HDPE Double overflow gate type DPOS - H max.
Valve to regulate the upstream water level between a minimum level (H-min) and a maximum level (H-max) with the upper door and the additional option to lift the lower door to "flush" the channel.
Liftable H-max means that the lower can be lifted till the position H max, so same height as upper door.
On-seating pressure in meters water column equal to the height of the door dh.
Off-seating pressure not possible.
if a rectangular sluice gate is required with a dimension in between a hundredfold in mm, the outside dimensions of the gate with the first following hundredfold in mm will be followed.
The free overflow height (OH) between door and HDPE cover of the spindle is 190 mm.
HDPE Double overflow gate type DPOS - H min.
Liftable H-min means that the lower can be lifted till the position H min, so same height as upper door.
If the Db>2000 mm and Dh>750 mm an overflow gate with 2 spindles might be applied.