Poly Fuyuan WGL gravity-free valve filter factory direct unpowered mechanical filters ..

ZW-type gravity-free valve filter, main gravity-free valve filter with no large valves, positive head was filtered, washed automation, low cost and ease of operation management, etc., which have been in rail or water in small and medium towns wide range of applications. But there are gravity-free valve filter following question: complex water systems, construction demanding; water process gas is easy to clip, affecting the normal filtration and backwash; a single-layer quartz sand filter, filter water production is low, can not water supply to meet the increasing demands.