01.Use diaphragm to separate body cavity from bonnet cavity& drive components, isolating the part above diaphragm from medium, can flow in both directions and no flow direction requirements
02.Flow path is simple, resistance is low, rated flow coefficient is bigger than the single seated or sleeve valve with the same nominal diameter
03.Valve body generally lined with natural rubber, can also be customized, such as butyl rubber/ viton/polyethylene/polypropylene/PTFE/enamel and so on, applicable for corrosive medium
04.Simple structure,stable and reliable performance,good sealing performance,leakage can be Ⅵ
05.The lining layer is tested by electric spark, test and inspection accord with BS6755 Standard