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旋启式止回阀 |
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| 图片相关说明: |
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止回阀是能自动阻止流体倒流的阀门。止回阀的阀瓣在流体压力作用下开启,流体从进口侧流向出口侧。当进口侧压力低于出口侧时,阀瓣在流体压差、本身重力等因素作用下自动关闭以防止流体倒流。 | 连接尺寸
| 压力尺寸 |
通径DN(mm) |
| 15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
350 |
400 |
500 |
| 16P(R) |
L |
130 |
150 |
160 |
180 |
200 |
230 |
290 |
310 |
350 |
400 |
480 |
600 |
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| D |
95 |
105 |
115 |
135 |
145 |
160 |
180 |
195 |
230 |
270 |
300 |
360 |
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| D1 |
65 |
75 |
85 |
100 |
110 |
125 |
145 |
160 |
190 |
220 |
250 |
310 |
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| D2 |
45 |
55 |
65 |
78 |
85 |
100 |
120 |
135 |
160 |
188 |
218 |
278 |
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|
| Z-Φd |
4-Φ14 |
4-Φ14 |
4-Φ14 |
4-Φ18 |
4-Φ18 |
4-Φ18 |
8-Φ18 |
8-Φ18 |
8-Φ23 |
8-Φ25 |
8-Φ25 |
12-Φ30 |
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| 25P(R) |
L |
130 |
150 |
160 |
180 |
200 |
230 |
290 |
310 |
350 |
400 |
480 |
600 |
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| D |
95 |
105 |
115 |
135 |
145 |
160 |
180 |
195 |
230 |
270 |
300 |
360 |
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|
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| D1 |
65 |
75 |
85 |
100 |
110 |
125 |
145 |
160 |
190 |
220 |
250 |
310 |
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| D2 |
45 |
55 |
65 |
78 |
85 |
100 |
120 |
135 |
160 |
188 |
218 |
278 |
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| Z-Φd |
4-14 |
4-14 |
4-14 |
4-18 |
4-18 |
4-18 |
8-18 |
8-18 |
8-23 |
8-25 |
8-25 |
12-25 |
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| 40P(R) |
L |
130 |
150 |
160 |
180 |
200 |
230 |
290 |
310 |
350 |
400 |
480 |
600 |
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| D |
95 |
105 |
115 |
135 |
145 |
160 |
180 |
195 |
230 |
270 |
300 |
375 |
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| D1 |
65 |
75 |
85 |
100 |
110 |
125 |
145 |
160 |
190 |
220 |
250 |
320 |
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| D2 |
45 |
55 |
65 |
78 |
85 |
100 |
120 |
135 |
160 |
188 |
218 |
282 |
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| D6 |
40 |
51 |
58 |
66 |
76 |
88 |
110 |
121 |
150 |
176 |
204 |
260 |
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| Z-Φd |
4-14 |
4-14 |
4-14 |
4-18 |
4-18 |
4-18 |
8-18 |
8-18 |
8-23 |
8-25 |
8-25 |
12-30 |
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| 64P(R) |
L |
170 |
190 |
210 |
230 |
260 |
300 |
340 |
380 |
430 |
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| D |
105 |
125 |
135 |
150 |
165 |
175 |
200 |
210 |
250 |
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| D1 |
75 |
90 |
100 |
110 |
125 |
135 |
160 |
170 |
200 |
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| D2 |
55 |
68 |
78 |
82 |
95 |
105 |
130 |
140 |
168 |
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| D6 |
40 |
51 |
58 |
66 |
76 |
88 |
110 |
121 |
150 |
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| Z-Φd |
4-14 |
4-18 |
4-18 |
4-23 |
4-23 |
4-23 |
8-23 |
8-23 |
8-25 |
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| 100P(R) |
L |
170 |
190 |
210 |
230 |
260 |
300 |
340 |
380 |
430 |
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| D |
105 |
125 |
135 |
150 |
165 |
195 |
220 |
230 |
265 |
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| D1 |
75 |
90 |
100 |
110 |
125 |
145 |
170 |
180 |
210 |
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| D2 |
55 |
68 |
78 |
82 |
95 |
112 |
138 |
148 |
172 |
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| D6 |
40 |
51 |
58 |
66 |
76 |
88 |
110 |
121 |
150 |
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| Z-Φd |
4-14 |
4-18 |
4-18 |
4-23 |
4-23 |
4-25 |
8-25 |
8-25 |
8-30 |
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