Valves go ATEX: Where Hazardous Duty Meets Digital Hydraulic Control

Related Vendors

DÜPERTHAL Sicherheitstechnik GmbH & Co. KG

TURCK GmbH

Donadon SDD Srl

Moog GmbH

To reduce downtime due to installation and maintenance, we incorporated a unique feature in the ATEX Digital Interface Valve Series called ‘hot plugged connector capability.’ This enables the user to connect and disconnect the valve with the electrical supply switched on. These connectors meet the demands of shock and vibration. For use in rough environments (e.g., offshore applications), all provided power and data cables are mudprotected.

We completed initial builds of the system in 16 weeks from the date of order with integration during startup. The new version of the valve configuration software helped to make the setup, diagnostics and tuning easier for the energy services company. The initial application has led to projects in areas where customers did not typically use proportional control.

Background on the ATEX Digital Valves

The ATEX Digital Interface Valve series is available in sizes 03 and 05 (according to ISO 4401). Pilot operated valves are available in sizes 05 to 10 and the maximum operating pressure is 350 bar (5,000 psi).

The valves are certified according to the ATEX guideline II 2G Ex d e IIC T6/T5/T4/T3 Gb, which defines various environmental conditions where customers can use the product.

The products can operate reliably in range of -20 to +60 °C (-4 to +140 °F) for ambient temperature and -20 to +80 °C (-4 to +176 °F) fluid temperature. These temperature ranges depend on certified temperature classes according to ATEX. Applications for low temperatures down to -40 °C (-40 °F) are also available upon request. The IP protection class is IP66.

* The author is Development Engineer at Moog

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