GMK Bellow Seal Gate Valve

GMK Bellow Seal Gate Valve reduces energy usage as well as costs associated with maintenance as a result of its reduced resistance to friction. The flow of a process fluid can be completely or partially obstructed or restricted by the use of valves. Gate valves, one of the earliest types of valves, are ideal for on/off liquid applications and are typically seen in older buildings. When a gate valve is opened, a gate that is either rectangular or circular is removed from the path that fluid takes through the valve. Because the diameter of the gate is identical to the diameter of the pipeline when the gate valve is in its fully open position, there is no limitation to the flow of fluid. In a similar fashion, the diameter of the bore is what determines the size of the valve. This full-bore architecture offers very low friction loss, which contributes to the conservation of energy and reduces the cost of ownership.

  • Size:2″-32″
  • Rating:PN16-PN250
  • Material:WCB, LCB, LCC, WC6, WC9, C5, C12, C12A, CF8, CF8M, CF3, CF3M, CN7M, Alloy 20, B148, UB6 904l, Hastelloy C etc
  • End connection:Flanges, RTJ flange, butt weld, hub end, groove
  • Working temperature:-29℃~+350℃
Bellow Sealed Gate Valve GMK
Bellow Sealed Gate Valve GMK

CE Certification

ISO Standards

Warranty Included



  • Ingenious double-seal construction – Even if the bellows fail, the stem packing will keep things from leaking.
  • Secondly, it must have a solid foundation. Because of the high quality of the construction, the seal is always tight and there is no leakage.
  • No leakage of fluids – There is no fluid loss with leak-free performance, which saves on costs, helps the environment, and makes plant machinery safer for workers.
  • Fourth, improved toughness – Co-based cemented carbide is applied to the sealing surface so that it can withstand wear, corrosion, and friction has a long service life, requires less maintenance, and saves money.
  • Operation with no leaks – The valve stem will not leak thanks to the bellows seal construction, and it won’t need any maintenance.
  • The ability to withstand corrosion and friction – Stop valve stems are nitride for improved resistance to corrosion and friction.


  • OS&Y, bolted bonnet
  • This product has a logical structure, reliable seal, excellent performance, and nice design
  • Double bellow & sealing
  • Convenient maintenance, position indicator
  • The seal surface is build-up welding with Co hard alloy, which is attrition-resistant, corrosion-resistant has good friction resistance, and long life
  • Stem quenched and temperature its surface is treated by nitriding treatment, thus it has good corrosion resistant and friction resistant
  • Flexible wedge, fully guide cast wedge



Size 2″-32″
Rating PN16-PN250
Material WCB, LCB, LCC, WC6, WC9, C5, C12, C12A, CF8, CF8M, CF3, CF3M, CN7M, Alloy 20, B148, UB6 904l, Hastelloy C etc
End connection Flanges, RTJ flange, butt weld, hub end, groove
Working temperature -29℃~+350℃
Operation Handwheel, gearbox, pneumatic actuator
Application Petroleum, chemical industry, pharmacy, chemical fertilizer, electric power industry, etc
Supply ability 10000 piece/pieces per month
Port Wenzhou/shanghai
Payment terms L/C, D/A, D/P, T/T
Delivery time 7-10 Working day
  • Design and manufacture: ANSI B16.34, API600, API6D, API602, BS1414
  • Pressure-temperature rating: ASME B16.34
  • Face to face(end to end): ANSI B16.10
  • End connection: Flange end ASME B16.5 from 2″-24″; ASME B16.47 from 26″ -42″ ; B.W end ASME B16.25
  • Test and inspection: API598
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.