波纹管截止阀内部采用波纹管结构,不锈钢的波纹管下端焊接在阀杆上,以防止工艺流体浸蚀阀杆。另一端置于阀体和阀盖之间构成静密封。采用双重的密封设计若波纹管失效阀杆填料也会避免泄漏,波纹管焊于阀杆保持稳定的运行性能,避免由于阀塞振动引起阀杆振动。zui适用于蒸汽、易燃、易爆、导热油、高纯度、有毒等介质的管路上。
波纹管截止阀产品特点:
1、产品结构合理、密封性能可靠、造型美观;
2、密封面堆焊Co基硬质合金、耐磨、耐腐、抗摩擦性能好、使用寿命长;
3、阀杆调质及表面氮化处理,有良好的抗腐和抗摩擦性能;
4、直角式德标波纹管截止阀双重密封,性能更可靠;
5、阀杆升降位置指示,更直观;
6、零件材质,法兰和对焊编号尺寸可根据实际工况或用户要求合理选配,满足各种工程需要。
技术规范
结构长度 face to face dimension
|
DIN3202
|
连接法兰 flanged ends
|
DIN2543-2545
|
试验和检验 test&inspection
|
DIN3230
|
产品性能规范
公称压力(MPa)
nominal pressure
|
壳体试验压力(MPa)
shell test
|
密封试验压力(MPa)
sealing test
|
适用温度(℃)
suitable temp
|
适用介质
suitable madium
|
1.6
|
2.4
|
1.76
|
-20℃-450℃
|
水、蒸汽、油品等
water,steam,oil,etc.
|
2.5
|
3.75
|
2.75
|
||
4.0
|
6.0
|
4.4
|
主要零部件材质
序号NO.
|
名称part name
|
材质material
|
1
|
阀体body
|
GS-C25、CF8、CF3
|
2
|
阀瓣disc
|
2CR13、F304、F316
|
3
|
轴销hinge pin
|
F304、F316
|
4
|
波纹管组件bellows combination
|
F304、F316L
|
5
|
阀盖bonnet
|
GS-C25、CF8、CF3
|
6
|
填料packing
|
柔性石墨Flexible graphite、PTFE
|
7
|
压套gland
|
25#、F304、F316
|
8
|
定位片locator
|
25#、F304、F316
|
9
|
阀杆螺母stem nut
|
铜合金ZQA19-4
|
10
|
手轮hand wheel
|
碳钢carbon steel
|
11
|
并帽cap
|
25#
|
12
|
油杯oil cup
|
黄铜brass
|
13
|
六角螺母hexagon nut
|
ASTMA193 2H、A193-8、A193-8M
|
14
|
双头螺栓bolt
|
ASTMA193 B7、A193-B8、A193-B8M
|
15
|
垫片gasket
|
柔性石墨+不锈钢
flexible graphite+stainless steel、PTFE
|
16
|
阀杆stem
|
2Cr13、F304、F316
|
波纹管截止阀外形尺寸各连接尺寸
PN
|
DN
|
L
|
D
|
D1
|
D2
|
B
|
f
|
H
|
N-ф
|
H
|
1.6
|
15
|
130
|
95
|
65
|
45
|
16
|
2
|
191
|
4-14
|
6
|
20
|
150
|
105
|
75
|
58
|
18
|
2
|
191
|
4-14
|
6
|
|
25
|
160
|
115
|
85
|
68
|
18
|
2
|
197
|
4-14
|
8
|
|
32
|
180
|
140
|
100
|
78
|
18
|
2
|
200
|
4-18
|
8
|
|
40
|
200
|
150
|
110
|
88
|
18
|
3
|
218
|
4-18
|
13
|
|
50
|
230
|
165
|
125
|
102
|
20
|
3
|
220
|
4-18
|
13
|
|
65
|
290
|
185
|
145
|
122
|
20
|
3
|
238
|
4-18
|
16
|
|
80
|
310
|
200
|
160
|
138
|
20
|
3
|
257
|
4-18
|
20
|
|
100
|
350
|
220
|
180
|
158
|
20
|
3
|
340
|
4-18
|
25
|
|
125
|
400
|
250
|
210
|
188
|
22
|
3
|
360
|
4-18
|
32
|
|
150
|
480
|
285
|
240
|
212
|
22
|
3
|
390
|
8-22
|
40
|
|
200
|
600
|
340
|
295
|
268
|
24
|
3
|
530
|
12-22
|
50
|
|
2.5
|
15
|
130
|
95
|
65
|
45
|
16
|
2
|
191
|
4-14
|
6
|
20
|
150
|
105
|
75
|
58
|
18
|
2
|
191
|
4-14
|
6
|
|
25
|
160
|
115
|
85
|
68
|
18
|
2
|
197
|
4-14
|
8
|
|
32
|
180
|
140
|
100
|
78
|
18
|
2
|
200
|
4-18
|
8
|
|
40
|
200
|
150
|
110
|
88
|
18
|
3
|
218
|
4-18
|
13
|
|
50
|
230
|
165
|
125
|
102
|
20
|
3
|
220
|
4-18
|
13
|
|
65
|
290
|
180
|
145
|
122
|
22
|
3
|
238
|
4-18
|
16
|
|
80
|
310
|
200
|
160
|
138
|
24
|
3
|
257
|
4-18
|
20
|
|
100
|
350
|
235
|
190
|
162
|
24
|
3
|
340
|
8-22
|
25
|
|
125
|
400
|
270
|
220
|
188
|
26
|
3
|
360
|
8-26
|
32
|
|
150
|
480
|
300
|
250
|
218
|
28
|
3
|
390
|
8-26
|
40
|
|
200
|
600
|
360
|
310
|
278
|
30
|
3
|
530
|
12-26
|
50
|
|
4.0
|
15
|
130
|
95
|
65
|
45
|
16
|
2
|
191
|
4-14
|
6
|
20
|
150
|
105
|
75
|
58
|
18
|
2
|
191
|
4-14
|
6
|
|
25
|
160
|
115
|
85
|
68
|
18
|
2
|
197
|
4-14
|
8
|
|
32
|
180
|
140
|
100
|
78
|
18
|
2
|
200
|
4-18
|
8
|
|
40
|
200
|
150
|
110
|
88
|
18
|
3
|
218
|
4-18
|
13
|
|
50
|
230
|
165
|
125
|
102
|
20
|
3
|
220
|
4-18
|
13
|
|
65
|
290
|
185
|
145
|
122
|
22
|
3
|
238
|
4-18
|
16
|
|
80
|
310
|
200
|
160
|
138
|
24
|
3
|
257
|
8-18
|
20
|
|
100
|
350
|
235
|
190
|
162
|
24
|
3
|
340
|
8-22
|
25
|
|
125
|
400
|
270
|
220
|
188
|
26
|
3
|
360
|
8-26
|
32
|
|
150
|
480
|
300
|
250
|
218
|
28
|
3
|
390
|
8-26
|
40
|