H42H立式止回阀严格按 API6D、GB/T12235 标准设计制造，本系列阀门正常处于关闭状态，由于管线中进口端介质的压力作用，而克服弹簧阻力使阀门开启。当进口端介质压力低于出口端时，弹簧将阀芯推向阀座而使阀门关闭，阻止介质逆流，故起止回作用。采用弹簧支撑阀芯，故采用立式安装或卧式装均可。本产品广泛应用于石油、化工、制药、电力行业等各种工况的管路上。【红德阀门 值得信赖】
H42H立式止回阀连接尺寸：
|
型号 |
公称通径 DN |
尺寸(mm) |
||||||
|
L |
D |
D1 |
D2 |
H |
b |
Z-Φd |
||
|
H42H/W-16) |
15 |
130 |
95 |
65 |
45 |
77 |
14 |
4-14 |
|
20 |
150 |
105 |
75 |
55 |
77 |
14 |
4-14 |
|
|
25 |
160 |
115 |
85 |
65 |
80 |
16 |
4-14 |
|
|
32 |
180 |
135 |
100 |
78 |
85 |
16 |
4-18 |
|
|
40 |
200 |
145 |
110 |
85 |
95 |
16 |
4-18 |
|
|
50 |
230 |
160 |
125 |
100 |
105 |
16 |
4-18 |
|
|
65 |
290 |
180 |
145 |
120 |
120 |
18 |
4-18 |
|
|
80 |
310 |
195 |
160 |
135 |
130 |
20 |
8-18 |
|
|
100 |
350 |
215 |
180 |
155 |
140 |
20 |
8-18 |
|
|
125 |
400 |
245 |
210 |
185 |
155 |
22 |
8-18 |
|
|
150 |
480 |
280 |
240 |
210 |
180 |
24 |
8-23 |
|
|
200 |
600 |
335 |
295 |
265 |
215 |
26 |
12-23 |
|
|
H42H/W-25 |
15 |
130 |
95 |
65 |
45 |
77 |
16 |
4-14 |
|
20 |
150 |
105 |
75 |
55 |
80 |
16 |
4-14 |
|
|
25 |
160 |
115 |
85 |
65 |
85 |
16 |
4-14 |
|
|
32 |
180 |
135 |
100 |
78 |
95 |
18 |
8-18 |
|
|
40 |
200 |
145 |
110 |
85 |
105 |
18 |
8-18 |
|
|
50 |
230 |
160 |
125 |
100 |
120 |
20 |
8-18 |
|
|
65 |
290 |
180 |
145 |
120 |
130 |
212 |
8-18 |
|
|
80 |
310 |
195 |
160 |
135 |
140 |
22 |
8-18 |
|
|
100 |
350 |
230 |
190 |
160 |
155 |
24 |
8-23 |
|
|
125 |
400 |
270 |
220 |
188 |
180 |
28 |
8-25 |
|
|
150 |
480 |
300 |
250 |
218 |
215 |
30 |
8-25 |
|
|
200 |
600 |
360 |
310 |
278 |
973 |
34 |
12-25 |
|