Focus On : Valves, Actuators and Positioners

valves and actuators

Advances in control valves, valve actuators and positioners are changing the shape of industrial automation and control for plant engineers.

Examples include: a digital valve controller (electronic positioner) with automated diagnostics; and a wireless plug-in for accessing valve maintenance data even on plants running with older 4—20mA control systems. Then there are: new packings and seals, to reduce fugitive emissions; improved valve trims, for plant noise reduction and increased valve life; and valve controllers with contactless feedback, cutting out mechanical actuator linkages and, again, improving maintenance-free control valve life expectancy.

Plant Engineer's coverage of valves, actuators and positioners includes even a lowly butterfly valve now turned from shut off valve into rotary control valve with ball valve or globe valve performance.


Re-engineering valves

The diaphragm valve provides an economical control solution for many ...
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High performance actuator

INMOCO, the motion control specialist, has introduced new electric servo ...
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Steam turbine actuator

INMOCO has added a range of advanced electromechanical actuators (EMAs) to ...
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Modulating damper actuation

Nearly two hundred Auma electric actuators have been supplied to Greece’s ...
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Adaptable angle seat valve

Featuring a patented interface and award-winning modular product ...
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Smart IO-Link connectivity - 09/05/2017
Modern valve island - 24/04/2017
Valves improve efficiency - 15/03/2017
Control valve solution - 08/02/2017
Maintenance concerns - 24/11/2016

LNG valves for the Arctic

IMI Critical Engineering has clinched several major contracts for one of ...
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Power grab

Managing your factory's energy usage effectively can pay real dividends in ...
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Taking control

Control valves – and specifically their actuator and positioner systems – ...
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Pole position

Although control valve, actuator and positioner technologies develop only ...
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Control Revisited

Control valves, actuators and positioners aren't renowned for rapid ...
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Instruments for control - 06/10/2010
Control valves best practice - 01/01/2010
Opening up on control valves - 01/12/2009
Testing safety valves - 01/04/2009
Open & shut case - 01/02/2009