一、J41W法兰截止阀结构特点：
国标截止阀(节流阀)的启闭件是圆柱形的阀瓣，密封面呈平面或锥面，阀瓣沿流体的中心线作直线运动。国标截止阀只适用于全开和全关，一般不用来调节流量，定做时允许作调节和节流。
二、J41W法兰截止阀设计规范：设计与制造
| 结构长度
| 法兰尺寸
| 压力-温度
| 试验-检验
|
|
|
GB12221
| GB9131
|
| 3.8
| 9.6
| 24.0
|
|
水密封试验1.8
| 4.4
| 11.0
|
| 2.8
| 7.04
| 18.0
|
气密封试验0.4-0.7
|
|
|
|
|
|
|
三、J41W法兰截止阀主要零件材料及性能：
体盖扳
| 阀杆
| 密封面
| 垫片(环)
| 填料
| 工作温度℃
| 适用介质
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2Cr13
| 尼龙 1Crl3／柔性石墨
0Cr18Ni9Ti OCr18Ni12Mo2Ti
| 柔性石墨
SFB-260 SFP-260
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
38CrMoAI 25Cr2MoV
| WC6
| WC9
| ZGCr5Mo
| ZG1Cr18Ni9Ti
| ≤200
| 硝酸类ZGCr18Ni12Mo2Ti
| ≤200
| 醋酸类 RF
J41H J41Y
J41W J41F
J41N
16C 16P
16R 16I
| 130
| 60
| 14
| 198
| 15
| 95
| 45
| 4-Φ14
| 120
|
150
| 75
| 14
| 258
| 25
| 115
| 65
| 4-Φ14
| 140
|
|
|
|
|
|
|
|
|
|
180
| 100
| 16
| 280
| 40
| 145
| 85
| 4-Φ18
| 180
|
|
|
|
|
|
|
|
|
|
230
| 125
| 16
| 350
| 65
| 180
| 120
| 4-Φ18
| 280
|
|
|
|
|
|
|
|
|
|
310
| 160
| 20
| 400
| 100
| 215
| 155
| 8-Φ18
| 320
|
|
|
|
|
|
|
|
|
|
400
| 210
| 22
| 460
| 150
| 280
| 210
| 8-Φ23
| 450
|
|
|
|
|
|
|
|
|
|
600
| 295
| 26
| 710
| 250
| 405
| 320
| 12-Φ25
| 550
|
|
|
|
|
|
|
|
|
|
|
|
750
| 410
| 30
| 925
| RF
J41H J41Y
J41W J41F
J41N 25C
25P 25R 25I
| 130
| 60
| 16
| 198
| 15
| 95
| 45
| 4-Φ14
| 120
|
|
|
|
|
|
|
150
| 75
| 16
| 258
| 25
| 115
| 65
| 4-Φ14
| 140
|
|
|
|
|
|
|
|
|
|
|
|
180
| 100
| 18
| 280
| 40
| 145
| 85
| 4-Φ18
| 180
|
|
|
|
|
|
|
|
|
|
|
|
230
| 125
| 20
| 350
| 65
| 180
| 125
| 8-Φ18
| 280
|
|
|
|
|
|
|
|
|
|
|
|
310
| 160
| 22
| 355
| 100
| 230
| 160
| 8-Φ23
| 320
|
|
|
|
|
|
|
|
|
|
|
|
400
| 220
| 28
| 460
| 150
| 300
| 218
| 8-Φ25
| 450
|
|
|
|
|
|
|
|
|
|
|
|
600
| 310
| 34
| 710
| 250
| 425
| 332
| 12-Φ30
| 550
|
|
|
|
|
|
|
|
|
|
|
|
698
| 430
| 40
| 925
| 600 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
压力等级：PN40
公称通径
DN
| 尺寸
|
L
| D
| D1
| D2
|
| b-f
| Z×Фd
| H
| Do
|
15
| 130
| 95
| 65
| 45
| 40
| 16-2
| 4×Ф14
| 233
| 120
|
20
| 150
| 105
| 75
| 56
| 51
| 16-3
| 4×Ф14
| 275
| 140
|
25
| 160
| 115
| 85
| 65
| 58
| 16-3
| 4×Ф14
| 285
| 160
|
32
| 180
| 140
| 100
| 76
| 66
| 18-3
| 4×Ф18
| 302
| 160
|
40
| 200
| 150
| 110
| 84
| 76
| 18-3
| 4×Ф18
| 355
| 200
|
50
| 230
| 165
| 125
| 99
| 88
| 20-3
| 4×Ф18
| 373
| 240
|
65
| 290
| 185
| 145
| 118
| 110
| 22-3
| 8×Ф18
| 408
| 280
|
80
| 310
| 200
| 160
| 132
| 121
| 24-3
| 8×Ф18
| 436
| 320
|
100
| 350
| 235
| 190
| 156
| 150
| 24-3
| 8×Ф22
| 475
| 360
|
125
| 400
| 270
| 220
| 184
| 176
| 26-3
| 8×Ф26
| 558
| 400
|
150
| 480
| 300
| 250
| 211
| 204
| 28-3
| 8×Ф26
| 720
| 400
|
200
| 600
| 375
| 320
| 282
| 260
| 38-3
| 12×Ф30
| 800
| 450
|
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