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Water Seal Stop Valve

Water Seal Stop Valve

Water seal stop valve is mainly applicable to cut off or connect the medium in the pipeline on the return water condensation system of thermal power plant with nominal pressure of pn2.5-4.0 MPa and working temperature of 0 ~ 450 ℃ and the system pipeline required to be isolated from the atmosphere in petroleum and chemical industry. Water Seal Stop Valve applicable medium is water, oil, steam and non corrosive gas.

Description

Structural features


1. Exquisite material selection, in line with relevant standards at home and abroad, with comprehensive materials and high quality.


2. The matching of sealing pairs is advanced and reasonable, which improves the sealing performance and long service life.


3. Water Seal Stop Valve is designed and manufactured according to the national standard GB / t12235, with novel structure and beautiful appearance. The connecting end has two modes: flange and welding, which can be matched according to different requirements of users.


4. The stuffing box is designed as a water sealing structure and connected with 0.6 ~ 1.6 PA water filler. It has small friction and good sealing, which can isolate the system from the atmosphere and ensure good air tightness. Water Seal Stop Valve is an environmental protection product.


5. After quenching and tempering and surface nitriding treatment, the valve rod has good corrosion resistance, scratch resistance and wear resistance.


6. Water Seal Stop Valve Compact structure, flexible operation and convenient maintenance.


7. The inverted seal is made of stainless steel threaded connection seal or austenitic stainless steel body surfacing, and the seal is reliable. The packing replacement can be carried out without shutdown, which is convenient and fast without affecting the system operation.




Water Seal Stop Valve




Main dimensions and weight


DN(mm)
(mm)
(kg)
L
D1
D2
H
D0
DS/J61H-25(40)
10
130
10
28
272
120
5
15
130
15
41
272
120
6
20
150
20
44
280
120
6
25
160
25
52
332
160
8
32
190
32
64
342
160
10
40
200
40
75
395
200
16
50
230
50
75
431
240
23
65
290
65
103
457
280
32
80
310
80
116
505
320
43
100
350
100
140
549
360
58
125
400
125
171
621
400
94
150
480
150
198
705
400
119
200
600
200
254
828
400
165


 

Main dimensions and weight


DN(mm)
(mm)
(kg)
L
D
D1
D2
b
Z-φd
H
D0
DS/J41H-25
10
130
90
60
40
16
4-14
272
120
6
15
130
95
65
45
16
4-14
272
120
6
20
150
105
75
55
16
4-14
280
120
6
25
160
115
85
65
16
4-14
332
160
10
32
190
135
100
78
18
4-18
342
160
11
40
200
145
110
85
18
4-18
395
200
17
50
230
160
125
100
20
4-18
431
240
24
65
290
180
145
120
22
8-18
457
280
33
80
310
195
160
135
22
8-18
505
320
47
100
350
230
190
160
24
8-23
549
360
62
125
400
270
220
188
28
8-25
621
400
96
150
480
300
250
218
30
8-25
703
400
128
200
600
360
310
278
34
12-25
828
400
168



DN(mm)
(mm)
(kg)
L
D
D1
D2
b
Z-φd
D6
f
H
D0
DS/J41H-40
10
130
90
60
40
16
4-14
35
4
272
120
6
15
130
95
65
45
16
4-14
40
4
272
120
7
20
150
105
75
55
16
4-14
51
4
280
120
8
25
160
115
85
65
16
4-14
58
4
332
160
10
32
190
135
100
78
18
4-18
66
4
342
160
11
40
200
145
110
85
18
4-18
76
4
395
200
17
50
230
160
125
100
20
4-18
88
4
437
246
25
65
290
180
145
120
22
8-18
110
4
457
280
34
80
310
195
160
135
22
8-18
121
4
505
320
47
100
350
230
190
160
24
8-23
150
4.5
549
360
62
125
400
270
220
188
28
8-25
176
4.5
621
400
96
150
480
300
250
218
30
8-25
204
4.5
705
400
128
200
600
360
310
278
34
12-25






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