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Compact valve actuator control system saves panel space

15 September 2008

Asco numatics' new 1/4" and 1/2" actuator control system (ACS) is a compact range of standard, explosion proof systems for the control of actuators on process valves. The range comprises solenoid valves, spool valves, manual reset valves and filter regulators and may also feature redundant components to prevent unplanned shutdowns. The new range has many applications in the process industry and addresses the growing demand for manifold systems, especially in applications where corrosive atmospheres (for example offshore), are present.

The high reliability modular Actuator Control System uses proven ASCO technologies and is manufactured in 316L stainless steel to resist aggressive environments. Tested up to 150 bar, the system features an optimised flow path and is lighter, stronger and more compact than conventional panel mounting assemblies.

The components are connected by means of a versatile, leak tight coupling system and mounted on a vibration resistant and shock proof stainless steel base plate. The modular system eliminates complex arrangements using panels, pipes and additional fittings and is pre-assembled ready for use. Available in ¼” and ½” NPT sizes, the system is quick and easy to install and maintain, offering significant savings in the total installed cost.

Many configurations are possible with filter regulators and various single or redundant valves with wide pressure ranges and no minimum operating pressure. A selection of explosion proof solenoids is available with ATEX /IECEx (Ex d, Ex em, Ex i), NEMA, UL and CSA approvals. In addition, the solenoid valves are TÜV certified to IEC 61508 and can be used in safety instrumented systems with a safety integrity level (SIL) up to SIL-4, the highest rating.

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