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一、美標截止閥 主要用途
法蘭連接的截止閥適用于公稱壓力PN1．6～16MPa，工作溫度-29～550℃的石油、化工、制藥、化肥、電力行業等各種工況的管路上，切斷或接通管路介質。驅動方式有手動、齒輪傳動、電動、氣動等。
二、美標截止閥 標準
|
計與制造 |
結構長度 |
法蘭尺寸 |
對焊連接尺寸 |
壓力-溫度 |
試驗-檢驗 |
|
ANSI B16.34 BS1873 |
ANSI B16.10 |
ANSI B16.5 |
ANSI B16.25 |
ANSI B16.34 |
API 598 |
三、美標截止閥 壓力試驗
|
公稱壓力PN(Lb) |
強度試驗 |
水密封試驗 |
氣密封試驗 |
|||
|
MPa |
Lbf/in2 |
MPa |
Lbf/in2 |
MPa |
Lbf/in2 |
|
|
150 |
3.0 |
430 |
2.2 |
315 |
0.4-0.7 |
60-100 |
|
300 |
7.7 |
1110 |
5.7 |
815 |
||
|
600 |
15.3 |
2220 |
11.3 |
1630 |
||
|
900 |
23.0 |
3330 |
17.0 |
2445 |
||
|
1500 |
38.4 |
5560 |
28.2 |
4080 |
||
|
2500 |
64.0 |
9255 |
47.0 |
6790 |
||
四、美標截止閥 主要零件材料及性能
|
體蓋 |
閥桿 |
密封面 |
墊片（環） |
填料 |
工作溫度 |
適用介質 |
|
WCB |
2Cr13 |
13Cr STL 木體材料尼龍 |
增強柔性石墨 13Cr/柔性石墨 SFB-2 08軟鋼 F304 F316 F304L F316L |
柔性石墨 增強柔性石墨 |
≤425 |
水 蒸汽 油品 |
|
WC1 |
38CrMoAl 25Cr2MoV |
≤425 |
||||
|
WC6 |
≤540 |
|||||
|
WC9 |
≤570 |
|||||
|
C5 C12 |
≤540 |
|||||
|
CF8 |
F304 |
≤200 |
硝酸 醋酸尿素 |
|||
|
CF8M |
F316 |
|||||
|
CF3 |
F304L |
|||||
|
CF3M |
F316L |
五、美標截止閥 主要尺寸和重量
|
DN |
150Lb 凸面法蘭（RF) 主要尺寸（mm） |
重量 |
||||||||
|
mm |
in |
L |
D |
D1 |
D2 |
b |
n-φd |
H |
D0 |
|
|
15 |
1/2 |
108 |
89 |
60.5 |
35 |
11.2 |
4-16 |
241 |
100 |
6.9 |
|
20 |
3/4 |
117 |
98 |
69.9 |
43 |
12.7 |
4-16 |
241 |
100 |
9.8 |
|
25 |
1 |
127 |
108 |
79.2 |
51 |
14.2 |
4-16 |
242 |
125 |
13.5 |
|
32 |
11/4 |
140 |
117 |
89 |
63 |
16 |
4-16 |
280 |
160 |
19.5 |
|
40 |
11/2 |
165 |
127 |
98.6 |
73 |
17.5 |
4-16 |
286 |
160 |
28.5 |
|
50 |
2 |
203 |
152 |
120.7 |
92 |
19 |
4-19 |
368 |
200 |
18 |
|
65 |
21/2 |
216 |
178 |
139.7 |
105 |
22.4 |
4-19 |
387 |
200 |
30 |
|
80 |
3 |
241 |
190 |
152.4 |
127 |
24 |
4-19 |
411 |
250 |
41 |
|
100 |
4 |
292 |
229 |
190.5 |
157 |
24 |
4-19 |
454 |
250 |
64 |
|
125 |
5 |
356 |
254 |
216.0 |
186 |
24 |
8-22.5 |
455 |
350 |
86 |
|
150 |
6 |
406 |
279 |
241.3 |
216 |
25.4 |
8-22.5 |
541 |
350 |
113 |
|
200 |
8 |
495 |
343 |
298.5 |
270 |
28.4 |
8-22.5 |
651 |
450 |
178 |
|
250 |
10 |
622 |
406 |
362.0 |
324 |
30.2 |
12-25.4 |
800 |
450 |
270 |
|
300 |
12 |
698 |
483 |
431.8 |
381 |
32 |
12-25.4 |
1231 |
600 |
350 |
|
350 |
14 |
787 |
533 |
476.3 |
413 |
35 |
12-29 |
1450 |
600 |
460 |
|
400 |
16 |
914 |
597 |
539.8 |
470 |
36.6 |
26-29 |
