Flowmeter for steam energy management
November 2006
Flow Measurement & Control
Spirax-Sarco's direct in-line variable area (DIVA) flowmeter is an ideal system for steam energy management schemes. It operates on the well-established spring loaded variable area (SLVA) principle, where the area of an annular orifice is continuously varied by a precision shaped moving cone. This cone is free to move axially against the resistance of a spring.
However, unlike other SLVA flowmeters, the DIVA does not rely on the measurement of differential pressure drop across the flowmeter to calculate flow, measuring instead the force caused by the deflection of the cone via a series of high quality strain gauges. The higher the flow of steam, the greater the force. This removes the need for expensive differential pressure transmitters, reducing installation costs and potential problems.
DIVA provides high turndown with high system accuracy, high repeatability, and gives accurate readings over a wide range of flows. Its in-built density compensation and error elimination feature ensure the user of an accurate mass flow.
The unit is low cost and has no need for additional equipment or differential pressure transmitters, and with no impulse lines, maintenance, installation costs and potential problems are also reduced.
DIVA is 4-20 mA loop powered, has a compact wafer design and offers simple digital commissioning via an integral display.
For more information contact Richard Ransome, Spirax-Sarco, +27 (0) 11 929 6344, [email protected]
Further reading:
Flow measurement in mobile applications
ifm - South Africa
Flow Measurement & Control
The SU Puresonic Mobile ultrasonic sensor from ifm is characterised by its displayless design and high temperature resistance. It is ideal for mobile applications and processes with permanent media temperatures of up to 120°C.
Read more...
Optimising water quality in a building cooling system
ifm - South Africa
Flow Measurement & Control
A leading company in industrial water management has installed water treatment systems that not only optimise water quality but also help customers to improve their processes, thanks to the new insights and actions that can be generated based on the process data collected.
Read more...
New uncompromisingly simple flowmeter line for processes
Endress+Hauser South Africa
Flow Measurement & Control
The demand for simplicity in commissioning, operation and maintenance in industrial process plants has increased significantly in recent years. The new Proline 10 range of flowmeters from Endress+Hauser meets this requirement without compromise, because simplicity is the top priority.
Read more...
Rotork joins Rockwell Automation’s Technology Partner Programme
Flow Measurement & Control
Rotork has entered into the Rockwell Automation Technology Partner Programme, marking a significant step in expanding the company’s presence within the industrial automation landscape.
Read more...
Loop signature 29: Averaging or surge level control
Editor's Choice Flow Measurement & Control
There are many processes where it is undesirable for the load to suddenly change quickly, for example in the paper industry. Examples of level control have involved reasonably fast tuning. An example of a level loop tuned this way and responding to a step change in setpoint is given.
Read more...
A reliable water supply: The make or break in building metros across South Africa
VEGA Controls SA
Flow Measurement & Control
South Africa’s urban centres encounter substantial water supply challenges. Maintaining stable water infrastructure is essential for the health, economic vitality and well-being of communities.
Read more...
Uncompromising flow rate measurement
Burkert South Africa
Flow Measurement & Control
Bürkert’s FLOWave is a hygienic and safe flow measurement solution with many benefits for pharmaceutical or food production processes.
Read more...
Electromagnetic flow measurement
Siemens South Africa
Flow Measurement & Control
The SITRANS FM electromagnetic flowmeters from Siemens deliver high-precision volume measurement of electrically conductive liquid applications – from water, wastewater and irrigation to hygienic processes and even mining slurries with magnetic particles.
Read more...
ABB unveils next generation of electromagnetic flowmeters
ABB South Africa
Flow Measurement & Control
ABB has launched its latest generation of electromagnetic flowmeters, bringing unmatched accuracy, connectivity and flexibility to industrial and utility applications.
Read more...
Precision measurement for ultra-pure water systems
Flow Measurement & Control
[Sponsored] Ultra-pure water (UPW) is essential in industries where even minor contaminants can impact product quality and process integrity. Anton Paar’s L-Cor Coriolis mass flowmeters provide a highly accurate and hygienic solution by directly measuring the mass of the liquid using the Coriolis effect, ensuring a high level of cleanliness.
Read more...
printer friendly version