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该阀采用美国国家标准 (ANSl)及美国石油学会标准(APl)的连接、结构尺寸，内件采用国际(GB)尺寸。其原理当手轮旋转时，通过阀杆带动柱塞在导向套中上、下往复运动，使柱塞端部斜锥面与阀座锥面完成阀门的开启与关闭功能。
二、美标柱塞截止阀用途
广泛用于电力、水力、供热、化工、化肥、炼油、冶金、造纸、医药、酿酒、建筑等行业。
三、美标柱塞截止阀尺寸
|
DN(mm)/ |
UJ41H(Y)-150Lb U41SM-150Lb |
|||||||||||||||
|
1/2″ |
3/4″ |
1″ |
11/4″ |
11/2″ |
2″ |
21/2″ |
3″ |
4″ |
5″ |
6″ |
8″ |
10″ |
12″ |
14″ |
16″ |
|
|
L |
108 |
117 |
127 |
140 |
165 |
203 |
216 |
241 |
292 |
356 |
406 |
495 |
622 |
698 |
787 |
914 |
|
H |
170 |
190 |
210 |
250 |
270 |
300 |
340 |
380 |
420 |
450 |
540 |
640 |
740 |
850 |
970 |
1100 |
|
DO |
100 |
100 |
120 |
140 |
160 |
180 |
200 |
240 |
270 |
310 |
340 |
400 |
520 |
640 |
760 |
900 |
|
D |
89 |
98 |
108 |
117 |
127 |
152 |
178 |
190 |
229 |
254 |
279 |
343 |
406 |
483 |
533 |
597 |
|
D1 |
60.5 |
70 |
79.5 |
89 |
98.5 |
120.5 |
139.5 |
152.5 |
190.5 |
216 |
241.5 |
298.5 |
362 |
432 |
476 |
540 |
|
g |
35 |
43 |
51 |
64 |
73 |
92 |
105 |
127 |
157 |
186 |
216 |
270 |
324 |
381 |
413 |
470 |
|
b |
10 |
111 |
12 |
13 |
15 |
16 |
18 |
19 |
24 |
24 |
26 |
29 |
31 |
32 |
35 |
37 |
|
Z-φd |
4-15 |
4-15 |
4-15 |
4-15 |
4-15 |
4-19 |
4-19 |
4-19 |
8-19 |
8-22 |
8-22 |
8-22 |
12-25 |
12-25 |
12-29 |
16-29 |
|
DN(mm)/ |
UJ41H(Y)-300Lb U41SM-300Lb |
|||||||||||||||
|
1/2″ |
3/4″ |
1″ |
11/4″ |
11/2″ |
2″ |
21/2″ |
3″ |
4″ |
5″ |
6″ |
8″ |
10″ |
12″ |
14″ |
16″ |
|
|
L |
152 |
178 |
203 |
216 |
229 |
267 |
292 |
318 |
356 |
400 |
444 |
559 |
622 |
711 |
838 |
864 |
|
H |
170 |
190 |
210 |
250 |
270 |
300 |
340 |
380 |
420 |
460 |
540 |
640 |
740 |
850 |
980 |
1100 |
|
DO |
100 |
100 |
120 |
140 |
160 |
180 |
200 |
240 |
280 |
310 |
340 |
400 |
520 |
640 |
760 |
900 |
|
D |
95 |
117 |
124 |
133 |
156 |
165 |
190 |
210 |
254 |
279 |
318 |
381 |
445 |
521 |
584 |
648 |
|
D1 |
66.5 |
82.5 |
89 |
98.5 |
114.5 |
127 |
149 |
168.5 |
200 |
235 |
270 |
330 |
387.5 |
451 |
514.5 |
571.5 |
|
g |
35 |
43 |
51 |
64 |
73 |
92 |
105 |
127 |
157 |
186 |
216 |
270 |
324 |
381 |
413 |
470 |
|
b |
15 |
16 |
18 |
19 |
21 |
23 |
26 |
29 |
32 |
35 |
37 |
42 |
48 |
51 |
54 |
58 |
|
Z-φd |
4-15 |
4-19 |
4-19 |
4-19 |
4-22 |
8-19 |
8-22 |
8-22 |
8-22 |
8-22 |
12-22 |
12-25 |
16-29 |
16-32 |
20-32 |
20-35 |
