One of the most common questions that MRC Global receives is how a manufacturer can be included on our Approved Manufacturer List (AML). It is not a quick or easy process. After an initial evaluation including commercial aspects and product testing, the final step towards earning a place on MRC Global’s AML is an on-site assessment of the manufacturer’s facilities. That is where we come in. Both of us have more than 30 years of experience in the manufacturing and quality realm.
Meeting Torque Requirements As I have noted before, selecting the correct actuator for the size and purpose of the valve is important, but it’s only the first step in selecting the best overall valve automation solution. If the actuator isn’t sized by a knowledgeable and technically trained expert, the results can be disastrous and/or expensive.
Identifying Fail Mode Specifications Actuator fail mode is the position that the actuator takes after the control signal and/or the supply pressure is lost. This step is vital to the proper sizing of an actuator because if the wrong fail mode is specified, the actuator will not fail in the correct position when, often, people’s safety or the integrity of the system is in jeopardy.