The unidirectional flow controllers are equipped with M5 G1/8 G1/4 G3/8 and G1/2 ports. G1/8 and G1/4 ports are available with two different types of adjustment whereas M5 G3/8 and G1/2 ports have just one type of adjustment. All models can be panel or wall mounted or they can be mounted on cylinders as required. To choose the most suitable model it is recommended to: 1. calculate the quantity of air in Nl/min 2. determine the stroke time of the cylinder