Description: for a proportional element, the quotient of the change in the output variable and the associated input variable; Name: proportional coefficient
Description: proportional element, the quotient of the variation of the output variable to the corresponding variation of the input variable; Name: proportional action coefficient
Description: average speed given by the stroke length multiplied with the number of complete pumping cycles of the piston, plunger or piston attached to the diaphragm per minute (stroke per minute or pump crank speed); Name: piston velocity