Emerson updates ASCO Series 327C solenoid valve with new safety and control features

ST. LOUIS, Missouri, United States, 29 October 2025: Emerson said it has enhanced its ASCO Series 327C solenoid valve with the addition of new intrinsically safe and manual-reset construction versions. Making the announcement through a Press Release, the company said the valve is designed with a direct-acting, high-flow technology that, according to the company, offers superior flow-to-power ratios, making it suitable for high-demand industries such as power plants, refineries and chemical processing facilities.

Emerson said the Series 327C offers a balanced poppet construction to support high-flow efficiency and can operate in harsh environments with temperatures ranging from minus 60 to 90 degrees Celsius. The company added that the valve’s unique two-layer dynamic seal technology reduces friction and ensures stiction resistance, providing reliable and consistent performance over its lifecycle.

Emerson said the newly introduced 327C is an intrinsically safe model that eliminates the need for an electronic booster, allowing more consistent partial-stroke testing and enabling faster response times. Emerson added that the manual-reset variant provides an additional layer of operational assurance for critical applications.

Anne Sophie Kedad, Director Marketing Process and Sustainability, Emerson said: “Facilities in demanding industries like power and chemical processing need valves that offer long-term performance with minimal maintenance. With the Series 327C, we are not only providing superior valve performance but also meeting the industry’s growing need for intrinsically safe solutions capable of performing critical operations with minimal downtime and lower maintenance costs. This new IS construction enables our customers to access a much more simple design as there is no electronic booster to operate the solenoid valve.”

Emerson said the ASCO Series 327C provides a globally approved solution, reducing supply chain complexity for industrial users and simplifying valve specifications. The company added that features including a unique electrical test connection help streamline field commissioning and prevent moisture ingress during storage, providing added value to OEMs and end users.