止回閥又稱逆止閥、單向閥、逆流閥、和背壓閥。止回閥用于管路系統(tǒng),靠管路中介質(zhì)本身的流動(dòng)產(chǎn)生的力自動(dòng)開啟和關(guān)閉的,屬于一種自動(dòng)閥門,其主要作用是防止介質(zhì)倒流、防止泵及驅(qū)動(dòng)電動(dòng)機(jī)反轉(zhuǎn),以及容器介質(zhì)的泄放。止回閥還可用于給其中的壓力可能升至超過系統(tǒng)壓的輔助系統(tǒng)提供補(bǔ)給的管路上。止回閥主要可分為旋啟式止回閥(依重心旋轉(zhuǎn))與升降式止回閥(沿軸線移動(dòng))。
規(guī)格 主要尺寸
1.6MPa |
DN |
L |
D |
D1 |
D2 |
b |
n-φd |
H |
RF |
15 |
130 |
95 |
65 |
45 |
14 |
4-φ14 |
77 |
20 |
150 |
105 |
75 |
55 |
14 |
4-φ14 |
77 | |
25 |
160 |
115 |
85 |
65 |
14 |
4-φ14 |
80 | |
32 |
180 |
135 |
100 |
78 |
16 |
4-φ18 |
85 | |
40 |
200 |
145 |
110 |
85 |
16 |
4-φ18 |
95 | |
50 |
230 |
160 |
125 |
100 |
16 |
4-φ18 |
105 | |
65 |
290 |
180 |
145 |
120 |
18 |
4-φ18 |
120 | |
80 |
310 |
195 |
160 |
135 |
20 |
8-φ18 |
130 | |
100 |
350 |
215 |
180 |
155 |
20 |
8-φ18 |
140 | |
125 |
400 |
245 |
210 |
185 |
22 |
8-φ18 |
155 | |
150 |
480 |
280 |
240 |
210 |
24 |
8-φ23 |
180 | |
200 |
600 |
335 |
295 |
265 |
26 |
12-φ23 |
215 | |
250 |
730 |
405 |
355 |
320 |
30 |
12-φ25 |
260 | |
300 |
850 |
460 |
410 |
375 |
30 |
12-φ25 |
315 | |
400 |
1100 |
580 |
525 |
485 |
36 |
16-φ30 |
- | |
500 |
1250 |
705 |
650 |
608 |
44 |
20-φ34 |
- | |
2.5MPa |
15 |
130 |
95 |
65 |
45 |
16 |
4-φ14 |
100 |
RF |
20 |
150 |
105 |
75 |
55 |
16 |
4-φ14 |
105 |
25 |
160 |
115 |
85 |
65 |
16 |
4-φ14 |
120 | |
32 |
180 |
135 |
100 |
78 |
18 |
4-φ18 |
130 | |
40 |
200 |
145 |
110 |
85 |
18 |
4-φ18 |
135 | |
50 |
230 |
160 |
125 |
100 |
20 |
4-φ18 |
149 | |
65 |
290 |
180 |
145 |
120 |
22 |
8-φ18 |
160 | |
80 |
310 |
195 |
160 |
135 |
22 |
8-φ18 |
169 | |
100 |
350 |
230 |
190 |
160 |
24 |
8-φ23 |
194 | |
125 |
400 |
270 |
220 |
188 |
28 |
8-φ25 |
222 | |
150 |
480 |
300 |
250 |
218 |
30 |
8-φ25 |
255 | |
200 |
600 |
360 |
310 |
278 |
34 |
12-φ25 |
305 | |
250 |
730 |
425 |
370 |
332 |
36 |
12-φ30 |
355 | |
300 |
850 |
485 |
430 |
390 |
40 |
16-φ30 |
410 | |
400 |
1100 |
580 |
525 |
485 |
36 |
16-φ30 |
- | |
500 |
1250 |
705 |
650 |
608 |
44 |
20-φ34 |
- |
規(guī)格 主要尺寸
4.OMPa |
DN |
L |
D |
D1 |
D2 |
D6 |
b |
n-φd |
H |
凹凸法蘭 |
15 |
130 |
95 |
65 |
45 |
40 |
16 |
4-φ14 |
100 |
20 |
150 |
105 |
75 |
55 |
51 |
16 |
4-φ14 |
105 | |
25 |
160 |
115 |
85 |
65 |
58 |
16 |
4-φ14 |
120 | |
32 |
180 |
135 |
100 |
78 |
66 |
18 |
4-φ18 |
130 | |
40 |
200 |
145 |
110 |
85 |
76 |
18 |
4-φ18 |
135 | |
50 |
230 |
160 |
125 |
100 |
88 |
20 |
4-φ18 |
149 | |
65 |
290 |
180 |
145 |
120 |
110 |
22 |
8-φ18 |
164 | |
80 |
310 |
195 |
160 |
135 |
121 |
22 |
8-φ18 |
169 | |
100 |
350 |
230 |
190 |
160 |
