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COVNA HK59-D-F Double Flanged Pneumatic Actuator Butterfly Valve

COVNA HK59D-F pneumatic butterfly valve, double acting standard control mode, single acting is available, cast iron or ductile iron body construction, 304 or 316 stainless steel is optional, 2.5 to 8bar input air pressure, minimum 2 inch flanged connection, default NBR seat, suitable for most air, water, light oil, fuels, solvents, alcohol and many acids, EPDM or PTFE seat is optional.

COVNA manufacturer wafer type/lugged type/flanged pneumatic actuator butterfly valve. Welcome to consult.

  • Model: HK59D-F
  • Size Range: 2" to 20"
  • Pressure Range: 1.0 to 6.4MPa
  • Material: Cast Iron, Cast Steel, Ductile Iron, Stainless Steel

COVNA Pneumatic Cast Iron Double Flange Butterfly Valve– DESCRIPTION –

COVNA Air actuated butterfly valve with double flange design and spring return failsafe or double acting air actuator. Which used for on-off control of water and other media compatible with the materials of construction.

COVNA flange type butterfly valve catalog is provided, click download button above to gain butterfly valve flange connection installation & butterfly valve flange dimensions, and butterfly valve flange torque chart.

  • Features: Long Service Life, Eco-Friendly, Easy Installation, etc
  • Actuator Type: Spring Return(Single Acting) and Double Acting
  • Install/Remove Without Pipe System Dislocation
  • Ability To Throttle Flow. Available In Large Diameters
  • Rotation: Quarter-turn
  • Applicable Standard: GB, ANSI, JIS,DIN
  • Connection Type: Flange End
  • Suitable Medium: Water, Oil, Air, Gas, etc

technical parameters of valve body

Disc Material 3.4, 316, 316L, 1.4529, 2507 Acting Model Double Acting/Spring Return
Air Supply Pressure 2.5 to 8 Bar Certification ISO 9001, CE, TUV, SGS
Applicable Standard GB, ANSI, JIS,DIN Accessories Positioner,Limit Switch,F.R.L
Port Size 2″-20″ End Connection Flange
Operating Pressure 1.0-6.4 MPA Media Water, Oil, Air, Gas etc.
Body Material: Cast Iron, SS, WCB Working Temperature -30°C to 180°C
Sealing Material NBR, EPDM, PTFE etc. Structure Midline Structure / A-type


flanged pneumatic actuated butterfly valve


technical parameters of valve actuator

Air Supply Pressure 2.5 to 8 bar
Double Acting Type  Air to open, air to close, air supply failure to keep the current position
Single Acting (Spring Return) Air to open, interrupt air to close, air failure to close
Optional Accessory Reversing solenoid valve, air filter reducing valve, positioner, handle manual, lock up valve

Accessories of Pneumatic Valve (1)

pneumatic operated ball valve with F.R.L Unit
pneumatic operated ball valve with F.R.L Unit
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