J41H直流式高压截止阀产品概述：
J41H直流式高压截止阀属于强制密封式阀门，所以在阀门关闭时，必须向阀瓣施加压力，以强制密封面不泄漏。当介质由阀瓣下方进入阀内时，操作力所需要克服的阻力，是阀杆和填料的磨擦力与由介质的压力所产生的推力，关阀门的力比开阀门的力大，所以阀杆的直径要大，否则会发生阀杆顶弯的故障。
J41H直流式高压截止阀的启闭件是塞形的阀瓣，密封面呈平面或锥面，阀瓣沿流体的中心线作直线运动。阀杆的运动形式，有升降杆式（阀杆升降，手轮不升降），也有升降旋转杆式（手轮与阀杆一起旋转升降，螺母设在阀体上）。截止阀只适用于全开和全关，不允许作调节和节流。
J41H直流式高压截止阀尺寸规格和重量：
|
6.4MPa
|
20
|
190
|
125
|
90
|
51
|
20
|
4-18
|
228
|
160
|
13
|
凹凸法兰
MFM
J41H
J41Y
J41W
J41F
J41N
64
64P
64R
64I
|
|
25
|
210
|
135
|
100
|
58
|
22
|
4-18
|
275
|
180
|
15
|
|
32
|
230
|
150
|
110
|
66
|
24
|
4-23
|
325
|
200
|
19
|
|
40
|
260
|
165
|
125
|
76
|
24
|
4-23
|
360
|
240
|
25
|
|
50
|
300
|
175
|
135
|
88
|
26
|
4-23
|
410
|
280
|
35
|
|
65
|
340
|
200
|
160
|
110
|
28
|
8-23
|
450
|
320
|
48
|
|
80
|
380
|
210
|
170
|
121
|
30
|
8-23
|
485
|
360
|
56
|
|
100
|
430
|
250
|
200
|
150
|
32
|
8-25
|
537
|
400
|
125
|
|
125
|
500
|
295
|
240
|
176
|
36
|
8-30
|
631
|
400
|
130
|
|
150
|
550
|
340
|
280
|
204
|
38
|
8-34
|
646
|
450
|
160
|
|
200
|
650
|
405
|
345
|
260
|
44
|
12-34
|
813
|
500
|
285
|
|
10.0MPa
|
10
|
170
|
100
|
70
|
35
|
20
|
4-14
|
198
|
120
|
6
|
凹凸法兰
MFM
J41H
J41Y
J41W
100
100P
100R
100I
|
15
|
170
|
105
|
75
|
40
|
20
|
4-14
|
202
|
140
|
11
|
|
20
|
190
|
125
|
90
|
51
|
22
|
4-18
|
228
|
160
|
13
|
|
25
|
210
|
135
|
100
|
58
|
24
|
4-18
|
250
|
180
|
14
|
|
32
|
230
|
150
|
110
|
66
|
24
|
4-23
|
326
|
220
|
16
|
|
40
|
260
|
165
|
125
|
76
|
26
|
4-23
|
359
|
240
|
30
|
|
50
|
300
|
195
|
145
|
88
|
28
|
4-25
|
414
|
280
|
50
|
|
65
|
340
|
220
|
170
|
110
|
32
|
8-25
|
434
|
320
|
65
|
|
80
|
380
|
230
|
180
|
121
|
34
|
8-25
|
547
|
400
|
100
|
|
100
|
430
|
265
|
210
|
150
|
38
|
8-30
|
621
|
400
|
116
|
|
125
|
500
|
310
|
250
|
176
|
42
|
8-34
|
732
|
450
|
150
|
|
150
|
550
|
350
|
290
|
204
|
46
|
12-34
|
840
|
500
|
300
|
|
200
|
650
|
430
|
360
|
260
|
54
|
12-41
|
925
|
550
|
600
|
|
16.0MPa
|
15
|
170
|
110
|
75
|
40
|
24
|
4-18
|
148
|
140
|
12
|
环槽法兰
RTJ
J41H
J41Y
J41W
160
160P
160R
160I
|
20
|
190
|
130
|
90
|
51
|
26
|
4-23
|
156
|
160
|
15
|
|
25
|
210
|
140
|
100
|
58
|
28
|
4-23
|
175
|
180
|
17
|
|
32
|
230
|
165
|
115
|
66
|
30
|
4-25
|
200
|
200
|
21
|
|
40
|
260
|
175
|
125
|
76
|
32
|
4-27
|
231
|
240
|
31
|
|
50
|
300
|
215
|
165
|
88
|
36
|
8-25
|
262
|
250
|
53
|
|
65
|
340
|
245
|
190
|
110
|
44
|
8-30
|
303
|
320
|
70
|
|
80
|
380
|
260
|
205
|
121
|
46
|
8-30
|
341
|
400
|
100
|
|
100
|
430
|
300
|
240
|
150
|
48
|
8-34
|
485
|
450
|
120
|
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