Description: Relationship between the head of the pump to the flow rate at certain working/design conditions of speed and pumped material.; Name: Pump characteristic curve
Description: pump H(Q) curve where the maximum head and shut-off head are coincidental, and the total head declines continuously as the rate of flow increases; Name: Pump H(Q) curve
Description: norm describing the material. The material number is taken from this norm. Type and number of the norm with issue year and issue month must be given; Name: Reference norm material of the shaft