Parker air pressure regulators boost reliability in rail applications

Electro-pneumatic air pressure regulators offer performance at temperatures down to -40°C, meets latest European railway standards

02/08/2011


Parker Hannifin EPP3 air pressure regulatorParker Hannifin introduced a range of electro-pneumatic air pressure regulators reported to provide flexibility, precision and energy savings in rail industry applications, including the control of adaptive suspensions. The EPP3 series has been designed to enhance system performance and reliability, as well as meeting the latest European railway standards, including EN 50155, which govern electronic equipment used on rolling stock.

For example, these electro-pneumatic devices are ideal for controlling the movement of each car on Pendolino tilting trains as they enter curves. In particular, the EPP3 air pressure regulators can be used for the accurate and rapid control of the pneumatic cylinders used to ensure the stable position of the car independently of each set of bogies.

Using an integrated electronic control system with pulse width modulated solenoid valves, the EPP3 regulators control the output pressure proportionally to an analogue electric signal, purportedly achieving ultra high precision by means of an internal feedback with an integrated pressure sensor. Furthermore, an integrated shut off valve ensures the safety of the installation.

In addition, these IP65 rated pressure regulators have been reportedly developed to provide a particularly long and reliable operating life. Indeed, they can withstand use in the most extreme and severe conditions, even with contaminated air, and offer high performance operation at temperatures down to -40°C.

Parker Hannifin EPP3 Series (PDF)

 

www.parker.com

Parker Hannifin

- Edited by Gust Gianos, CFE Media, Plant Engineering, www.plantengineering.com



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