HQ41X Working principle of ball check valve
When the medium flows in the specified direction, the spherical valve disc will be opened due to the medium force; when the medium flows counter current, the spherical valve disc will close automatically and quickly depending on the medium itself, so as to prevent the medium from flowing counter current.
HQ41X Main technical parameters of ball check valve
Nominal diameter | DN50~DN250 |
Maximum working pressure | PN16 |
Applicable temperature | 0℃~80℃ |
Liquid medium | water |
Connection standard | GB/T 17241.6-2008、EN1092 |
Test standard | GB/T 13927-2008、API598 |
HQ41X Material of main parts of ball check valve
Part name | texture of material |
valve body | Epoxy coating on ductile iron surface |
Valve cover | Epoxy coating on ductile iron surface |
Spherical disc | EPDM coated with cast aluminum or cast iron |
HQ41X Drawing of ball check valve
Main connection dimensions
DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 |
L | 180 | 200 | 260 | 300 | 350 | 400 | 500 | 600 |
H | 185 | 210 | 245 | 280 | 335 | 400 | 495 | 600 |
D | 165 | 185 | 200 | 220 | 250 | 285 | 340 | 405 |
n-Φd | 4-19 | 4-19 | 8-19 | 8-19 | 8-19 | 8-23 | 12-23 | 12-28 |
Material of main parts of ball check valve
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