Coaxial valves

Sunday, 05 October, 2008 | Supplied by: Air & Hydraulic Systems Pty Ltd

The coaxial valve range from RSG GmbH offers a compact design, actuated by solenoid or pressure pilot and suitable for a wide variety of media with pressure ratings to 250 bar. Available in 2/2 and 3/2 versions, they are directly actuated and operate from 0 bar inlet pressure.

Coaxial valves are bi-directional in design, with the media passing in a straight line through the control tube without any significant directional changes to its axial flow. This flow path and the pressure balanced control tube makes these valves suitable for applications involving vacuum, gaseous, liquid, gelatinous, highly viscous, contaminated and aggressive media and as a result of their single moving part, offer fast actuation, long cycle life and low maintenance.

Available with port sizes from G1/8" to G2" and bodies in brass or stainless steel, coaxial valves may be used as individual, standalone valves or may be banked together in a modular configuration where a number of valves must be fitted into a confined space.

Predominantly used for the control of cutting fluids and lubricants on machine tools in the past, more recently coaxial valves have been applied in the control of LPG, high-pressure helium gas for leak testing, high-speed hydraulic service and the process control and food industries.


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