详细介绍
低温截止阀
产品概述：
低温截止阀适用于低温液体贮运设备的管理系统,具有开关灵活、密封可靠的特点,也可用于其他低温和深冷介质的管理系统.
执行标准：
|
设计与制造
|
结构长度
|
浩兰尺寸
|
压力-温度
|
试验-检验
|
|
JB/T7749
|
GB12221
|
JB79
|
GB9131
|
JB/T9092
|
压力试验：
|
公称压力PN
|
1.6
|
2.5
|
4.0
|
|
强度试验
|
2.4
|
3.8
|
6.0
|
|
水密封试验
|
1.8
|
2.8
|
4.4
|
|
上密封试验
|
1.8
|
2.8
|
4.4
|
|
气密封试验
|
0.4-0.7
|
||
主要零件材料及性能：
|
体盖板
|
阀杆
|
密封面
|
垫片
|
埴料
|
工作温度℃
|
适用介质
|
|
LCB
|
1Cr17Ni12
|
DTL/DTL
|
1Cr13/柔性石墨低温石棉
|
PTFE
浸四氟乙 烯石棉绳 柔性石墨 |
-46
|
丙烷/丙烯
甲醇,乙烷 煤气/液氨 |
|
LC1
|
-60
|
|||||
|
LC2
|
-73
|
|||||
|
LC3
|
1Cr18Ni9Ti
|
-101
|
||||
|
LC4
|
-115
|
|||||
|
LC8
|
-196
|
主要外形连接尺寸：
|
1.6MPa
|
DN
|
L
|
D
|
D1
|
D2
|
b
|
n-Φd
|
H
|
D0
|
||
|
-46℃
|
4-101℃
|
-196℃
|
|||||||||
|
凸面法兰
RF DJ41Y-16L DJ41Y-16L C1 DJ41Y-16L C2 DJ41Y-16L C3 DJ41Y-16L C4 DJ41Y-16P DJ41Y-16R |
50
|
230
|
160
|
125
|
100
|
16
|
4-Φ18
|
460
|
480
|
520
|
240
|
|
65
|
290
|
180
|
145
|
120
|
18
|
4-Φ18
|
475
|
505
|
525
|
280
|
|
|
80
|
310
|
195
|
160
|
135
|
20
|
8-Φ18
|
520
|
550
|
590
|
280
|
|
|
100
|
350
|
215
|
180
|
155
|
20
|
8-Φ18
|
545
|
575
|
615
|
320
|
|
|
125
|
400
|
245
|
210
|
185
|
22
|
8-Φ18
|
590
|
620
|
660
|
360
|
|
|
150
|
480
|
280
|
240
|
210
|
24
|
8-Φ23
|
650
|
680
|
730
|
400
|
|
|
200
|
600
|
335
|
295
|
265
|
26
|
12-Φ23
|
850
|
880
|
930
|
400
|
|
|
250
|
730
|
405
|
355
|
320
|
30
|
12-Φ25
|
956
|
986
|
1036
|
450
|
|
|
300
|
850
|
460
|
410
|
375
|
30
|
12-Φ25
|
1095
|
1125
|
1175
|
500
|
|
|
2.5MPa
|
50
|
230
|
160
|
125
|
100
|
20
|
4-Φ18
|
460
|
460
|
520
|
240
|
|
凸面法兰
RF DJ41Y-25L DJ41Y-25L C1 DJ41Y-25L C2 DJ41Y-25L C3 DJ41Y-25L C4 DJ41Y-25P DJ41Y-25R |
65
|
290
|
180
|
145
|
120
|
22
|
8-Φ18
|
475
|
505
|
525
|
280
|
|
80
|
310
|
195
|
160
|
135
|
22
|
8-Φ18
|
520
|
550
|
590
|
280
|
|
|
100
|
350
|
230
|
190
|
160
|
24
|
8-Φ23
|
545
|
575
|
615
|
320
|
|
|
125
|
400
|
270
|
220
|
188
|
28
|
8-Φ25
|
590
|
620
|
660
|
360
|
|
|
150
|
480
|
300
|
250
|
218
|
30
|
8-Φ25
|
650
|
680
|
730
|
400
|
|
|
200
|
600
|
360
|
310
|
278
|
34
|
12-Φ25
|
850
|
880
|
930
|
400
|
|
|
250
|
730
|
425
|
370
|
332
|
36
|
12-Φ30
|
956
|
986
|
1036
|
450
|
|
|
300
|
850
|
485
|
430
|
390
|
40
|
16-Φ30
|
1095
|
1125
|
1175
|
500
|
|
|
4.0MPa
|
50
|
230
|
160
|
125
|
100
|
20
|
4-Φ18
|
483
|
504
|
546
|
240
|
|
凸面法兰
RF DJ41Y-40L DJ41Y-40L C1 DJ41Y-40L C2 DJ41Y-40L C3 DJ41Y-40L C4 DJ41Y-40P DJ41Y-40R |
65
|
290
|
180
|
145
|
120
|
22
|
8-Φ18
|
499
|
530
|
551
|
280
|
|
80
|
310
|
195
|
160
|
135
|
22
|
8-Φ18
|
546
|
578
|
620
|
280
|
|
|
100
|
350
|
230
|
190
|
160
|
24
|
8-Φ23
|
572
|
604
|
646
|
320
|
|
|
125
|
400
|
270
|
220
|
188
|
28
|
8-Φ25
|
620
|
651
|
693
|
360
|
|
|
150
|
480
|
330
|
2850
|
218
|
30
|
8-Φ25
|
683
|
741
|
767
|
400
|
|
|
200
|
600
|
375
|
320
|
282
|
38
|
12-Φ30
|
893
|
924
|
977
|
400
|
|
|
250
|
730
|
445
|
385
|
345
|
42
|
12-Φ34
|
1004
|
1035
|
1088
|
450
|
|
|
300
|
850
|
510
|
450
|
408
|
46
|
16-Φ34
|
1150
|
1181
|
1234
|
500
|
|
