Anti-surge water combination underground air valve – Mod. WAVE SUBWAY 3S-CSF

The WAVE SUBWAY underground air valve 3S-CSF has been designed to provide the proper solution for those locations requiring cost saving, frost protection, installation under roads, pavements, buildings. The air valve will ensure the operation of the pipeline networks allowing the release of air pockets during working conditions, the entrance of large volumes of air during draining operations and the controlled air discharge to avoid water hammer events.

• WAVE SUBWAY is designed to provide an alternative solution to conventional air valves installations avoiding chambers, structures, pits and sectioning devices between the air valve and the pipeline.
• Built in check valve for integral shut-off system when removing the air valve for maintenance purposes.
• Stand pipe in stainless steel for the maximum resistance against corrosion and to support the upper maneuvering system.
• Flanged basement to house the check valve and the drain port needed to avoid the accumulation of water inside the standpipe.
• Surge prevention combination air valve WAVE 3S-CSF automatically operated by the flow medium, and moving through the upper maneuvering system into a guidance bush with two O-rings for water tightness.
• Maintenance can be carried out from the top extracting the air valve from the standpipe.