RIDGISTORMControl penstocks, gate valves and flap valves

RIDGISTORMControl chambers with penstocks, gate valves or flap valves are used in drainage and sewer systems to facilitate maintenance, control the system flow and protect the system from surcharging. Gate valves are used to permit or prevent the flow of water and can isolate drainage sections. The valves open by lifting a wedge out of the path of the flow of water. Flap valves are non-return