Industrial Automation Magazine India

Modular Angle Seat Valves, VZXA

Published on : Tuesday 30-11--0001

Flexible, robust and offering high performance – the angle seat valves VZXA from Festo control media flows quickly and reliably. Their carefully thought-out product architecture and patented interface enable valve bodies and actuators to be freely combined, thus offering even greater flexibility in the configuration of applications.

Different actuators and valve bodies can be combined for easy integration into the application. Individual, function-tested modules simplify the replacement of actuators during conversion or maintenance. The patented seal system prevents the operating medium from leaking out.

Simple installation

This unique interface between the modules means that the actuators can be replaced without opening the piping. The simple separation of valve bodies and actuators makes the installation of the valves in pipelines easier and faster. This advantage becomes particularly clear in the case of orbital welding.

The spindle seal is in the form of a cartridge. It comprises a stainless steel sleeve with a pre-tensioned domed seal packing consisting of PTFE sealing rings and can therefore be replaced simply and reliably without the need for special tools.

Robust materials

Angle seat valves VZXA consist of an angle seat valve body, a piston or diaphragm actuator and a visual position indicator. The flow-optimised valve body made of stainless steel is available in the nominal sizes DN15 – DN65. Available connection variants include threaded, clamp and welded connections as per American and European standards.

Stainless steel actuators are available in three sizes and with the control functions NC (normally closed), NO (normally open) and DA (double-acting). The maximum operating pressure, depending on nominal size, is up to 30 bar. The larger visual position indicator is fitted as standard. Thanks to the transparent position indicator cap made of polyethersulfone (PES), the valves can be used in chemically aggressive environments.

Interfaces are provided, together with internal channels for the operating pressure to allow the subsequent addition of positioners and valve control heads.

Contact:

Festo Controls Pvt Ltd, Bangalore.

Tel: 01800 425 0036, 01800 121 0036.

Email: [email protected], [email protected]