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GB Wedge Gate Valve
Category£ºGate Valve Normal
Click: 0 2007-08-22
 
The purpose of GB Wedge Gate Valves
API Gate Valve is designed applicable for pipelines of various working conditions such as petroleum, chemical engineering, thermal power station, etc. acting to connect and cut off the medium in the pipe..
Characteristics
¢ñ.Gate valves can not be used for regulate flow, fluid resistance, The seal face is brushed the medium with the corrosion is small.
¢ò.The open and close save effort.
¢ó.The medium flows does not limits, does not reduce depressurize.
¢ô.Structure is simple, structure dimension is short, manufacture’s technology capability and suitable many areas.
Design and Manufacture Standard
Design and manufacture:GB/T12234
Flange end dimension:JB/T79
Pressure and temperature:GB/T9131
Test and inspection:JB/T 9092
Main Function Specification

Norminal Pressure(MPa)
Shell Test(MPa)
Test Pressure(MPa)
Back Seat Test(MPa)
Water seal test
Air seal test
1.6
2.4
1.8
0.6
1.8
22.5.
3.8
2.8
0.6
2.8
54.0
6.0
4.4
0.6
4.4
6.4
9.6
7.0
0.6
7.0
10.0
15.0
11.0
0.6
11.0
16.0
24.0
18.0
0.6
18.0

Main Parts Material

Body and Bonnet
Disc and Seat
Stem
Packing
Handwheel
Applicable Medium
Temperature
Carbon steel
 
 
carbon steel with hard alloy or stainless steel
Cr. stainless steel
Graphite asbestos coils
Foraeable cast-iron
water,steam and oil
425
Cr-Ni-Ti Steel
stainless steel with hard alloy or stainless steel
Cr-Ni-Ti Stainless Steel
dipping PTFE
Forged cast iron
Nitric acid
200
Cr-Ni-Mo-Ti Steel
stainlesssteeel or hard alloy
Cr-Ni-Ti Stainless Steel
dipping PTFE
Forged cast iron
Acetic acid
200
Cr-Mo Steel
alloy steel with hard alloy
Cr-Mo-Al steel
dipping PTFE
Forged cast iron
water,steam and oil
550

Outline Drawing
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