High Performance Butterfly Valve

The GMK high-performance butterfly valve, also known as a double offset butterfly valve, includes a revolutionary design that guarantees durable durability and exceptionally simple maintenance in the field. This kind of butterfly valve is also known as a double-offset butterfly valve. The Series GMK valve has been shown via both external and internal testing to have an exceptional service life capability and a zero leakage shutdown. Shortly after being released to the market, the GMK valve won Chemical Processing magazine’s Vaaler Award for Best Product thanks to its one-of-a-kind and patented design. The straightforward and forward-thinking design provides durable durability as well as exceptionally simple and straightforward maintenance out in the field.

  • Product name:High Performance Butterfly Valve
  • Size:DN50-DN2000
  • Rating:150LB-900LB
  • Material:Cast iron,Ductile iron,WCB,LCB,LCC,WC5,WC6,WC9,CF8,CF8M,CF3,CF3M,B148 ,UB6,CN7M,CK20, etc
  • Connection:Wafer type,Lug type,Flange
  • Operate:Handwheel,Gearbox,Pneumatic

CE Certification

ISO Standards

Warranty Included


The GMK’s High-Performance Butterfly Valve which is constructed of stainless steel is an innovative piece of machinery that is world-leading in terms of its cutting-edge technology. The construction of this butterfly valve is one-of-a-kind, and although it only requires a fair amount of torque to operate, it delivers exceptionally dependable sealing performance throughout a broad range of operating settings. This is accomplished despite using only a reasonable amount of torque. In addition to this, the valve requires a little amount of torque. Stainless steel is a material that would be a good option if you were looking for something that would deliver high performance in terms of its resistance to corrosion.


  • Superior service life capability with 0% leakage shut down for over 100,000 cycles has been shown via independent and internal testing.
  • Using any of GMK’s pneumatic or electric actuators, GMK valves may be easily and affordably automated.
  • The GMK high-performance valve offers the best combination of quality and price for your needs.
  • After being subjected to over one hundred thousand cycles at 720 psi (49.6 Bar), the seat showed no signs of wear.


  • Double eccentric
  • Soft seat
  • High performance
  • High pressure resistant,corrosion resistant
  • Both have adjust anf shut-off function
  • Bi-direction seal or sinle direction seal
  • Easy installation and maintenance.It can be mounted wherever needed.
  • Top flange ISO 5211 for optional
  • Long service life and energy-saving
  • Low maintenance costs
  • Small volume,light weight
  • Non fire safe upon optional
  • Torque is a little lighter than metal to metal seal
  • Valve seat material can be PTFE,RPTFE etc
  • Disc and Stem connection can with Pin or without pin connection
Product name High Performance Butterfly Valve
Size DN50-DN2000
Rating 150LB-900LB
Material Cast iron,Ductile iron,WCB,LCB,LCC,WC5,WC6,WC9,CF8,CF8M,CF3,CF3M,B148 ,UB6,CN7M,CK20, etc
Connection Wafer type,Lug type,Flange
Operate Handwheel,Gearbox,Pneumatic
Temperature: -29℃ to 250℃
  • Design and Manufacture: API 609,MSS SP-67
  • Pressure-temperature rating:ASME B16.34
  • Face to Face(end to end): ANSI B16.10
  • End Connection: Flange end 2″-24″ ASME B16.5,26″-42″ ASME B16.47;BW end ASME B16.25
  • Test and inspection: API 598,ISO 5208

Light torque,Bi-direction seal with zero leakage,one million times operating

Applicable Standards:

  • Design: API 609
  • Face to Face: API 609
  • Flanged Ends: ASME B16.5, ASME B16.47A, JIS, DIN EN1092
  • Testing: API 598
  • Operation: Bare Shaft,lever operator,gearbox operater
  • Size Range: 2”-60”, DN50-DN1500
  • Pressure Rating: Class150-Class600, PN6-PN100
  • Body Material: Carbon Steel or Alloy Steel, for example, WCB, LCB, WC6,
  • WC9, 2205, 2507, Monel, 20# and so on
  • Seat Material: PTFE, RPTFE, PPL
  • Connection Type: Wafer ,flange,lug
  • Temperature: -29℃ to 250℃
Chemical and petrochemical industry
air separation plant
desailnator and Salt industry
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.