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Product Name:Bolted Bonnet Knife Gate Valve
Bolted Bonnet Knife Gate Valve

Design and manufacture: JB/T8691-1998
Structural length: GB/T15188.2-94
Flange connection: GB/T9113.1-2000 JB/T79-94
Testing and inspection: GB/T13927-92

Main parts materials
Body/Bonnet
Carbon steel, stainless steel
Disc
Stainless steel
Stem
Stainless steel
Seal Ring
Rubber, PTFE, stainless steel,hard alloy
 
Performance specification
Nominal pressure
PN
Shell test
1.5 X PN
Leak test
1.1 X PN
Operating temperature
Rubber less than 80oC, PTFE less than 180oC, hard sealing less than 425oC
Working medium
paper pulp, sewage, coal slurry

Connection dimension                                 Unit:mm
Nominal pressure(MPa)
Nominal diameter(mm)
L
D
D1
D2
H
N-M
D0
1.0
150
70
280
240
210
475
8-M20
280
200
80
335
295
265
540
8-M20
360
250
85
390
350
320
630
12-M20
360
300
100
440
400
368
480
12-M20
400
350
100
500
460
428
885
16-M20
400
400
110
565
515
782
990
16-M22
400
450
120
615
565
532
1100
20-M22
530
500
130
670
620
585
1200
20-M22
530
600
140
780
725
685
1450
20-M27
600
700
165
895
840
800
1700
24-M27
600
800
190
1010
950
905
2000
24-M30
680
900
200
1110
1050
1005
2300
28-M30
680
1000
 
1220
1160
1150
2780
28-M33
Electric operated optional
1200
 
1450
1380
1325
3360
32-M36
1400
 
1675
1590
1525
3920
36-M39
1600
 
1915
1820
1750
4480
40-M45
This product is also available for gearbox, hydraulic, pneumatic, electric operated. Please contact us for more information.

 
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