Ultrasonic level measurement

Ultrasonic Level Measurement

Ultrasonic level instruments measure the distance from the transmitter (located at some high point) to the surface of a process

Control System

The need for automatic controls

The subject of automatic controls is enormous, covering the control of variables such as temperature, pressure, flow, level, and speed.

shape of the trim determines the valve characteristic

Control Valve Characteristics

All control valves have an inherent flow characteristics that defines the relationship between ‘valve opening’ and flowrate under constant pressure