... :316End bell (upper and lower): 316 Middle part:316 Motor shaft:316Motor Seal: Rubber O-ring seal, mechanical sealMotor regulating ... hammer impact.4 High head with singlestage, strong stability,the shaft diameter φ28mm, improving the equipment’s torsional property. Bearing ... liner. Supplys:Seawater submersible pump (including the body and motor), built-in checkvalve, 1 flange matching outlet, 8 bolts ...