Your Professional Valve Solution

The Twin Seal valve is an alternative to the original two-valve system with just one double-seated bubble-tight valve. The upstream and downstream seals provide the same function as the two block valves. The body (serving as a spool piece) bleed verifies seal integrity.
Design Feature
  • Full bore/reduce bore
  • Double block and bleed
  • Double seal
  • Close quickly
  • Zero leakage
  • Anti-static design
  • Fire safe design
Design Standard
  • Design: API 6D/API599
  • Face to face: API6D/ASME16.1
  • Test: API598/API6D
  • Fire safe: API607
  • End connection: ASME:16.5
Technical Specification
  • Size: 2”~20”
  • Class: 150#~900#
  • Connection: flange
  • Operation: Manual/ Worm Gear/ Pneumatic actuator/ Electric actuator
  • Temperature: -196°C to +650°C
  • Application: Pipeline/petroleum refining/chemical/water/power plant/mining
Material Option
  • Body: Carbon steel/stainless steel/hastelloy/inconel alloy/monel
  • Trim: A105/SS304/SS316/F304/F316 
  • Stem: 17-4PH/SS316/F316/F6a
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