直流式柱塞阀概述:
主要直流式柱塞阀最大的优点是介质在内流动平衡转弯拐角少。直通式流线为梯形角式流线为角形而直流式流线为波浪形,根据对三种截止阀,流阻系数的测定DN100mm,直通式截止阀流阻系数为4.1 ,DN100mm角式截止阀流阻系数为3.8,而DN100mm直流式截止阀流阻系数为0.5,阻力大大降低。
直流式柱塞阀连接、结构尺寸:
DN(mm)
尺寸(mm)
|
U45SM-16C、P、R U45H-16C、P、R
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
350
|
400
|
L
|
130
|
150
|
160
|
180
|
200
|
230
|
290
|
310
|
350
|
400
|
480
|
600
|
622
|
698
|
787
|
914
|
H
|
180
|
200
|
220
|
260
|
280
|
310
|
350
|
390
|
430
|
460
|
550
|
650
|
750
|
860
|
980
|
1110
|
W
|
100
|
100
|
120
|
140
|
160
|
180
|
200
|
240
|
270
|
310
|
340
|
400
|
520
|
640
|
760
|
900
|
D
|
95
|
105
|
115
|
135
|
145
|
160
|
180
|
195
|
215
|
245
|
280
|
335
|
405
|
460
|
520
|
580
|
K
|
65
|
75
|
85
|
100
|
110
|
125
|
145
|
160
|
180
|
210
|
240
|
295
|
355
|
410
|
470
|
525
|
T
|
12
|
12
|
12
|
12
|
13
|
13
|
12
|
17
|
17
|
19
|
21
|
23
|
27
|
28
|
30
|
32
|
n-φ
|
4-14
|
4-14
|
4-14
|
4-18
|
4-18
|
4-18
|
4-18
|
8-18
|
8-18
|
8-18
|
8-23
|
12-23
|
12-25
|
12-25
|
16-25
|
16-30
|
DN(mm)
尺寸(mm)
|
U45SM-25C、P、R U45H-25C、P、R
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
350
|
400
|
L
|
130
|
150
|
160
|
180
|
200
|
230
|
290
|
310
|
350
|
400
|
480
|
600
|
622
|
698
|
787
|
914
|
H
|
180
|
200
|
220
|
260
|
280
|
310
|
350
|
390
|
430
|
470
|
550
|
650
|
750
|
860
|
990
|
1110
|
W
|
100
|
100
|
120
|
140
|
160
|
180
|
200
|
240
|
280
|
310
|
340
|
400
|
520
|
640
|
760
|
900
|
D
|
95
|
105
|
115
|
135
|
145
|
160
|
180
|
195
|
230
|
270
|
300
|
360
|
425
|
485
|
550
|
610
|
K
|
65
|
75
|
85
|
100
|
110
|
125
|
145
|
160
|
190
|
220
|
250
|
310
|
370
|
430
|
490
|
550
|
T
|
14
|
14
|
14
|
15
|
15
|
17
|
19
|
19
|
21
|
25
|
27
|
31
|
33
|
36
|
40
|
44
|
n-φ
|
4-14
|
4-14
|
4-14
|
4-18
|
4-18
|
4-18
|
4-18
|
8-18
|
8-23
|
8-25
|
8-25
|
12-25
|
12-30
|
16-30
|
16-34
|
16-34
|
|