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Ball valves [2009-04-07]

Air and Hydraulic Systems has released the new generation ball valve from Austrian valve manufacturer Praher Valves, available in sizes DN10 – DN50, with ball seats in PE or PTFE and O-Rings in FPM or EPDM.

According to the company, the PVC series S6 has a guaranteed quality of assembly as a result of its fully automatic robotic assembly system.

Manufactured from PVC-u resin suitable for drinking water applications, S6 valves are certified food grade to NSF, ACS, WRAS and IIP, as well as being UV stabilised.

The valve also features special ‘saw tooth’ thread, with optimised convolutions for fast and simple assembly of the union nuts, and double-block retention of the ball for added security.

Double O-Ring seals on the shaft are designed to add leak resistance.

According to the company, no mechanical finishing of components is required, and this combined with fully automatic assembly, guarantees consistency of torque values and tightness of each valve.For more information,please visit