PUMP BODY: cast iron, with UIN ISO 228/1 gas threaded suction and delivery openings.MOTOR BRACKET: cast iron,IMPELLER: brass, centrifugal radial flow.MOTOR SHAFT: AISI 314 stainless steel,MECHANICAL SEAL: ceramic and graphite,MOTOR:The pumps are coupled to an asynchronous, high efficiency JY inductionmotor of suitable size, which is quiet, closed and externally ventilated,suitable for continuous duty. The thermal cutout replay (motor protector ) is incorporated in all singlephase motors.Three phase motors require an adequate external motor protector, withconnections according to current standards.INSULATION: Class B (Class F) PROTECTION: IP 44.WARRANTY: 1 year.