ESD (Emergency Shutdown) and Partial Stroke Testing
Jan 10 2008 Read 2537 Times
Samson’s (Germany) Type 37303 Electropneumatic Positioner, which has also been enhanced to include an ESD function, has been designed to perform partial stroke tests on the valve. The combination of certified components and positioner functions meets all the necessary safety requirements. The positioner can be mounted on the valve in addition to the solenoid valve or to replace it. It allows the valve to be moved precisely to follow the set point within the valve’s working range. The partial stroke test completely integrated into the positioner detects a sticking valve caused, for example, by corrosion. Test schedules are made flexible and can be prolonged, if necessary. The required test validation can be performed simply by using the corresponding instrumentation and initiating it over a commonly available SIS logic solver.
Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.
In This Edition... Fuel for Thought - A good year for Endress+Hauser - Dr. Shah honoured by Society of Tribologists and Lubrication Engineers - DURAG Group acquire AP2E Analytical Instru...
View all digital editions
Aug 27 2018 Stavanger, Norway
Sep 03 2018 Abu Dhabi, UAE
Sep 03 2018 Muscat, Oman
Sep 04 2018 Los Angeles, CA, USA
Sep 04 2018 Kazan, Russia