Gate Valve

Metal Seat Wedge Bypass Gate Valve

TANA Bypass gate valves have the back seating design.For stainless steel gate valve, the back seat is machined directly in the bonnet or is machined after welding .When the gate valve is at fully open position, the sealing of the back seat can be very reliable .However, as per the requirement of API600, it is not advisable to add or change packing by the mean of back seating when the valve is pressure containing.


  • Size:2"-56"
  • Pressure:Class150~2500
  • OS&Y, rising stem ,outside screw and yoke
  • Flexible wedge gate valve ,solid wedge gate valve
  • BB,Bolted bonnet,Welded seat ring
  • Flange or Butt welding
  • Metal seat wedge bypass gate valve


Design and Manufacture:ANSI B16.34,API600,API6D,API603,BS1414,DIN/EN 1984

Face to face(end to end:ANSI B16.10,API6D,BS EN558

Flanged connection:2"~24"to ANSI B16.5,22",26"~36"to MSS-SP-44 to API 605 ,EN1092 on Request

Test and inspection:API 598,API6D,EN12266

Pressure&Temperature:ANSI 16.34

Butt welded end:ANSI B16.25

shell wall thickness:24"and smaller to API600

26"and larger to manufacturer's standard

6" and smaller valves have a one-piece bonnet and yoke design

8" and large valves have a split bonnet and yoke design

10" and larger valves have a split bonnet and yoke design.

Material:ASTM A216 WCB WCC;ASTM A217 WC1 WC6 WC9;ASTM A351 CF8,A351 CF8M, A351 CF3,A351 CF3M,A351 CN7M;.ASTM A352 LC1 LCB LCC LC3 or by customers

For more details, please download the catalogue for reference or contact with us.

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