Description: Measured flow rate passing through the volute outlet divided by the cross-section of the volute outlet.; Name: average velocity in the spiral housing outlet area
Description: measured rate of flow passing through the exit from the volute divided by the throat area; Name: mean velocity at throat
Description: Allocation of the devices according to deployment site and cause of the hazard. NOTE: The Group II operating media are further subdivided into explosion groups and temperature classes; Name: Explosion protection device group of the pump