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API 6D Pipeline Valves

Buried City Gas Slab Gate Valves With Gas Exhaust

Buried City Gas Slab Gate Valves With Gas Exhaust

    The YFL buried city gas slab gate valve with gas exhaust is specially designed for natural gas, liquefied petroleum gas, coal gas transmission pipeline to solve the sealing problem and open failure caused by gas coking and achieve excellent sealing performance and long service life.

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  • Features
  • Specification

  • The YFL city gas slab gate valve seat ring adopts the floating seat ring structure with O-type seal ring seal and pre-tightening force to achieve inlet and outlet bidirectional seal and the open torque with this structure is only 1/2 that of the normal valve, able to open and close the valve easily;
  • The seat ring uses the sealing face lined with PTFE to has double seals of PTFE to metal and metal to metal, The PTFE sealing face also can remove the dirt on the wedge;
  • The external surface of YFL buried type city gas slab gate valve is corrosion resisting treated with epoxy coal bitumen and can be the same duration with the pipeline;
  • Buried underground with gas exhaust is available;
  • Non-rising handwheel;
  • With or without through conduit available.

City gas slab gate valvesCity gas slab gate valves with gas exhaustPN64 DN100 BW ends fuel gas slab gate valves

Product range:

  • Size: DN25DN1100 1’’ 44’’
  • Pressure rating: PN16 150lbs
  • End connection: Flanged RF BW
  • Body materials: WCB LCB CF8 CF8M etc.
  • Seat materials: A105+PTFE LF2+PTFE F304+PTFE F316+PTFE
  • Wedge materials: A105+ENP 16Mn+ENP A240 304 A240 316
  • Operation: handwheel gear electric pneumatic

Technical standards:

  • Design: API 6D
  • Face to Face: API 6D
  • Flanged ends: ASME B16.5
  • Test and inspection: API 598