Description: optimum total head which a pump achieves at the point of best efficiency; Name: Optimum head of the pump
Description: Total head developed by the pump at a rate of flow corresponding to the best efficiency; Name: Optimum head
Description: Motion direction (rotating direction) in the case of rotation. NOTE: The rotational direction takes place in view of the targeted end. Anti-clockwise shaft rotation (left L) is described as positive and clockwise (right R ) as negative. Rotational direction-independence is described with (S); Name: Rotational direction of the drive