It is possible to choose several types of liquid valves. Each has advantages as well as disadvantages. In general, a two-way valve is selected for applications that require the stopping and starting ...

What an actuator is, and what the difference is between linear and rotary The three main energy types—electric, pneumatic and hydraulic—plus thermal, magnetic and piezoelectric What to keep in mind ...

The article will then look at valve types very briefly before focusing on digital positioners. It will examine the expectations that the user should have with regards to digital positioners, for ...

Plant engineers at Eskom’s Majuba Power Station in South Africa have been continuously looking for ways to improve efficiency and reliability. The six-unit, 4,000-MW, supercritical coal-fired plant ...