HH47, H47XF, and HDH47X butterfly buffer check valves are mainly used at the outlet of water pumps in industrial water supply and sewage treatment plants to prevent media back flow in the pipeline network. Automatically eliminate destructive water hammer to ensure that water pumps and pipelines are not damaged. The valve mainly consists of a valve body, a valve disc, a buffer device, and a micro regulating valve. The micro resistance spherical check valve has a novel structure, small volume, low fluid resistance, smooth operation, reliable sealing, wear resistance, and good buffering performance, making it an excellent product for industrial water use and urban sewage discharge.
Main component materials of HH47, H47XF, HDH47X butterfly buffer check valves
Parts name |
Valve body |
Disc |
Sealing ring |
Valve stem |
Filler |
|
Material |
Gray cast iron,carbon steel |
Gray cast iron, cast steel, ductile iron |
Nitrile oil resistant rubber, chloroprene rubber |
Stainless steel |
PTFE |
Main technical parameters of HH47, H47XF,HDH47X butterfly buffer check valves
Model |
Nominal pressure
PN(MPa) |
Test pressure Ps(MPa) |
Working pressure
P(MPa) |
Medium temperature
(≧) |
Applicable medium |
|
Shell |
Seal |
|
H47X、H47H、H47X、
H47H、H47Xf、HD47X |
1.0 |
1.5 |
1.1 |
1.0 |
0-80≧ |
Water, oil, seawater, sewage |
|
1.6 |
2.4 |
1.75 |
1.6 |
|
2.5 |
3.75 |
2.75 |
2.5 |
Main external dimensions of HH47, H47XF,HDH47X butterfly buffer check valves
Nominal diameter
DN(mm) |
Size(mm) |
|
L |
H |
B1 |
B2 |
|
200 |
230 |
550 |
540 |
600 |
|
250 |
250 |
630 |
600 |
700 |
|
300 |
270 |
690 |
650 |
740 |
|
350 |
290 |
780 |
710 |
800 |
|
400 |
310 |
860 |
770 |
870 |
|
450 |
330 |
910 |
830 |
920 |
|
500 |
350 |
980 |
900 |
1000 |
|
Nominal diameter
DN(mm) |
Size (mm) |
|
L |
H |
B1 |
B2 |
|
600 |
390 |
1070 |
1090 |
1250 |
|
700 |
430 |
1220 |
1200 |
1360 |
|
800 |
470 |
1320 |
1320 |
1480 |
|
900 |
510 |
1430 |
1420 |
1580 |
|
1000 |
550 |
1550 |
1550 |
1700 |
|
1200 |
630 |
1800 |
1780 |
1950 |
|
1400 |
710 |
1980 |
2000 |
2175 | |
