夾套保溫止回閥主要用于石油、化工、冶金、制藥等各類系統(tǒng)中，以輸送常德下會凝固的高粘度介質(zhì)。該系列閥門的夾套焊裝于閥門的兩法蘭之間，閥門的側(cè)面、底部設置有夾套的連接口。由于增加了夾套，此種閥門的連接法蘭尺寸要比同一規(guī)格普通球閥的連接法蘭大一到兩個規(guī)格，但結(jié)構長度與同規(guī)格的閥門相同，夾套中可自由地流過蒸汽或其它熱的保溫介質(zhì)，確保粘稠介質(zhì)可順暢地流過閥門。
要外形尺寸
|
GB 1.6MPa
|
||||||||||||||
|
DN
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
|
L
|
130
|
150
|
160
|
180
|
200
|
230
|
290
|
310
|
350
|
400
|
480
|
600
|
650
|
750
|
|
H
|
90
|
95
|
100
|
105
|
110
|
115
|
140
|
170
|
200
|
230
|
255
|
285
|
290
|
300
|
|
Wt
|
14
|
15
|
16
|
17
|
18
|
19
|
24
|
29
|
40
|
58
|
83
|
100
|
105
|
110
|
|
GB 2.5MPa
|
||||||||||||||
|
DN
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
|
L
|
130
|
150
|
160
|
180
|
200
|
230
|
290
|
310
|
350
|
400
|
480
|
600
|
650
|
750
|
|
H
|
90
|
95
|
100
|
105
|
110
|
115
|
140
|
170
|
200
|
230
|
260
|
285
|
290
|
300
|
|
Wt
|
14
|
15
|
16
|
17
|
18
|
19
|
24
|
29
|
40
|
72
|
104
|
145
|
180
|
230
|
|
GB 4.0MPa
|
||||||||||||||
|
DN
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
|||
|
L
|
180
|
200
|
230
|
290
|
310
|
350
|
400
|
480
|
600
|
650
|
750
|
|||
|
H
|
120
|
140
|
150
|
160
|
175
|
200
|
225
|
260
|
315
|
320
|
300
|
|||
|
Wt
|
9
|
12
|
15
|
20
|
33
|
41
|
73
|
104
|
147
|
180
|
230
|
|||
|
GB 6.4MPa
|
||||||||||||||
|
DN
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
|||
|
L
|
230
|
260
|
300
|
340
|
380
|
430
|
500
|
550
|
600
|
775
|
900
|
|||
|
H
|
160
|
170
|
170
|
190
|
205
|
230
|
265
|
310
|
350
|
480
|
520
|
|||
|
Wt
|
12
|
20
|
29
|
35
|
47
|
68
|
100
|
142
|
195
|
250
|
300
|
|||
|
GB10.0MPa
|
||||||||||||||
|
DN
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
|
L
|
130
|
150
|
160
|
180
|
200
|
230
|
290
|
310
|
350
|
400
|
480
|
600
|
650
|
750
|
|
H
|
90
|
95
|
100
|
105
|
110
|
115
|
140
|
170
|
200
|
230
|
255
|
285
|
290
|
300
|
|
Wt
|
14
|
15
|
16
|
17
|
18
|
19
|
24
|
29
|
40
|
58
|
83
|
100
|
105
|
110
|
|
GB 16.0MPa
|
||||||||||||||
|
DN
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
|
L
|
130
|
150
|
160
|
180
|
200
|
230
|
290
|
310
|
350
|
400
|
480
|
600
|
650
|
750
|
|
H
|
90
|
95
|
100
|
105
|
110
|
115
|
140
|
170
|
200
|
230
|
260
|
290
|
290
|
300
|
|
Wt
|
14
|
15
|
16
|
17
|
18
|
19
|
24
|
29
|
40
|
72
|
104
|
180
|
180
|
230
|