corrosive base
Structure Midline Structure

knife gate valve

Accessories of Pneumatic Valve (1)

company certificates

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