Power Station Gate Valve
Size Range
1/2"-24"
Materials Grades
WCB, A105N, LCC, LF2, CF8M, 316, 316L, A20, Hastelloy C, Other materials
Pressure Range
Class 150/300/600/900/1500
Trim Materials
TRIM 1,5,8,12,16 & Special Materials
Design Standard
API 600,API 603,API 602,DIN 3352,EN 1984,GOST 3325,BS 1414
Testing Standard
API 598,DIN 3230,EN 12266-1,GOST 9544,BS 6755-1,BS EN 12266-1,BS 5146
End Connections
Raised Face, RTJ, Threaded, Socket Weld, Threaded X Socket Weld
Face to Face
ASME B16.10,EN 558-1,GOST 9544,BS EN 558-1,DIN 3202
Options
NACE, Bevel Gears, Actuation Ready Mounting Pads, Thermal Relief DTR Systems, Double Lead Stem for Quick Run Time
Features
OS&Y, Rising Stem, Flexible Wedge, olted Bonnet, Packing & Gasket (Low Fugitive Emission)
Description
The pressure seal valves are designed in accordance with API600 and ASME B16.34 for service of high temperature and high pressure and are widely used in fossil fuel power plant. Compared with bolted bonnet joint valves, it provides absolute reliable sealing of the bonnet joint, so that the pressure seal valves are more compact and rigid as well as maintenance cost-effective at high temperature and high pressure service.
This kind of gate valve is not only characterized as simple structure and reliable usage, but also able to create slight flexible deformation to compensate the deviation of the sealing face angle generated during processing, thus improving the process performance. In addition, at seat and gate disc seal surface are over-lay with iron-base alloy or Co-base alloy or carbide alloy for long duration.
Technical Specification
Normal Size Range: 2"-24"
Normal Pressure Rating: PN100~PN420, CLASS600~2500
Material: WCB,LCB,WC6, WC9, CF8,CF8M,CF3,CF3M
Temperature Range: -29~425Degree C
Standards compliance
Design and Manufacture:AMSI B16.34,API600 API6D,BS1414
Face to face(end to end):ANSI B16.10,API6D
Flanged cnnection:ANSI B16.5
Butt welded end:ANSI B16.25
Test and inspection:API598,API6D
A.Back up ring:Absors thrust applied by internal pressure
B.Thrust ring:Protects the soft metallic gasket from deformation
C.Gasket:Unique angular design provides superior sealing
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