... , installation and maintenance.4. Minimized operating torque. Lever, gear, pneumatic and electric actuators can be chosen.5. Special design ... flow rate and low flow resistance.6. Suitable medium: water, sewage, sea water, air, steam, food, medicament, oils, acids, alkalis ... 7: Painting: expoxy Paint, Methods of operation: Worm Gear.Material List No.PARTS NAMEMATERIAL1BodyCast iron/ductile iron/SS/ ...