¡¡¡¡¡ô BELLOWS SEALED SHUT-OFF VALVE
  
----------------------------------------------------------------------------------------------------
¡¾ GENERAL ¡¿

¡¡¡¡Bellows sealed shut-off valve is another new type and high grade product of our factory, which is designed on the basis of Western Europen product and according to the Internal facts. The valve sealed by bellows, it cmpletely overcomes defects of escaping, emitting, dripping, leaking, ect. The valve used for gas and liquid of poisonous, harmful, emitting, leaking, emitting, dripping, leaking, etc. The valve used for gas and liquid of poisonous, harmful, corrosivity, precious high temperature (300¡æ) essentially. It has advantage of protecting enironment, conservating energy, reducing cost and improving working conditions.

¡¾ MAIN PARTS AND ¡¿

DWG.
NAME
MATERIAL
DWG.
NAME
MATERIAL
1
VALVE BODY CAST-STEEL NON-RUST STEELBRONZE
6
STEM NON-RUST STEEL 2Cr13 1Cr18Ni9Ti
2
BONNET CAST-STEEL NON-RUST STEELBRONZE
7
HANDLE CAST-STEEL
3
VALVE BASE NON-RUST STEEL 1Cr18Ni9Ti
8
CARRIER¡¢GASKET FLEXIBLE GRAPHITE
4
VALVE DISC NON-RUST STEEL 2Cr13 1Cr18Ni9Ti
9
BOLT NUT CARBON STEEL
5
BELLPWS NON-RUST STEEL 1Cr18Ni9Ti
10
SEAL COVER NON-RUST STEEL Cr18Ni9Ti

¡¾ MARK FOR EXAMPLE¡¿¡¡¡¡SHUT-OFF VALVE JZG A 25050 ¡õ

¡¡¡¡¡¡¡¡¡¡¡¡¡¡JZG¡ª¡ªWorks Code
¡¡¡¡¡¡¡¡¡¡¡¡¡¡A¡ª¡ªType Of Valve£¨A£ºThrough Type£» B£ºBangle type£©
¡¡¡¡¡¡¡¡¡¡¡¡¡¡25¡ª¡ªNominal Pressure£¨PN16¡¢PN25¡¢PN40£©
¡¡¡¡¡¡¡¡¡¡¡¡¡¡050¡ª¡ªLatus Rectum£¨DN15-DN300£©
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡õ¡ª¡ªMaterial Of Valve Body And Valve Cover(ZG-Casting Stree; BX-Staimless Steel;QT-Bronze)
---------------------------------------------------------------------------------------------------- ¡¾ STRUCTURAL DIMENSION ¡¿¡¡SHOW AS FIG 1.FIG2,AND TABLE 1


FIG.1 A TYPE

FIG.2 B TYPE

Nominal
Pressure
Structural Dimension
¦µC
PN16
PN25
PN40
Quality(Kg)
L
H
PN16
PN25
PN40
DN
A
B
A
B
PN16 PN25
PN40
¦µD
¦µ
n-d
¦µD
¦µ
n-d
¦µd
¦µ
n-d
A
B
A
B
A
B
15
130
90
202
177
125
125
95
65
4-14
95
65
4-14
95
65
4-14
3.7
4
4.3
4.6
4.3
4.6
20
150
95
205
180
125
125
105
75
4-14
105
75
4-14
105
75
4-14
4.4
5
4.8
6.4
4.8
6.4
25
160
100
205
180
125
125
115
85
4-14
115
85
4-14
115
85
4-14
7
8.5
6.3
6.7
6.3
6.7
32
180
105
214
189
125
125
140
100
4-18
140
100
4-18
140
100
4-18
8.8
9.2
7.3
7.5
7.3
7.5
40
200
115
230
205
150
150
150
110
4-18
150
110
4-18
150
110
4-18
12.2
13.2
10.3
11.3
10.3
11.3
50
230
125
237
212
150
150
165
125
4-18
165
125
4-18
165
125
4-18
16.1
16.5
12.6
12.7
12.6
12.7
65
290
145
250
225
175
175
185
145
4-18
185
145
8-18
185
145
8-18
21.4
22
19
17.5
19
17.5
80
310
155
285
255
175
225
200
160
8-18
200
160
8-18
200
160
8-18
33
30
25
22
25
22
1000
3500
1750
3670
3210
225
300
2200
1800
8-18
2350
1900
8-22
2350
1900
8-22
51
45
39.5
34
39.5
34
125
400
200
408
373
225
300
250
210
8-18
270
220
8-26
270
220
8-26
69
64
56
49
56
49
150
480
225
480
445
300
300
285
240
8-22
300
250
8-26
300
250
8-26
92
80
82
60
82
60
175
550
250
505
470
400
-
315
270
8-22
350
295
12-26
350
295
12-30
105
85
108
84
-
-
200
600
275
530
510
400
-
340
295
12-22
375
320
12-26
375
320
12-30
180
140
168
124
-
-
250
730
325
665
595
520
-
405
355
12-26
450
385
12-30
450
385
12-33
265
205
238
153
-
-
300
850
375
720
620
520
-
460
410
12-26
515
450
12-30
515
450
12-33
360
230
339
261
-
-