Nominal Diameter: 15-1000mm
Nominal Pressure: 1.6/2.5/4.0/6.4/10.0MPa
Standard:
|
Design
|
Face to Face
|
Flange
|
Pressure-temp.
|
Inspection and Testing
|
|
GB12234
|
GB12221
|
GB9113 JB79
|
GB9131
|
GB/T13927 HB/T9092
|
Test pressure:
|
Nominal pressure
|
1.6
|
2.5
|
4.0
|
6.4
|
10.0
|
16.0
|
|
Seat
|
2.4
|
3.8
|
6.0
|
9.6
|
15.0
|
24.0
|
|
Water-tight seal
|
1.8
|
2.8
|
4.4
|
7.0
|
11.0
|
18.0
|
|
Upper seal
|
1.8
|
2.8
|
4.4
|
7.04
|
11.0
|
18.0
|
|
Air-tight seal
|
0.4-0.7
|
|||||
Materials list and performance:
|
Body/bonnet/disc
|
Stem
|
Seal surface
|
Gasket
|
Packing
|
Working temp. ℃
|
Media
|
|
WCB
|
2Cr13
|
13Cr
STL Nylon |
Reinforced flexible graphite
1Cr13/flexible graphite OS mid steel 0Cr18Ni9Ti 0Cr17Ni12Mo2Ti XD550F(T) PTFE |
Flexible graphite
reinforced flexible graphite SFB/260 SFP/260 PTFE |
≤425
|
Water, oil, gas, etc.
|
|
WC1
|
38GrMoA1
25Cr2MoV |
≤450
|
||||
|
WC6
|
≤540
|
|||||
|
WC9
|
≤570
|
|||||
|
ZGCr5Mo
|
≤540
|
|||||
|
ZG1Cr18Ni9Ti
|
1Cr18Ni9Ti
|
≤200
|
-
|
|||
|
ZG1Cr18Ni12Mo2Ti
|
1C18Ni12Mo2Ti
|
≤200
|
-
|