Freedom in machine design

3rd Quarter 2013 Hydraulic systems & components

Commercial Shearing has recently completed an order for stackable hydraulic control pressure valves (joy sticks) intended for the proportional, hydraulic control of directional valves. This type of pilot valve can also be used for piston pump applications where pilot control is used to vary the displacement of the pump.

Design

The valve is made up of sections, each of which contains two 3-way pressure reducing valves (one per signal port). Up to six sections can be stacked into one and the same valve to give a total of 12 signal ports. Valves with four signal ports can be equipped with a coordinate lever (joy stick). The cast-iron valve housing and reducer-valve spools of hardened, precision-ground steel ensure a long service life with minimum internal leakage. Special low friction seals give effective protection against external leakage.

Commercial Shearing also supplies pilot operated directional control valves with flows from 45 – 450 litre/min.

Freedom in machine design

Good machine design is heavily dependent on the availability of versatile components and the use of pilot control valves gives the freedom to design a machine optimally since they allow components such as control valves to be located ideally on the machine.

For more information contact Ken Beaumont, Commercial Shearing, +27 (0)11 397 4264, [email protected], www.commercialshearing.co.za

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