HQ44X-16Q vertical ball check valve consists of valve body, ball and flapper. It adopts rubber-coated ball as valve flap, which can roll up and down, left and right on the integral slide in the valve body under the action of medium, so as to open or close the valve. With anechoic closure, does not produce water hammer, good sealing performance, less head loss, can be installed horizontally or vertically and so on. Widely used in cold water, hot water, industrial and domestic water pipeline system to prevent backflow of media pump outlet.
Product Parameters
Product Model | HQ44X-16Q |
Valve body material | Ductile Iron |
Nominal pressure | ≤1.6Mpa |
Applicable medium | Water and so on |
Applicable temperature | ≤80°C |
Product Size Reference

Nominal Diameter | L | D | Z-Фd |
DN50 | / | 125 | 4-18 |
DN65 | 165 | 145 | 4-18 |
DN80 | 186 | 160 | 8-18 |
DN100 | 216 | 180 | 8-18 |
DN150 | 270 | 240 | 8-22 |
DN200 | / | 295 | 12-22 |














