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What are valve actuators?

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In this latest informative blog, BM Engineering takes a look at valve actuators and how they are utilised in a number of different applications. We take an in-depth look at some common features of actuators and the industries that they’re used in.




What are valve actuators?

Valve actuators are mechanisms that are used for the opening and closing of a valve. There are a number of different actuators available here at BM Engineering. For instance, our line of power-operated valve actuators use either gas pressure, hydraulic pressure or electricity to allow a valve to be adjusted remotely or allow fast operation of large valves. Power-operated valve actuators can also be used as the final element of an automatic control loop, which will regulate flow, level and other processes.


Valve actuator applications

There are a number of different industries where valve actuators are used. As these actuators are predominantly used with industrial valves, they can often be found in a wide variety of process plants, such as in waste water treatment plants, power plants and mining. Valve actuators also play a large role in process control automation.



Valve actuator features

Some of the features of an electric actuator include a motor, which is the driving force behind the actuator. They also include limit and torque sensors, which will signal when an end position has been reached. Valve actuators generally include valve attachments and fieldbus connections, to name but a few.


Bürkert Pneumatic rotary drive – Type 2051

Type 2051 Available from BM Engineering, Bürkert’s 2051 pneumatic rotary drives are low maintenance single or double-acting pneumatic linear piston actuators where linear movement of the piston due to the pilot air causes a 90º rotation of the connected valve. Actuator-valve coupling is made via a universal ISO 5211 mechanical interface and the status of ball or butterfly valves can be monitored through a range of rugged feedback switches. The drives can also be used as modulating control actuators with the addition of Bürkert’s range of side control positioners. Features and benefits: • Modular program for mounting of quarter turn valves such as ball valves and butterfly valves. • NAMUR and ISO 5211 interfaces. • Position feedback (including Ex-Versions). • SideControl Positioner ready. Speak to BM Engineering Supplies today about our complete range of products and services by calling 0141 762 0657 or email sales@bmengineering.co.uk.




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