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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.

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Description

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.


Features
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 



Standard
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 

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