Wastewater water transmission lines, Pump stations for sewage, wastewater & water treatment plants.
50mm-80mm (2" - 3")
The D-26 SB combines the reliable and efficient properties of the D-26 combination wastewater air valve with the added feature of a sub-surface valve that can be buried below ground.
Air valve disconnection and maintenance from ground level is possible due to a specifically designed gear box operated horizontal sliding disc valve situated at the base of the D-26 SB assembly.
Gear Box Operated Shut-off Valve
Enables the disconnection and removal of the D-060 air valve from its subsurface housing, even when the system is under pressure.
All Maintenance is conducted above surface, removing safety considerations for confined spaces.
Unless the shut-off valve is in the “closed” position and the internal pressure is released, a safety mechanism stops the accidental extraction of the air valve.