Ball Valve main parameter:

valve body valve rod valve ball seal side washer filling working temperature suitable material
WCB 1Cr13 1Cr13 1Cr13 Expanded graphite Expanded graphite -29-425 water,steam,oil
WC6 15CrMo 15CrMo    -29-425
WC9 25Cr2MoV 25Cr2MoV  stellite stainless steel Expanded graphite   intertwine   graphite
LCB 304 304    -46-354
CF8 304 304 body material 08soft steel  -196-600 acid or alkali
CF3 304L 304L    
CF8M 316 316  F304 F316  
CF3M 316L 316L