H41Y-25I-DN50,H41Y-25I-DN65,H41Y-25I-DN80,H41Y-25I-DN100,H41Y-25I-DN125,H41Y-25I-DN150,H41Y-25I-DN200,H41Y-40I-DN15,H41Y-40I-DN20,H41Y-40I-DN25,
H41Y-40I-DN32,H41Y-40I-DN40,H41Y-40I-DN50,H41Y-40I-DN65,H41Y-40I-DN80,H41Y-40I-DN100,H41Y-40I-DN125,H41Y-40I-DN150,H41Y-40I-DN200,H41Y-64I-DN15,
H41Y-64I-DN20,H41Y-64I-DN25,H41Y-64I-DN32,H41Y-64I-DN40,H41Y-64I-DN50,H41Y-64I-DN65,H41Y-64I-DN80,H41Y-64I-DN100,H41Y-64I-DN125,H41Y-64I-DN150,
H41Y-64I-DN200,H41Y-100I-DN15,H41Y-100I-DN20,H41Y-100I-DN25,H41Y-100I-DN32,H41Y-100I-DN40,H41Y-100I-DN50,H41Y-100I-DN65,H41Y-100I-DN80,H41Y-100I-DN100,
H41Y-100I-DN125,H41Y-100I-DN150,H41Y-100I-DN200,H41Y-25P-DN15,H41Y-25P-DN20,H41Y-25P-DN25,H41Y-25P-DN32,H41Y-25P-DN40,H41Y-25P-DN50,H41Y-25P-DN65,
H41Y-25P-DN80,H41Y-25P-DN100,H41Y-25P-DN125,H41Y-25P-DN150,H41Y-25P-DN200,H41Y-40P-DN15,H41Y-40P-DN20,H41Y-40P-DN25,H41Y-40P-DN32,H41Y-40P-DN40,
H41Y-40P-DN50,H41Y-40P-DN65,H41Y-40P-DN80,H41Y-40P-DN100,H41Y-40P-DN125,H41Y-40P-DN150,H41Y-40P-DN200,H41Y-64P-DN15,H41Y-64P-DN20,H41Y-64P-DN25,
H41Y-64P-DN32,H41Y-64P-DN40,H41Y-64P-DN50,H41Y-64P-DN65,H41Y-64P-DN80,H41Y-64P-DN100,H41Y-64P-DN125,H41Y-64P-DN150,H41Y-64P-DN200,H41Y-100P-DN15,
H41Y-100P-DN20,H41Y-100P-DN25,H41Y-100P-DN32,H41Y-100P-DN40,H41Y-100P-DN50,H41Y-100P-DN65,H41Y-100P-DN80,H41Y-100P-DN100,H41Y-100P-DN125,
H41Y-100P-DN150,H41Y-100P-DN200,
止回阀：止回阀又称单向阀或逆止阀，其作用是防止管路中的介质倒流。水泵吸水关的底阀也属于止回阀类。
启闭件靠介质流动和力量自行开启或关闭，以防止介质倒流的阀门叫止回阀。止回阀属于自动阀类，主要用于介质单向流动的管道上，只允许介质向一个方向流动，以防止发生事故。
止回阀按结构划分，可分为升降式止回阀、旋启式止回阀和蝶式止回阀三种。升降式止回阀可分为立式和卧式两种。旋启式止回阀分为单瓣式、双瓣式和多瓣式三种。蝶式止回阀为直通式、以上几种止回阀在连接形式上可分为螺纹连接、法兰连接和焊接三种。
|
型号 |
公称压力PN(Mpa) |
试验压力Ps(Mpa) |
适用温度(oc) |
适用介质 |
||
|
密度 |
气密封 |
壳体 |
||||
|
H41Y-25I |
2.5 |
2.75 |
0.6 |
3.75 |
≤550 |
蒸汽、水、油品等 |
|
H41Y-40I |
4.0 |
4.4 |
0.6 |
6.0 |
||
|
H41Y-64I |
6.4 |
7.04 |
0.6 |
9.6 |
||
|
H41Y-100I |
10.0 |
11.0 |
0.6 |
15.0 |
||
|
H41Y-25P |
2.5 |
2.75 |
0.6 |
3.75 |
≤150 |
弱腐蚀性介质 |
|
H41Y-40P |
4.0 |
4.4 |
0.6 |
6.0 |
||
|
H41Y-64P |
6.4 |
7.04 |
0.6 |
9.6 |
||
|
H41Y-100P |
10.0 |
11.0 |
0.6 |
15.0 |
||
主要零件材料
|
零件 |
阀门、阀盖、阀瓣 |
阀体、阀瓣密封面 |
垫片 |
螺栓 |
|
|
材料 |
I |
铬钼钢 |
硬质合金 |
钢带石棉缠绕式垫片 |
铬钼钒钢 |
|
P |
铬钼钛不锈钢 |
硬质合金 |
聚四氟乙烯 |
不锈钢 |
|
主要尺寸及重量
|
公称通径DN（mm） |
尺寸(mm) |
重量(kg) |
||||||||
|
L |
D |
D1 |
D2 |
·b |
f |
Z –φd |
H |
D3 |
||
|
15 |
130 |
95 |
65 |
45 |
16 |
2 |
4-φ14 |
100 |
- |
5 |
|
20 |
150 |
105 |
75 |
55 |
16 |
2 |
4 –φ14 |
105 |
- |
7 |
|
25 |
160 |
115 |
85 |
65 |
16 |
2 |
4 –φ14 |
115 |
110 |
9 |
|
32 |
190 |
135 |
100 |
78 |
18 |
2 |
4 –φ18 |
120 |
120 |
10 |
|
40 |
200 |
145 |
110 |
85 |
18 |
3 |
4-φ18 |
140 |
135 |
15 |
|
50 |
230 |
160 |
125 |
100 |
20 |
3 |
4-φ18 |
150 |
150 |
20 |
|
65 |
290 |
180 |
145 |
120 |
22 |
3 |
8-φ18 |
160 |
175 |
25 |
|
80 |
310 |
195 |
160 |
135 |
22 |
3 |
8-φ18 |
175 |
200 |
32 |
|
100 |
350 |
230 |
190 |
160 |
24 |
3 |
8-φ23 |
200 |
230 |
57 |
|
125 |
400 |
270 |
220 |
188 |
28 |
3 |
8-φ25 |
230 |
273 |
- |
|
150 |
480 |
300 |
250 |
218 |
30 |
3 |
8-φ25 |
265 |
330 |
- |
|
200 |
600 |
360 |
310 |
278 |
34 |
3 |
12-φ25 |
300 |
365 |
- |
