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Through Conduit Slab Gate Valve Manufacturers

Through Conduit Slab Gate Valve

Through Conduit Slab Gate Valves (Parallel type gate valves, Through Conduit Gate Valves) are widely used in oil, natural gas long-distance pipelines and gas fields as open/close control valves. Valves used in forging or casting body, the gate designed with diversion holes, non-diversion holes; single plate and double plate structure.

Series - 150 To 900

Seat used bi-direction seal seat which mainly based on the metal seat sealing and assisted with soft seat sealing as a second type of seal. The series of parallel type gate valve has rational design, compact structure, sulfur resistance, corrosion resistance, wear-resistant, reliable sealing, and light torque of switches, easy-to-use.

Design Features
  • Full Bore design
  • Self cavity relief
  • Double block & bleed
  • Single disc or double disc
  • Emergency Sealant injection
  • Flanged or butt welding ends
  • Fire safe design to API 6FA/ API 607
  • Diversion hole type or non diversion hole
Product Specifications
  • Size1″~48″ DN25-DN1200
  • Pressure Class "150, 300, 600, 800, 900"
  • End Connection RF, RTJ, BW
  • Body Material Carbon steel, stainless steel
  • Wedge Material 16Mn + ENP/A105 + ENP/1Cr18Ni19/A276-304
  • Seat Material 16Mn + PTFE /A105 + PTFE/1Cr18Ni19 + PTFE/A276-304 + PTFE
  • Stem Material A276-420, 2Cr13, 1Cr18Ni19, A276-304
  • Design Standard JB/T5298, JBT1692, API 6D, ASME 16.34
  • Face to Face Standard API 6D, ASME B16.10, GB/T 12221, GB/T16972, JB/T5298
  • Test Standard JB/T9092, API 6D, API 598
  • Temperature Range -29℃~+121℃
  • Actuator Options Handwheel, Bevel Gear, Pneumatic, Electric
    Structure Style
  • Full Port, OS&Y, Bolted Bonnet
  • Flexible Wedge / Solid Wedge
    Connection Standard
  • Flange Drilling: ASME B16.5, MSS SP44
  • Butt Weld: ASME B16.25, GB/T 12224