... ,MSS SP61,API598,ISO5208Type Of OperationGear,Electric,Pneumatic,Manual-Air-HydraulicDN(NPS)2"~32"PN(LB)Class 150LB91.0Mpa~ ... CF8,CF8M,CN7M,CF8C,317LSpecial Alloy CE aproved 150lb ceramic knife gate valve Apply to such as ash, mud slag, coal slurry, ... heavy medium piping system for coal preparation plantPneumatic 150lb ceramic knife gate valve features:1, seal by structural ceramics, can prevent solid ...