HK59-D-G Pneumatic Hard Seated Butterfly Valve
Benefits Of Pneumatic Hard Seat Triple Offset Butterfly Valves:
COVNA Pneumatic Hard Seat Triple Offset Butterfly Valve is a valve that can provide you with a reliable fluid control solution. Metal hard seals are used to withstand high temperatures up to 450 degrees Celsius and 40 bar pressure. Widely suitable for high-pressure and high-temperature pipelines, and help you improve the safety of your project.
The advantages of pneumatic actuators include explosion protection, safety, quick response and low cost. Used with pneumatic components, such as positioners, etc., it can easily realize industrial automation and improve the production efficiency of the project.
Features Of Pneumatic Hard Seated Triple Offset Hard Seat Butterfly Valve:
●Using triple eccentric sealing structure, the wear between the valve seat and the butterfly plate is small, and the sealing surface is wear-resistant, which extends the service life
●The butterfly plate of the large-diameter butterfly valve can adopt a quilted structure, which has the characteristics of high strength, large flow area and small flow resistance.
●It has the dual advantages of metal hard seal and elastic seal. It has excellent sealing performance, corrosion resistance and long service life regardless of low temperature and high temperature
●According to the connection mode, it is divided into pneumatic wafer triple eccentric butterfly valve and pneumatic flange triple eccentric butterfly valve, which can be used in different process pipelines.
Wafer Type
Flanged Type
Technical Parameters Of Pneumatic Triple Offset Hard Seat Butterfly Valve:
| Actuator Type | Double Acting /Spring Return(Single Acting) | Structure | Triple Offset Type |
| Max. Working Pressure | 40 bar | Temperature Of Media | -10℃ to 400℃ |
| Body Material | Stainless Steel 304/316/316L | Suitable Media | Steam, hot oil, hot water, etc |
| Size Range | DN50 to DN600 | Disc Material | Stainless Steel 304/316/316L |
| Connection Options | Flange or Wafer | Stem Material | Stainless Steel 304/316/316L |
Dimension Of COVNA Pneumatic Wafer Hard Seat Butterfly Valves:
Dimension Of COVNA Pneumatic Flanged Hard Seat Butterfly Valves:
Technical Parameters Of COVNA Pneumatic Valve Actuators:
| Structure | Rack and pinion pneumatic valve actuator |
| Mounting | ISO5211, NAMUR, DIN3337 |
| 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. Torque range from 8Nm to 4678Nm |
| Single Acting (Spring Return) | Air to open, interrupt air to close, air failure to close. Torque range from 5Nm to 2792Nm |
| Optional Accessory | Positioner, Limit Switch, F.R.L, Pneumatic Solenoid Valve, Gearbox |
COVNA AW Series Pneumatic Valve Actuators:
AW series high torque pneumatic rotary actuator suitable for the large size ball valve which has higher torque needs. Such as trunnion mounted ball valve. To ensure the valve opens or closes smoothly.
● Double acting type: Torque range from 515Nm to 157,300Nm
● Spring-return type(single-acting type): Torque range from 270Nm to 37,000Nm
.jpg)
