低温截止（节流）阀
详细介绍
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
|
国标低温截止阀(节流)阀 PNl.6MPa一4.0MPa 规格主要尺寸：
|
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
|
|
◆主要零件材料
|
零件名称
|
阀体、阀盖
|
阀杆、阀瓣
|
填料
|
支架
|
|
材料
|
A352-LCB、
A352-LC3、 A351-CF8 |
A182-F304
|
聚四氟乙烯
|
A216-WCB
|
◆主要性能规范
|
型号
|
公称压力
PN(MPa) |
常温试验压力 P2(MPa)
|
低温密封试验压力
(MPa) |
工作温度及适用介质
|
||||
|
壳体
|
密封 (气)
|
上密封
|
||||||
|
DJ41Y-150(Lb)
|
150
|
3.0
|
0.6
|
2.2
|
0.6
|
-40℃氨、液
氮、丙烷 |
-101℃乙烯、
二氧化碳 |
-196℃甲烷、
液化天然气 |
|
DJ41Y-600(Lb)
|
600
|
15.0
|
0.6
|
11.0
|
0.6
|
|||
◆主要外形尺寸和连接尺寸
|
公称压力
PN(MPa) |
公称通径NPS
|
尺寸(mm)
|
||||||||||
|
ln
|
mm
|
L
|
D
|
D1
|
D2
|
b
|
z-d
|
D0
|
H
|
|||
|
-46℃
|
-101℃
|
-196℃
|
||||||||||
|
DJ40Y-150Lb
|
||||||||||||
|
150
|
2
|
50
|
203
|
152
|
120.5
|
92
|
16
|
4-19
|
224
|
110
|
130
|
170
|
|
3
|
80
|
241
|
190
|
152.5
|
127
|
19
|
4-19
|
250
|
120
|
150
|
190
|
|
|
4
|
100
|
292
|
229
|
190.5
|
157
|
24
|
8-19
|
350
|
130
|
160
|
200
|
|
|
5
|
125
|
356
|
254
|
216
|
186
|
24
|
8-22
|
350
|
130
|
160
|
200
|
|
|
6
|
150
|
405
|
279
|
241.5
|
216
|
26
|
8-22
|
355
|
140
|
170
|
220
|
|
|
8
|
200
|
495
|
343
|
298.6
|
270
|
29
|
8-22
|
400
|
140
|
170
|
220
|
|
|
DJ40Y-600Lb
|
||||||||||||
|
600
|
2 ,
|
50
|
292
|
,
165
|
127
|
92
|
26
|
8-19
|
250
|
110
|
130
|
170
|
|
3
|
80
|
356
|
210
|
168
|
127
|
32
|
8-22
|
400
|
120
|
150
|
190
|
|
|
4
|
100
|
432
|
273
|
216
|
157
|
38
|
8-25
|
400
|
130
|
160
|
200
|
|
|
5
|
125
|
508
|
330
|
266.5
|
186
|
45
|
8-29
|
400
|
130
|
160
|
200
|
|
|
6
|
150
|
559
|
356
|
292
|
216
|
48
|
12-29
|
560
|
140
|
170
|
220
|
|
|
8
|
200
|
660
|
419
|
349
|
270
|
56
|
12-32
|
630
|
140
|
170
|
220
|
|
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