... acc.to DIN3202Flange acc.to DIN2501Body and wedge of DI, CS etc.Stem of SS.Rubber seated gate valve is designed and ... .This will avoid the case of bad sealing,leakage or corrosion.This kind of valve has the outstanding merits of flexible on-off,reliable ... to throttle or control the medium flux in the pipeline of water,sewage,construction,petroleum,chemical,foodstuff,pharmacy,textile industry,electric ...