... -DN200 3,Materials:ceramic 4,Certificates:ISO9001 Ceramic water level control valve Standards: 1,Material: lining ceramic/ body carbon steel + stainless steel2 ... 6D, BS 67557,Structure Type: Short Pattern,Regular Pattern,Venturi Pattern,Full Bore Pattern8,Operated way: Handwheel, Gear, Pneumatic, Electric Actuator.Advantages:1 ...