The purpose of Water Seal Gate Valve :
Suitable working pressure 100MPa,working temperature 425¡æ, Suitable medium water, steam, oil and Non-caustic gas.
Characteristics:
¢ñ.S/Y series usually use double disks and bi-directional flexible seal, open and close nimbly,reliable for seal.
¢ò.Have simple in structure, compact reasonable, examine and repair conveniently, operation life long
¢ó.Be used for on and off device on the pipe and must be full open and full closed, can not be used for regulate flow.
¢ô.The connection type are flanged and welded, actuator are gear/handle and electrical.
Design and manufacture standard:
Design and manufacture:GB12234
Flange size: GB9113¡¡JB7490
Pressure and temperature: JB/T74¡¡GB9131
Welded size:-
Test and inspection: JB/T9092¡¡GB13927
Main Function Specification
|
Nominal pressure£¨MPa£©
|
|
Shell test
|
1.0
|
1.6
|
2.5
|
4.0
|
6.4
|
10.0
|
|
Seal test
|
1.5
|
2.4
|
3.8
|
6.0
|
9.6
|
15.0
|
|
Back seat seal test
|
1.1
|
1.8
|
2.8
|
4.4
|
7.0
|
11.0
|
|
Gas Seal Test
|
1.1
|
1.8
|
2.8
|
4.4
|
7.0
|
11.0
|
|
Suitable range
|
|
Model
|
Temperature£¨¡æ£©
|
Suitable medium
|
|
Carbon steel series
|
≤425
|
Water, steam, oil and Non-caustic gas
|
|
Alloy series
|
≤540
|
Main Parts Material
|
Model
|
Part Name
|
|
Body ,Bonnet and York
|
Stem
|
Plate, Disc and Seal face
|
Seat Seal face,
|
Stem Nut
|
Packing
|
|
Carbon steel series£¨C£©
|
WCB
|
1Cr13
or
2Cr13
|
Cr13serise stainless steel or hard alloy
|
Stainless Steel
|
Aluminum Bronze
|
Soft Graphite
|
|
Alloy series£¨I£©
|
WCB Cr5Mol
|
20Cr1Mo1VA
|
Co-Alloy
|
Hard Alloy
|
Aluminum Bronze
|
Soft Graphite
|
Outline drawing
Product
