The new valves from Singer Valve include the 6 in and 8 in S106 full port rolling diaphragm operated control valves and 20 in S106 full port and 24 in S206 reduced port diaphragm operated control valves.
 

Singer Valve has designed a vertical diaphragm which rolls while opening and closing enabling it to lock the valve in place without any friction. This provides pressure stability from the highest to the lowest flows. By reducing pressure, this valve technology reduces leakage. The rolling diaphragm also reacts faster to changing pressures than a flat diaphragm as it typically has much less water volume above the diaphragm enabling it to respond quicker.
 

Brad Clarke, VP of Sales & Marketing for Singer Valve, said: “Most water utilities now have a greater emphasis on smaller pressure zones (District Metered Areas, DMA) and the 6 in and 8 in are by far the most popular sizes for these DMA’s. The Rolling Diaphragm is proven to reduce water loss and leakage in changing flow systems, which is why these customers have been asking for this technology.”