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Product Name:Manual Knife Gate Valve
Butt-clamp 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/Bracket
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
Syrup, paper pulp, sewage, coal slurry, dust, slag-water mix

Connection dimension                           Unit:mm 
Nominal pressure(MPa)
Nominal through diameter(mm)
L
D
D1
D2
H
N-M
D0
1.0
50
48
160
125
100
285
4-M16
180
65
48
180
145
120
298
4-M16
180
80
50
195
160
135
315
4-M16
220
100
50
215
180
155
365
8-M16
220
125
57
245
210
185
400
8-M16
230
150
57
280
240
210
475
8-M20
280
200
70
335
295
265
540
8-M20
360
250
70
390
350
320
630
12-M20
360
300
76
440
400
368
780
12-M20
400
350
76
500
460
429
885
16-M20
400
400
89
565
515
482
990
16-M22
400
450
89
615
565
532
1100
20-M22
530
500
114
670
620
585
1200
20-M22
530
600
114
780
725
685
1450
20-M27
600
700
130
895
940
800
1700
24-M27
600
800
130
1010
950
905
2000
24-M30
680
900
140
1110
1050
1005
2300
28-M30
680
This product is also available for gearbox, hydraulic, pneumatic, electric operated. Please contact us for more information.
 
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