Liquid filter

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Fast Loop Filters for Bypass Applications Classic Filters offer fast loop filter housings that minimise the time delay associated with sample systems for on-line analysers. A relatively high flow is used to get the sample close to the analyser, before the low flow sample is split using the filter housing and the rest of the flow returned to the process via the fast loop. This allows a continuous flushing of the filter element, greatly increasing its service life as well as reducing the internal volume of the system to greatly improve the response time of the sample conditioning system. Our stainless steel filter elements are recommended for these applications – they offer a good resistance to corrosion and can withstand the continuous-flushing effect. Another advantage of the stainless steel filter elements is the ability to be cleaned by back-flushing. Below is a fast loop filter in a typical sample system – this also has a coalescing filter housing to remove any liquids from the gas sample.