1645 |
600 |
590 |
|
DN |
300Lb 凸面法蘭（RF)主要尺寸（mm） |
重量 |
||||||||
|
15 |
1/2 |
152 |
95 |
66.5 |
35 |
14.2 |
4-16 |
241 |
140 |
7.7 |
|
20 |
3/4 |
178 |
117 |
82.5 |
43 |
16 |
4-19 |
241 |
140 |
11.3 |
|
25 |
1 |
203 |
123 |
89 |
51 |
17.5 |
4-19 |
283 |
160 |
16.8 |
|
32 |
11/4 |
216 |
133 |
98.5 |
63 |
19 |
4-19 |
320 |
200 |
21.2 |
|
40 |
11/2 |
229 |
155 |
114.3 |
73 |
20.6 |
4-22.5 |
322 |
200 |
32.6 |
|
50 |
2 |
267 |
165 |
127 |
92 |
22.4 |
8-19 |
399 |
200 |
25 |
|
65 |
21/2 |
292 |
190 |
149.4 |
105 |
25.4 |
8-22.5 |
438 |
250 |
30 |
|
80 |
3 |
318 |
210 |
168.1 |
127 |
28.4 |
8-22.5 |
464 |
280 |
35 |
|
100 |
4 |
356 |
254 |
200.2 |
157 |
31.8 |
8-22.5 |
565 |
350 |
56 |
|
125 |
5 |
400 |
279 |
235 |
186 |
35 |
8-22.5 |
614 |
350 |
96 |
|
150 |
6 |
444 |
318 |
269.7 |
216 |
36.6 |
12-25.4 |
717 |
400 |
120 |
|
200 |
8 |
559 |
381 |
330.2 |
270 |
41.2 |
12-25.4 |
930 |
500 |
212 |
|
250 |
10 |
622 |
444 |
387.4 |
324 |
47.8 |
16-28.5 |
1012 |
550 |
330 |
|
300 |
12 |
711 |
521 |
450.8 |
381 |
50.8 |
16-32 |
1231 |
600 |
472 |
|
350 |
14 |
762 |
584 |
514.4 |
413 |
54 |
20-32 |
1450 |
600 |
715 |
|
400 |
16 |
864 |
648 |
571.5 |
470 |
57.2 |
20-35 |
1645 |
600 |
920 |
|
DN |
600Lb 凸面法蘭（RF） 主要尺（mm） |
重量 |
||||||||
|
mm |
in |
L |
D |
D1 |
D2 |
b |
n-φd |
H |
D0 |
|
|
15 |
1/2 |
165 |
95 |
66.5 |
35 |
14.5 |
4-16 |
285 |
100 |
7.8 |
|
20 |
3/4 |
190 |
117 |
82.5 |
43 |
16 |
4-19 |
285 |
125 |
12.5 |
|
25 |
1 |
216 |
124 |
89 |
51 |
17.5 |
4-19 |
313 |
160 |
17.5 |
|
32 |
11/4 |
229 |
133 |
98.5 |
63 |
21 |
4-19 |
328 |
160 |
23.5 |
|
40 |
11/2 |
241 |
156 |
114.3 |
73 |
22.5 |
4-22.5 |
365 |
180 |
38.5 |
|
50 |
2 |
292 |
165 |
127 |
92 |
33 |
8-19 |
444 |
200 |
35 |
|
65 |
21/2 |
330 |
190 |
149.4 |
105 |
36 |
8-22.5 |
483 |
250 |
50 |
|
80 |
3 |
356 |
210 |
168.1 |
127 |
39 |
8-22.5 |
533 |
250 |
60 |
|
100 |
4 |
432 |
273 |
216 |
157 |
45 |
8-25.4 |
622 |
350 |
110 |
|
125 |
5 |
508 |
330 |
266.7 |
186 |
52 |
8-28.5 |
750 |
350 |
200 |
|
150 |
6 |
559 |
356 |
292.1 |
216 |
55 |
12-28.5 |
800 |
450 |
230 |
|
200 |
8 |
660 |
419 |
349.3 |
270 |
63 |
12-32 |
927 |
500 |
410 |
|
250 |
10 |
787 |
508 |
431.8 |
324 |
71 |
16-35 |
1257 |
600 |
625 |
|
300 |
12 |
838 |
559 |
489 |
381 |
74 |
20-35 |
1468 |
680 |
860 |
