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Compelling reasons to choose Emerson as your partner for hazardous area solenoid valves

02 October 2017

With so much online information available for selecting solenoid valves for extreme and hazardous environments, process engineers may be tempted to work on their own but as a major global supplier Emerson strongly believes that its ASCO product range, know-how and inclusive application support delivers significant benefits.

ASCO ATEX and IECEx certified solenoid valves
ASCO ATEX and IECEx certified solenoid valves

With one of the process industry’s widest range of ATEX and IECEx approved solenoid valves, extensive expertise in hazardous area applications and an unrivalled capability in international functional safety standards, Emerson is a perfect partner for engineers developing process control solutions for liquid or gas processing systems in challenging environments.

ATEX solenoid valve range

Emerson’s comprehensive range of ASCO ATEX and IECEx certified solenoid valves for use on actuator control applications located in hazardous areas covers direct acting poppet solenoid valves and solenoid operated spool valves that suit the widest range of industries from oil & gas to life sciences and from power generation to food & beverage. An unprecedented choice of valve body materials, flow rates, functions, pressure ratings and port sizes that meet the ATEX 2014/34/EU directive combine with a wide range of ATEX pneumatic components.

Standard solenoid valve solutions for Zones 0 through 22 in a wide choice of temperature and protection classes are available whilst special functional safety systems can be designed and built to specific requirements.

Expertise in global hazardous area applications

Emerson expertise in hazardous area and explosive environments does not stop at ATEX and IECEx certification. As a global manufacturer of ASCO Solenoid Valves, Emerson holds many other approvals including UL, CSA and FM as well as NEPSI for China, INMETRO for Brazil, and CUTR for Russia. This means fully inspected and certified valves can be approved for use in dangerous conditions throughout the world.

Functional safety systems competency

Emerson’s comprehensive range of ASCO solenoid valves, manual reset valves, redundant coil solenoid valves, actuator control systems (ACS) and redundant control systems (RCS) are the fundamental building blocks for safety instrumented systems (SISs). With proven reliability and industry leading availability gained over several years and with thousands of successful applications, these functional safety products and systems are certified to IEC 61508 Parts 1 and 2, and rated up to SIL 3 and capable for domestic and international markets. Emerson’s specialist understanding of safety loops and single point of contact technical support can help you design your SIS with engineered solutions that reduce design and assembly time. Full documentation with each SIS includes MTBF information and PFD values making safety calculations and management easier. 

ASCO ACSs and RCSs are designed to withstand the maximum pressures and temperatures of your application and can be supplied as ATEX compliant and TÜV and/or Exida certified to IEC 61508. All SIS components are designed for maximum industrial strength and can include corrosion resistant and optional NACE-compliant materials ensuring utmost durability.

With its ability to perform automatic online testing of the redundant solenoid valves, and with automatic partial process valve stroke testing and the capability for online maintenance, the ASCO RCS is the only pilot valve system that has no single point of failure that could result in an unwanted closure of the process valve.

These are just some of the compelling reasons why so many engineers responsible for mission-critical applications turn to Emerson’s expertise in hazardous area fluid control for ATEX certified solenoid valves and complete functional safety systems.


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