This quick, two-minute YouTube video, Local Operation of a Bettis EHO Actuator, shows how to manually open and close a Bettis EHO actuator while the unit is in local mode
Local Control for Electrohydraulic Valve Actuators
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hydraulic valve actuator
Driving to Zero Emissions with ECAT Valve Actuation Technology
In a Control Engineering magazine article, New hydraulic actuator designs offer zero emission options, Emerson’s John Carroll highlights new actuator designs that eliminate these emissions.
Hydraulic Actuators for Regulating Large and Quick-Stroking Time Valves
Author: Stefano Belletti Process plants, not only in the oil and gas sector, are becoming increasingly complex in a competitive environment. Therefore, the performance of regulating and modulating valves is also an area where we need to focus our attention to improve...
Hydraulic Partial Stroke and Diagnostics on Emergency Shutdown Valves
I've discussed partial stroke testing (PST) as a diagnostic for the health of a valve in many posts over the years. These posts describe flow applications found in most process manufacturing facilities. But what about high-pressure and hydraulic applications including...
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