H44W-16P-DN25,H44W-16P-DN32,H44W-25P-DN200,H44W-40P-DN50,不锈钢旋启式止回阀
H44W-16P-DN40,H44W-16P-DN50,H44W-16P-DN65,H44W-16P-DN80,H44W-16P-DN100,H44W-16P-DN125,H44W-16P-DN150,H44W-16P-DN200,H44W-16P-DN250,无锡昌林，H44W-16P-DN300,H44W-16P-DN350,H44W-16P-DN400,H44W-16P-DN450,H44W-16P-DN500,H44W-16P-DN600,H44W-25P-DN250,H44W-25P-DN300,H44W-25P-DN350,H44W-25P-DN400,H44W-25P-DN500,H44W-40P-DN65,H44W-40P-DN80,H44W-40P-DN100,H44W-40P-DN125,H44W-40P-DN150,H44W-40P-DN200
产品结构特点：
1、结构长度短，其结构长度只有传统法兰止回阀的1/4~1/8
2、体积小、重量轻、其重量只有传统法兰止回阀的1/4~1/20
3、阀瓣关闭快速，水锤压力小
4、水平或垂直管道均可使用，安装方便
5、流道通畅、流体阻力小
6、动作灵敏、密封性能好
7、阀瓣行程短、关阀冲击力小
8、整体结构、简单紧凑、造型美观
9、使用寿命长、可靠性高
产品主要零件材料：
H44W-16P不锈钢旋启式止回阀主要零件材料
| 零件名称 |
材 料 |
| 阀体、阀盖 |
碳素铸钢 |
不锈钢 |
| 阀瓣 |
碳素铸钢＋硬制合金碳 |
不锈钢＋硬制合金 |
| 摇杆 |
素铸 |
不锈钢 |
H44W-16P不锈钢旋起式止回阀主要外形及结构尺寸
| 公称压力PN（MPa） |
公称通径DN（mm） |
尺寸 （mm） |
重量（kg） |
| L |
D |
D1 |
| 1.6MPa |
25 |
160 |
115 |
85 |
- |
| 32 |
180 |
140 |
100 |
- |
| 40 |
200 |
150 |
110 |
15.2 |
| 50 |
230 |
165 |
125 |
21.3 |
| 65 |
290 |
185 |
145 |
28.1 |
| 80 |
310 |
200 |
160 |
37.6 |
| 100 |
350 |
220 |
180 |
56.7 |
| 125 |
400 |
250 |
210 |
91 |
| 150 |
480 |
285 |
240 |
129 |
| 200 |
495 |
340 |
295 |
210 |
| 250 |
622 |
405 |
355 |
290 |
| 300 |
698 |
460 |
410 |
320 |
| 350 |
787 |
520 |
470 |
350 |
| 400 |
914 |
580 |
525 |
400 |
| 450 |
978 |
640 |
585 |
550 |
| 500 |
978 |
715 |
650 |
850 |
| 600 |
1295 |
840 |
770 |
1300 |
| 2.5MPa |
200 |
533 |
360 |
310 |
210 |
| 250 |
622 |
425 |
370 |
294 |
| 300 |
711 |
485 |
430 |
367 |
| 350 |
838 |
555 |
490 |
410 |
| 400 |
864 |
620 |
550 |
461 |
| 500 |
1016 |
730 |
660 |
870 |
| 4.0MPa |
50 |
230 |
165 |
125 |
27 |
| 65 |
290 |
185 |
145 |
37 |
| 80 |
310 |
200 |
160 |
57 |
| 100 |
350 |
235 |
190 |
89 |
| 125 |
400 |
270 |
220 |
135 |
| 150 |
480 |
300 |
250 |
184 |
| 200 |
530 |
375 |
320 |
266 |
