 |
Non-sound and speediness-closing check valve |
| It was designed with streamlining inner., and can be turned off in the shortest time. |
| |
| Feature |
¡¤new and reasonable design
¡¤Avoid impact of water hammer , soundless
¡¤easy to install and maintain |
| |
| Material of parts |
Name |
Material |
Body |
grey iron£¬ ductile iron£¬ cast iron |
Seat
stem |
bronze£¬ chrome-stainless steel |
Sring |
Stainless steel |
|
| |
| Performance |
Code |
DZH 4C 7-10 |
DZH 4C 7-16 |
DZH 4C 7-25 |
Nominal Diameter£¨mm £© |
DN50 ¡« D500 |
Nominal Pressure£¨MPa) |
1.0 |
1.6 |
2.5 |
Sealing testing pressure(MPa) |
1.1 |
1.76 |
2.75 |
Shell testing pressure(MPa) |
1.5 |
2.4 |
3.75 |
Medium |
Water ¡¢ Sewage water¡¢Oil ¡¢ weak acid and alkali and so on |
|
| |
| Outer Size Unit:mm |
Nominal Diamete
(mm ) |
mm |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
in |
2 ¡å |
2.5 ¡å |
3 ¡å |
4 ¡å |
5 ¡å |
6 ¡å |
8 ¡å |
10 ¡å |
12 ¡å |
14¡å |
16 ¡å |
18 ¡å |
20 ¡å |
Size |
L |
120 |
150 |
180 |
240 |
300 |
350 |
450 |
500 |
550 |
575 |
600 |
650 |
700 |
|
|
| Note: the mounting dimension of flanges are designed in accordance with GB/T9113-2000, GB/T17241-1998,JB/T79-1994. |
| |
|
| |
