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Product Name:ANSI Bellows Seal Gate Valve
ANSI Bellows Seal Gate Valve
It is applicable to the cutting and connection of pipelines medium that are used in various industries such as flue gas uerification plant, gas supply pipeline, vacuum facilities, ammonia facilities, hot water, colding & freezing system, heating technology, steam system, chemical industry, pharmacy, chemical fertilizer, electric power industry etc. The nominal pressure can be fromm 1.0 Mpa to 16.0MPa and the working temperature can be reached to 350 Celsius degree.
 
Main Structural features
1. This product has logical strucure, reliable seal, excellent performance and nice design.
2. The seal surface is overlay welded with hard chrome ally material which is attrition resistant,  corrosion ressistant, has good friction resistant and long life.
3. The stem is quenched and tempered, and its surface is treated by nitriding treatment, thus it has good corrosion resistant and friction resistant.
4. It has double seal capability, thus is more reliable for zero leakage warranty.
5. The stem show the position indicator, thus it is clearer.

Technical specification
Structural formation
BB, BG, OS&Y
Driving maner
Handwheel or motor operated
Design standard
GB12234
Face to face
GB12221
Flange ends
GB9113, JB79, HG20596
Test and inspection
JB/T 9092, GB/T13927
 
Products performance specification
Nominal pressure
(Mpa)
Shell test (MPa)
Sealing test (MPa)
Suitable temperature
Suitable medium
1.6
2.4
1.76
No more than 350oC
Water oil & gas
2.5
3.75
2.75
4.0
6.0
4.4
6.4
9.6
7.04
 
Main parts materials:
NO.
Part name
Material
1
Body
WCB WC1, WC6, WC9, C5 CF8, CF8M, CF3, CF3M
2
Disc
25, 1Cr13, 2Cr13 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti 20Cr1Mo1V, 25Cr2MoV
3
Stem
25, 1Cr13, 2Cr13 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti 20Cr1Mo1V, 25Cr2MoV
4
Bellows
1Cr18Ni9Ti, 304, 316, 304L, 316L
5
Yoke
WCB, WC1, WC6, WC9, C5 CF8, CF8M, CF3, CF3M,
6
Gasket
Flexible graphite+stainless steel, PTFE
7
Bonnet
WCB WC1, WC6, WC9, C5 CF8, CF8M, CF3, CF3M
8
Nut
0Cr18Ni9Ti, 0Cr18Ni12Mo2Ti 35CrMoV, 25Cr2MoV
9
Bolt
0Cr18Ni9Ti, 0Cr18Ni12Mo2Ti 35CrMoV, 25Cr2MoV
10
Packing
Flexible graphite, PTFE
11
Gland
WCB WC1, WC6, WC9, C5 CF8, CF8M, CF3, CF3M
12
Yoke nut
ZQA19-4
13
Handwheel
WCB QT400-18
 
Dimensions and weight for PN16 Nominal pressure
Size
mm
15
20
25
32
40
50
65
80
100
125
150
200
250
300
350
L
mm
108
117
127
140
165
178
190
203
229
254
267
292
330
356
381
H
mm
200
210
250
260
290
370
398
440
490
530
580
670
760
850
950
W
mm
120
140
140
180
200
220
260
280
300
340
400
450
450
500
500
Weight
KG
8
9
10
15
22
30
43
57
73
105
150
190
270
380
480
 
Dimensions and weight for PN25 Nominal pressure
Size
mm
15
20
25
32
40
50
65
80
100
125
150
200
250
300
350
L
mm
140
152
165
178
190
216
241
283
305
381
403
419
457
502
762
H
mm
200
210
250
260
290
370
398
440
490
530
580
670
760
850
980
W
mm
120
140
140
180
200
220
260
280
300
340
400
450
450
500
500
Weight
KG
9
10
12
17
23
34
50
65
82
115
165
210
300
420
540
 
Dimensions and weight for PN40 Nominal pressure
Size
mm
15
20
25
32
40
50
65
80
100
125
150
200
250
300
350
L
mm
165
190
216
229
241
292
330
356
432
508
559
660
787
838
889
H
mm
200
210
250
260
290
370
398
440
490
530
580
670
760
850
980
W
mm
120
140
140
180
200
220
260
280
300
340
400
450
450
500
500
Weight
KG
9
10
12
18
25
38
53
70
88
125
175
225
310
440
560
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