... -resistant Control Valve, resist the corrosion of all chemistries.flow control valve,pneumatic control valve 100R Series is our latest ... oil,petrochemical ,chemical,power plants,metallurgy and so on. chemistries.flow control valve,pneumatic control valve,control valveStandard SpecificationsSeries :100RBody size ... 20~+180oCLeakage:ANSI CLASS V. 100R Corrosion-Resistant Control Valve / flow control valve