150 |
24 |
8-φ23 |
194 | |
125 |
400 |
270 |
220 |
188 |
176 |
28 |
8-φ25 |
225 | |
150 |
480 |
300 |
250 |
218 |
204 |
30 |
8-φ25 |
255 | |
200 |
600 |
375 |
320 |
282 |
260 |
38 |
12-φ30 |
305 | |
250 |
730 |
445 |
385 |
345 |
313 |
42 |
12-φ34 |
360 | |
300 |
850 |
510 |
450 |
408 |
364 |
46 |
16-φ34 |
415 | |
350 |
980 |
570 |
510 |
465 |
422 |
52 |
16-φ41 |
- | |
400 |
1100 |
655 |
585 |
535 |
474 |
58 |
20-φ48 |
- | |
450 |
1200 |
680 |
61O |
560 |
524 |
60 |
20-φ41 |
- | |
500 |
1250 |
755 |
670 |
612 |
576 |
62 |
20-φ54 |
- | |
6.4MPa |
15 |
210 |
105 |
75 |
55 |
40 |
18 |
4-φ14 |
100 |
MFM |
20 |
230 |
125 |
90 |
68 |
51 |
20 |
4-φ18 |
110 |
25 |
230 |
135 |
100 |
78 |
58 |
22 |
4-φ18 |
125 | |
32 |
260 |
150 |
110 |
82 |
66 |
24 |
4-φ23 |
152 | |
40 |
260 |
165 |
125 |
95 |
76 |
24 |
4-φ23 |
168 | |
50 |
300 |
175 |
135 |
105 |
88 |
26 |
4-φ23 |
170 | |
65 |
340 |
200 |
160 |
130 |
110 |
28 |
8-φ23 |
188 | |
80 |
380 |
210 |
170 |
140 |
121 |
30 |
8-φ23 |
205 | |
100 |
430 |
250 |
200 |
168 |
150 |
32 |
8-φ25 |
230 | |
125 |
500 |
295 |
240 |
202 |
176 |
36 |
8-φ30 |
245 | |
150 |
550 |
340 |
280 |
240 |
204 |
38 |
8-φ34 |
265 | |
200 |
650 |
405 |
345 |
300 |
260 |
44 |
12-φ34 |
310 | |
250 |
775 |
470 |
400 |
352 |
313 |
48 |
12-φ41 |
445 | |
300 |
900 |
530 |
460 |
412 |
364 |
54 |
16-φ41 |
474 | |
350 |
1025 |
595 |
525 |
475 |
422 |
60 |
16-φ41 |
514 | |
400 |
1150 |
670 |
585 |
525 |
474 |
66 |
16-φ48 |
616 | |
10.0MPa |
15 |
210 |
105 |
75 |
55 |
40 |
20 |
4-φ14 |
100 |
MFM |
20 |
230 |
125 |
90 |
68 |
51 |
22 |
4-φ18 |
110 |
25 |
230 |
135 |
100 |
78 |
58 |
24 |
4-φ18 |
125 | |
32 |
260 |
150 |
110 |
82 |
66 |
24 |
4-φ23 |
140 | |
40 |
260 |
165 |
125 |
95 |
76 |
26 |
4-φ23 |
168 | |
50 |
300 |
195 |
145 |
112 |
88 |
28 |
4-φ25 |
170 | |
65 |
340 |
220 |
170 |
138 |
110 |
32 |
8-φ25 |
188 | |
80 |
380 |
230 |
180 |
148 |
121 |
34 |
8-φ25 |
205 | |
100 |
430 |
265 |
210 |
172 |
150 |
38 |
8-φ30 |
230 | |
125 |
500 |
310 |
250 |
210 |
176 |
42 |
8-φ34 |
245 | |
150 |
550 |
350 |
290 |
250 |
204 |
46 |
12-φ34 |
265 | |
200 |
650 |
430 |
360 |
312 |
260 |
54 |
12-1 |
402 | |
250 |
775 |
500 |
430 |
382 |
313 |
60 |
12-41 |
432 | |
300 |
900 |
585 |
500 |
442 |
364 |
70 |
16-48 |
484 | |
350 |
1025 |
655 |
560 |
498 |
422 |
76 |
16-54 |
- | |
400 |
1150 |
715 |
620 |
558 |
474 |
80 |
16-54 |
- |
網(wǎng)站維護(hù):傳信網(wǎng)絡(luò)
Copyright © 2021 樂清市麒泰電氣有限公司 版權(quán)所有 All Right Reserved. 浙ICP備2021001121號(hào)-1 XML 網(wǎng)站地圖