GMK Metal To Metal Seat Ball Valve

After realizing the limitations of their soft-seat equivalents, manufacturers developed metal-seated ball valves. Oil refineries, petrochemical plants, mining operations, pulp and paper mills, iron and steel mills, electric power generation, and water treatment plants can all benefit from their use because of their resistance to high temperatures, cryogenic conditions, abrasive mediums, slurries, and the need for flow control. Ball valves are a type of quarter-turn, the low-torque valve that offers low flow resistance and is used in on/off utility and process applications. Even though they have outstanding control characteristics and a straight-through design, they are rarely employed for throttling. Many ball valves use polytetrafluoroethylene (PTFE) or nitrile butadiene rubber for their soft-seat inserts since these materials are thermoplastic and highly resistant to wear (NBR). 316 stainless steel or Monel are common examples of metals used for the seat in metal-seated ball valves. You should only use thermoplastic sealing in sterile environments. They shouldn’t be subjected to harsh conditions like hot or severely low temperatures, or to any kind of grit or grime. Metal-seated ball valves are frequently used in harsh service environments.

  • Size:2″-24″
  • Rating:150LB, 300LB, 600LB, 900LB, 1500LB
  • Material:WCB, LCB, LCC, WC6, WC9, C5, C12, C12A, CF8, CF8M, CF3, CF3M, CN7M, Alloy 20, B148, UB6, Hastelloy C etc
  • Connection:Flanges, RTJ flange, butt weld, hub end, groove
  • Operate :Hand level, gearbox, pneumatic actuator

CE Certification

ISO Standards

Warranty Included



There are a few different types of ball valve seats, and each one has its own set of benefits and drawbacks.

  • Our Zero-leakage function will boost production rates by preventing the loss of any raw materials.
  • The reduced total cost of ownership: our goods outlast the competition by a wide margin, so you won’t have to spend as much money on repairs and replacements.
  • Our products at GMK are created to order, so you can rest assured that we will supply you with the ideal valve for your facility. To meet the specific needs of each customer’s manufacturing facility, each valve we make is one-of-a-kind.
  • The highest regard for quality and the provision of the finest product possible is central to our principles and values. For your peace of mind, we have quality control specialists examine each and every manufactured piece of equipment, checking off each and every item on your list.
  • The level of security is unparalleled.
  • GMK operates according to a rigid approach to produce the safest product available. We have put our products through extensive testing to guarantee they will function properly in the event of an unexpected emergency.


  • Two pieces or Three pieces design
  • Floating ball or Trunnion mounted ball, Anti-blow out stem
  • Full Port Or Reduced Bore
  • Fire-safe design and Anti-Static device.
  • ISO 5211 mounting design upon request, suitable for various driving types
  • NACE MR-01-75
  • Maximum temperature: 400
  • The specially-designed compensatory movable valve seat construction is made from metal which is of great reliability in its sealing performance.
  • High precision ball& High tightness seat
  • Long-life ball&seat
  • The best fire safe and static resistance safety
  • The metal-to-metal ball valve adopts a spring seat structure, which can push upstream seat tightly against the ball surface creating a reliable seal even if extremely low pressure.
  • Valve stuck under the high-temperature prevented case of high-temperature working condition, the valve seat and ball would possibly get stuck due to heat expansion, and the valve could not be open. Our metal-to-metal seated ball valves employ the design of beveling spring loading, which would absorb the heat expansion of parts caused by the beveling spring. Then, it is ensured that the valve would not get stuck and realize easily open and close in case of high-temperature conditions.


Size 2″-24″
Rating 150LB, 300LB, 600LB, 900LB, 1500LB
Material WCB, LCB, LCC, WC6, WC9, C5, C12, C12A, CF8, CF8M, CF3, CF3M, CN7M, Alloy 20, B148, UB6, Hastelloy C etc
Connection Flanges, RTJ flange, butt weld, hub end, groove
Operate Hand level, gearbox, pneumatic actuator
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: API6D, ASME B16.34
  • Pressure-temperature rating: ASME B16.34
  • Face to face(end to end): ANSIB16.10
  • End Connection: 2″-24″ ASME B16.5; 26″ -42″ ASME B16.47; B.W end ASME B16.25
  • Test and inspection: API598, API6D
  • Fire safe design: API607, API6FA
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.