GMK High Performance Butterfly Valve with Pneumatic Actuator

If you need a butterfly valve that can handle liquids and gases that standard valves can’t, look no further than the GMK High-Performance Butterfly Valve with Pneumatic Actuator. The PTFE seats used in their construction make them resistant to chemical reactions and corrosion in gases, steam, and liquids. High-performance butterfly valves use a robust substance like graphite to seal the seat, as opposed to the elastomers used in standard butterfly valves. Furthermore, they are available in widths up to 60 inches, allowing for their use in expansive settings. High-performance butterfly valves are available to meet the needs of any industry, regardless of the noxiousness of the substance being processed. Stem seal extensions can be added to a high-performance butterfly valve to ensure leak-proof emissions control, making it ideal for use in applications where fugitive emissions are a concern. If you need to insulate your pipes from extremely cold temperatures, look for high-performance butterfly valves with pressurized neck extensions. Carbon steel, stainless steel, and other metals are all used to make high-performance butterfly valves. Due to the welding process, the valve can tolerate heat from -320 degrees Fahrenheit to 1200 degrees Fahrenheit, as well as pressure from 0 to 1440 PSI. Most high-performance butterfly valves feature an internal stop to prevent over-travel and a movable packing gland to seal against leaks from the outside.

  • Size:DN50-1000(2”-40”)
  • Body type:Straight-through type
  • Pressure:150LB, 300LB, 600LB, 900LB, 1500LB
  • Bonnet type:Standard integral type
  • Flow characteristic:Approximately equal percentage

CE Certification

ISO Standards

Warranty Included



  • Due to their reduced price compared to other varieties of control valves, they are widely utilized in applications demanding huge diameters and high temperatures.
  • To avoid control issues caused by variations in process load, this type of valve must be sized and applied with care.
  • For applications that have a steady stream of processing, perform admirably.
  • When designing with a defined shape, designers can increase the control range to match that of a segmented ball valve.
  • Wafer, lugged, and double-flanged end connections are all feasible options.

The high-performance butterfly valve adopts the design of a double-eccentric structure.

The shaft carries out double deviation from the structural center of the body and makes the disc leave the sealing seat instantly when it is opened in conjunction with the arc sealing face design of the disc, so as to reduce the friction of the sealing face.

The disc has good sealing performance during closing. In addition to realizing effective compensation for the seat seal, the central self-positioning sealing seat structure design and the unique seat compensation sealing design reduce the friction during opening and closing, greatly reduce the operating force of the valve and effectively enhance the control precision of the butterfly valve.


Size DN50-1000(2”-40”)
Body type Straight-through type
Pressure 150LB, 300LB, 600LB, 900LB, 1500LB
Bonnet type Standard integral type
Trim features Double-eccentric structure, compensation type sealing seat, disc arc surface sealing
Flow characteristic Approximately equal percentage
Pressure class PN1.6, 4.0(ANSI 150, 300LB)
Leakage class ASME B16.104 Ⅵ(standard type seat)
Pipe connection type Wafer type, flange type
Actuator type Pneumatic piston actuator, electric actuator, worm gear hand operating

The 70E00 Series butterfly valve is featured by stable and reliable sealing performance, long service life, etc. It is suitable for control and shut-off applications of common corrosive gases and liquid media.

Can we order goods from you directly?
Yes, we look forward to receiving your order. However, please note our minimum purchase quantity. If you require smaller quantities we will be happy to arrange an individual delivery. We would be delighted to assist you.
Can I get a discount?
This depends on the specific situation, you can call directly to consult.