December 2009Flow Measurement & Control
Mass Measurement
A corrosion-resistant Coriolis mass flowmeter.
Krohne has launched a new tantalum version of its OPTIMASS 7000 Coriolis mass flowmeter to handle the highly aggressive and corrosive fluids found in the chemical industry.
The past decade has seen Coriolis flowmeter technology become the accepted standard in many chemical industries. However, one area where the technology was challenged was the measurement of highly aggressive and corrosive fluids. This was due to the commercial availability of a suitable measuring tube material to cope with these chemicals.
Generally, the wall thickness of Coriolis measuring tubes are significantly less than the associated process piping, which will tolerate a higher rate of corrosion before failing. This is an area where wetted material selection for a Coriolis meter is critical.
Tantalum has been used by some Coriolis manufacturers in the past, but the twin bent tube designs made these expensive. This was due to the flange, flow splitter as well as the measuring tubes all being made from tantalum.
It was not until the advent of the single straight tube design that the material started looking more attractive, now only needing the measuring tube and the raised face of the process flange to be made from tantalum. This brought major cost advantages over the equivalent bent tube designs, but was not easy to achieve as tantalum does not have the same tensile strength as titanium which is traditionally employed.
Krohne has applied its years of experience to perfect the technology of containing the stress created in a straight tube due to thermal expansion and is now in a position to make this innovative technology available in highly aggressive and corrosive chemical applications.
The tantalum alloy used is made up of 10% tungsten and 90% tantalum. It is the ideal material for use in the OPTIMASS 7000 as tungsten provides the additional tensile strength required to handle the stresses associated with straight tube technology.
“This is another innovation from our research and development team who have employed over 15 years of experience in single straight tube design to harness this technology,” said Frank Grunert, global product manager for mass flow. “If you have measurement problems with a glass lined process pipe or glass lined vessels, then OPTIMASS with tantalum is the solution as tantalum has similar chemical resistance to glass.”
How utilities identify water losses in Northern Europe
Flow Measurement & Control
Norwegian leak detection specialist, Ovarro outlines how municipalities are responding to hidden water loss using acoustic monitoring and analysis tools that provide early indications of developing leaks.
Read more...Senix sensors provide flood warnings Instrotech
Flow Measurement & Control
To create the world’s most sophisticated flood monitoring and forecasting system, the US State of Iowa’s Flood Centre (IFC) uses more than 200 Senix ToughSonic 30 and ToughSonic 50 ultrasonic sensors to measure water levels in streams across the state.
Read more...Mastering inline LNG flow monitoring
Flow Measurement & Control
[Sponsored] As global demand for cleaner, more flexible energy sources continues to rise, liquefied natural gas (LNG) stands at the forefront of the energy transition. Engineered for excellence in cryogenic environments, the Anton Paar L-Cor 8000 flowmeter redefines inline LNG flow monitoring.
Read more...Dosing chlorine gas safely and sustainably
Flow Measurement & Control
Chlorine gas is central to a range of industrial processes but is highly dangerous. The solution is the deployment of a system solution for chlorination from Lutz-Jesco.
Read more...Oil monitoring solution drives performance gains for paper mill SKF South Africa
Flow Measurement & Control
By integrating real-time monitoring with precise flow control, SKF’s Flowline oil monitor meters have significantly improved the flow rate control and performance of oil circulation lubrication systems installed on a paper mill.
Read more...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.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version