MARU supplied various sizes of Gate Valves and Hydraulic Dampening Check Valve from DN80 to DN450 for the applications in Sewage Treatment Plant Sludge Faciltiies and Biogas productions. BS EN standards applied for both Gate Valves and Check Valves all with Gunmetal as Valve seat garantee an absolute zero leakage on Bench Hydraulic Test to BS EN 12266-1:2003 achieving Rate A zero leakage standard .Check valves are incorporated with hydraulic damper connected to the hinge pin of the check valve.

To extend the scope of services for wase water treatment plant surface scum handling, MARU developed its fully stainless steel Telescope Valve with level adjustable to regulate the level of water level and scum level in containment structures such as clarifier, sedimentation tanks, sludge holding chambers, tanks, ponds Landfill lagoons. Also known as “Sludge Draw-off Valves” or “Decanting Valves”, the valve assembly consists of a lifting mechanism (operator), connecting Stainless steel stem