... InspectionMSS SP81,MSS SP61,API598,ISO5208Type Of OperationGear,Electric,Pneumatic,Manual-Air-HydraulicDN(NPS)2"~24"PN(LB)Class 150LB91.0Mpa ... CF3,CF3M,CF8,CF8M,CN7M,CF8C,317LSpecial Alloy CE aproved ceramic lined valve Apply to such as ash, mud slag, coal ... as heavy medium piping system for coal preparation plantPneumatic ceramic knife gate valve features:1, seal by structural ceramics, can prevent ...