The MAGNUM series was one kind to blend convex lose stalk control  , the diaphragm type drives many road valves that component and piston type seal completely principle.This special combination, cause to circumscribe tube path although for 1-1/2 ″s, can also reach to of the 20 ms 3/hour water quantity result.The valve body inner part has automatic close valve door export function, so need not to increase electromagnetism valve or diaphragm valve to keep reborn procedure period from having waste water flying to use a point.Can match with diameter biggest soften a bottle for the 900 mms;The standard installs the method as crest pack type, but can also increase to deal with contact a component but change to a side pack type.