((1) Setting of overload relay
Because rated current at normal output in the canned motor is slightly higher than that in general motors, set at the rated current indicated on the name plate and a data sheet.
When operating current is far below of rated current, ii is recommended to set the relay based on operating current not rated current.
(2) Priming and air venting
Complete priming should be carried out in the following order. Open vent valve slowly and pay attention for liquid, specially for toxic or high temperature liquid.
1) Close discharge valve
2) Open suction valve
3) Open discharge valve for a few seconds and close it again.
4) Bleed air from the air venl valve . If handling a dangerous liquid, pay full attention to air venting. For R and RA-type pumps, there is no need for air venting. But all valves in reverse circulation piping should be opened