Speed regulation with double-acting cylinders

In the forward stroke (exhaust air flow control)

The one-way flow control valve is at the port that exhausts the compressed air (exhaust air flow control). The escaping air is routed through the flow control valve. Exhaust air flow control is the method used most frequently with double-acting cylinders. Speed regulation is unaffected by load.

In the forward stroke (supply air flow control) (not suitable for vertical cylinder arrangements)

The one-way flow control valve is at the port that supplies the compressed air (supply air flow control). The set speed is only effective in the forward stroke. Minimal load fluctuations at the piston rod result in huge irregularities in the feed speed. A load in the cylinder's direction of movement accelerates the cylinder above the set value.

In the forward and return strokes

Exhaust air flow control using two one-way flow control valves. The speed can be set separately for the forward and return strokes.