Heated Filters for Gas Analysis
Heated filters are perfect for diesel exhaust gases. The sampling system and filter can be heated to prevent water condensation during gas analysis.
Analyser
CO2 Scrubber and other Adsorber Housings
Adsorber Housings, with plastic or stainless steel bodies, are a simple, cost effective solution for the adsorption of various chemical vapours in a gaseous stream, for example a CO2 scrubber. The hollow tube, with integral filter diverts the gas flow to the base of the bowl allowing complete passage of gas through the adsorber granules. Simply remove the filter bowl…
Float Housing for Analyser Protection
Analyser protection usually consists of a coalescing and/or a particulate type filter to remove liquids and solids. But what happens when the housing isn’t serviced and becomes flooded with liquid? The liquid will carry over and reach the sensitive (and expensive!) analyser – we have discussed this on the blog before in this post System…
Sample System Filters Offer Flexibility
In this post we look at the importance of flexibility required when selecting the correct sample system filter. Process analysers continuously measure part of a process stream very accurately. The sample conditioning system is one of the most important issues for process analysis. Many analyser sample systems use a “fast loop” bypass flow to rapidly…
Video – Diesel Exhaust Analyser Filter Housings
Diesel Exhaust Analyser Filter Housings Many for our distributors and customers have asked us how specific products in our range work? So we have produced a video to cover this topic and show in this video the benefits of our “Diesel Exhaust Analyser Filter Housings“. Our filter housings are designed to be heated easily using a…
Missing the Genie Filters® Model 101?
We are often asked about our comparable products to Genie® Filters and always listen to customer needs for alternatives. So what do you need this month? It seems there is a demand for an alternative to the Genie Filters® Model 101 and so we now offer our GSM105 series PTFE-membrane housings. They provide a simple and compact…
AQE 2013 – Last Chance To Register
This is the last chance to register for the Air Quality and Emissions event next week. The event takes place every two years so the next chance to attend the high quality workshops and meet with over 70 equipment and service providers won’t be until 2015. Registration to attend the exhibition and over 40 workshops at…
Air Quality and Emissions Show – 13th & 14th March 2013
Classic Filters will be exhibiting our range of products suitable for analyser and emissions monitoring at the Air Quality and Emissions Show in Telford on the 13th & 14th March 2013. Visit our stand number 64 to discuss your filter applications. Topics being covered at AQE 2013 include: Ambient Monitoring, CEMS, Dioxin Monitoring, Mcerts, Regulation,…
PTFE Membrane Housing – SM105 becomes SM106 series
As part of our company ethos, we like to listen to our customers to gauge feedback on our current products. And as a result of the customer review, we found that some of you had a requirement for a small series 200 bar PTFE membrane housing to be added to our product range. We looked…
Dead Volume Often Overlooked in Sample Systems
Often the most overlooked area when designing a sample conditioning system is the dead volume, or dead space, in the filter housing. Dead volumes are parts of the sample system where fluid can become stuck and won’t be able to move along with the main flow of the sample. What is best size filter housing…
Filter Product News – SS117 and SS127 series are now rated at 350 bar
We have some great news. The very popular SS117 and SS127 series, our smallest internal volume 316L stainless steel filter housings, are now built as standard to 350 bar maximum working pressure. We know that most applications don’t require anywhere near this kind of pressure, but because we have been asked quite regularly for process…
System flood safety – float housing
Recently we had a customer who had installed a filter system in his sample system to protect an online analyser. This sample system comprised of a coalescing filter followed by a finer particulate filter. The customer wanted to be certain that any liquid being removed by the coalescing filter was draining away from the housing…
Fast Loop Filters – what are they and why are they used?
Fast Loop housings can be used in sample systems to transport the sample closer to the analyser at high speed to reduce analyser response times. Where do Fast Loop Filters fit? The housing fits into the fast loop or bypass line wand has a direct flow straight through the fast loop housing and through the…
Should a membrane be supported on one side or on both?
A question that has been asked a lot is when using a membrane as a filter to stop moisture passing, should the membrane be supported on one side or on both? The first thing to look at is the membrane itself. What is a membrane filter? The membrane is a very thin film of hydrophobic PTFE which means…
Panel Mounted Filter Application – how to make filters accessible for element change
Analyser manufacturers and system builders are often equested to have the filters accessible for ease of element change. The problems that are faced can include a complication in the systems where the element needs to be changed after each test or where shut down time has to be kept to a minimum. How We Make…
Too Much Liquid on my Membrane – what is the Liquid Block option?
Do you need a Liquid Block option? One of the problems with a PTFE membrane is if it sees too much water, it will eventually breach and allow moisture through to the analyser or piece of equipment being protected. For this reason we always suggest that the membrane only be used as a police filter…