GB T1856-93 Marine Cast Iron Exhaust Stop Valve Box
1. Application
GB T1856-93 Marine Cast Iron Exhaust Stop Valve Box can be used in sea water and fresh water, and it generally used to repair ships and shipbuilding or used in offshore platform.
2. Material
(1) body & cover: gray cast iron
(2) disc: cast tin bronze
(3) seat & stem: aluminum bronze
To meet the different needs of customers, the special materials can be customized according to one's request processing.
3. Nominal Pressure (MPa) & Diameter(mm)
Pressure: 1.0, 0.6
Diameter: 40~150, 200~250
4. Features
(1) Excellent quality and beautiful shape.
(2) We have IACS Certificate such as CCS, ABS, LR etc.
5. Dimensions
Type R & Type S
PN
(MPa)
DN
(mm)
Structure dimension
Thickness
Connection dimension of flange
L1
L2
L3
L4
H
H1
B1
B2
d
D
D1
D2
b
n-d0
Bolt
Th.
R
S
R
S
1.0
40
110
160
380
540
210
370
283
48
95
50
13
8
125
93
74
16
6-15
M14
50
120
180
420
600
230
410
315
58
100
50
15
8
135
103
84
16
6-15
M14
65
130
180
440
620
230
410
345
73
120
50
15
9
155
123
104
15
6-15
M14
80
140
200
480
680
260
460
390
89
130
60
17
9
170
138
118
15
8-15
M14
100
170
230
570
800
290
520
430
110
150
60
17
10
190
158
138
15
8-15
M14
125
200
250
650
900
310
560
490
135
160
60
17
10
215
183
164
15
10-15
M14
150
230
280
740
1020
340
620
560
152
175
60
17
11
240
208
190
16
12-15
M14
0.6
200
280
380
940
1320
446
826
720
208
225
80
21
13
295
264
247
16
12-15
M14
250
400
460
1260
1720
544
1004
870
246
270
80
21
14
365
327
306
18
14-17
M16
Type RS & Type SS
PN
(MPa)
DN
(mm)
Structure dimension
Thickness
L1
L2
L3
L4
H
H1
B1
B2
d
D
D1
D2
b
n-d0
Bolt
Th.
RS
SS
RS
SS
1.0
40
115
180
410
590
230
410
283
48
105
50
13
8
150
110
88
18
4-18
M16
50
125
195
445
640
245
440
315
58
115
50
15
8
165
125
102
20
4-18
M16
65
145
215
505
720
265
480
345
73
135
50
15
9
185
145
122
20
4-18
M16
80
155
230
540
770
290
520
390
89
145
60
17
9
200
160
133
22
8-18
M16
100
175
270
620
890
330
600
430
110
165
60
17
10
220
180
158
24
8-18
M16
125
200
290
690
980
350
640
490
135
180
60
17
10
250
210
184
26
8-18
M16
225
325
775
1100
385
710
560
152
200
60
17
11
285
240
212
26
8-22
M20
0.6
150
275
380
930
1310
470
850
720
208
240
70
21
13
320
280
258
22
8-18
M16
200
325
435
1080
1520
535
970
870
246
280
70
21
14
375
335
312
24
12-18
M16
6. IACS Certificate: ABS, RINA, BV, CCS, DNV, KR, LR, NK.
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