Product Main

Specifications

Knife Gate Valve Standard:
1, Design standard: GB12235-59
2, Face to Face : GB12221-89
3, Flange: JB/T79-94
4, Inspection and Testing: GB13927 


Materials list:
part name
body/bonnet
disc
stem
yoke nut
packing
gasket
material
CF8
F304
F304
QAL-4
PRFE
PTFE
copper alloy
F304
F304
QAL-4
PRFE
PTFE
 
 
1.6MPa main connection dimension and weight
 
 
size
DN
15
20
25
32
40
50
65
80
100
125
150
200
250
300
350
400
L
mm
130
150
160
180
200
230
290
310
350
400
480
600
650
750
850
950
H
mm
200
243
253
280
312
321
325
355
415
460
510
700
975
1115
1250
1380
W
mm
120
140
160
160
200
200
240
240
280
320
360
560
600
700
800
900
weight
kg
5
6.5
7
13.5
16
32
45
60
80
107
134
268
449
663
750
1170
 
2.5MPa main connection dimension and weight
 
size
DN
15
20
25
32
40
50
65
80
100
125
150
200
250
300
350
400
L
mm
130
150
160
180
200
230
290
310
350
400
480
600
650
750
850
950
H
mm
200
243
253
280
312
321
325
355
415
460
510
700
975
1115
1250
1380
W
mm
120
140
160
160
200
200
240
240
280
320
360
560
600
700
800
900
weight
kg
5
6.5
7
13.5
16
32
45
60
80
107
134
268
449
663
750
1170
 
4.0MPa main connection dimension and weight
 
size
DN
15
20
25
32
40
50
65
80
100
125
150
200
250
300
350
400
L
mm
130
150
160
180
200
230
290
310
350
400
480
600
650
750
850
950
H
mm
200
243
253
280
312
321
325
355
415
460
510
700
975
1115
1250
1380
W
mm
120
140
160
160
200
200
240
240
280
320
360
560
600
700
800
900
weight
kg
5
6.5
7
13.5
16
32
45
60
80
107
134
268
491
705
850
1234