hydraulic directional valve symbols MPC70-3QTw for construction machinery Quick View:Directional control valves MPC70 are used in hydraulic systems with the flow up to 70 l/min. The sectional design makes the valve flexible and easily adaptable to a variety of applicat...
In practice the equality K5=K4 cannot be long preserved, since the valves vary in time. Furthermore this equality cannot be maintained over the whole extent of a frequency range, on account of the errors of single control. Means of sufficiently equalising the coefficients K4 and K5 will now ...