The Optiflux from Krohne is the only electromagnetic flowmeter (EMF) with liners that meet KTW and DVGW specifications. German drinking water supply companies demand without exception KTW approved sensor liners to protect their water from chemical impurities. KTW is the German legislative provision governing the use of plastics and drinking water, which is now mandatory. A new requirement is that suppliers also be in compliance with DVGWs (German Association for Gas and Water) code of practice W 270, 'The spread of micro-organisms on non-metallic materials. This standard deals with the protection of portable water from biological impurities by specifying sensor liners that are certified to be safe.
After initial hesitation because no appropriate equipment was available on the market, suppliers are now implementing the requirements for applying biologically safe materials as strictly as they implemented the chemical compatibility specifications. For example, GELSENWASSER, Germany's largest drinking water supply company, specifies: "Plastics shall comply with KTW recommendations and test criteria specified by the DVGW W 270 Code of Practice". The municipal water works in Göttingen and Duisburg issue similar specifications.
Optiflux is available with either a polypropylene or hard rubber liner. Both materials have received KTW approval, and the hard rubber liner is also certified to W 270. Krohne therefore makes the only electromagnetic flowmeter that meets the statutory requirements.
Bacterial contamination can occur in potable water reservoirs, piping, plastic valves or plastic-lined EMFs used in potable water networks. Low molecular weight organic compounds are formed between the liner and the water, or a micro bacterial growth (slime) that becomes a breeding ground for bacteria, amoebae and fungi builds up. The equipment and systems may require cleaning using pressure washers, chlorine bleach solutions or pigging. It would be much better to prevent or limit such contamination in the first place. This can be achieved by choosing a suitable synthetic liner in an appropriate meter such as Optiflux.
Inline process solutions for gold mining Anton Paar
Flow Measurement & Control
[Sponsored] The extraction and processing of gold ore requires precision and efficiency to maximise yield and minimise losses. Automation and continuous monitoring of critical process steps are essential to ensure optimal production. Anton Paar offers advanced inline measurement solutions which enable full automation and real-time monitoring of key steps in gold extraction and processing.
Read more...Magnetic-inductive flow sensor ifm - South Africa
Flow Measurement & Control
The SMF magnetic-inductive flow sensor revolutionises liquid and creamy flow measurement. With IO-Link, it enables digital data transmission, eliminating blind spots in production.
Read more...Hygienic flow measurement for the food industry ifm - South Africa
Flow Measurement & Control
With the SMF magnetic-inductive flow meter, ifm offers a solution for the hygienic flow measurement of media with variable flow rates through a pipe, such as beer, milk or fruit juice.
Read more...Case History 197: Bad reboiler temperature control. Michael Brown Control Engineering
Editor's Choice Flow Measurement & Control
It is very important that reboiler temperature controls operate well in petrochemical refineries, or the product quality can really suffer. I was asked to check such a control in a refinery where they were having problems with one of these controls.
Read more...Precision measurement for ultra-pure water systems Anton Paar
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...Radiometric density measurements Mecosa
Flow Measurement & Control
Radiometric density measurements are used wherever conventional measurement techniques fail. Successful applications can be found in a wide variety of industries, especially where harsh process environments and difficult measuring conditions prevail.
Read more...Battery-powered magmeter
Flow Measurement & Control
The RWEM/D battery-powered electromagnetic flow meter from Royce Water Systems is ideal for water and wastewater systems located at remote sites.
Read more...Precise process and maximum savings with VEGABAR VEGA Controls SA
Flow Measurement & Control
Accurate measurementsof differential pressure is crucial for safety, efficiency and optimising operational processes. For over 40 years, VEGA has supplied industry-leading pressure measurement solutions, establishing itself as a trusted expert with a proven track record in sensor technology.
Read more...Innovative solutions for low flow dosing with high precision Mecosa
Flow Measurement & Control
n the food, pharma, and chemical manufacturing industries, precision and efficiency are of utmost importance. Bronkhorst High-Tech has developed a flexible solution that meets today’s requirements for highly accurate dosing, whether continuous, in ratio, or in batches.
printer friendly version