European Gate Valves has fitted double flap valves to a vacuum separator on a municipal incinerator restoring it to 'better than new'.
Double flap valves have successfully replaced rotary valves on a vacuum separator. The initial installation included a set of rotary valves which after approximately three weeks became inoperable due to leakage past the rotary valve. Designed for the removal of environmental spillage from the waste processing areas, the vacuum equipment was required to pick-up ash and lime, together with various other powders and fines.
Even after extended operation, the European Gate Valves double flap valve has demonstrated lower leakage rates than even newly installed rotary valves. Double flap valves provide a combination of performance, strength and durability, where conditions of abrasion, vacuum/pressure and temperatures up to 1000°C can be accommodated either singly or collectively.
The European Gate Valves double flap valve successfully eliminates the continuous expensive process of maintenance/replacement/repair because sealing is achieved through the mating of two flat ground surfaces.
Following the success of European Gate Valves double flap valve, it has now been specified at other Municipal Incinerator sites to replace rotary valves.