Filters 41 www.aftermarketonline.net NOVEMBER 2024 8QGHUVWDQGLQJ WKH WHFK EHKLQG RLO Ꭾ OWHUV Oil filters play an integral role in maintaining engine performance and longevity. There are several types of oil filters, all designed for specific tasks and applications. Here, Comline is focusing on spin-on oil filters, typically used in passenger cars and consisting of a metal canister with an internal filter element. It screws directly into the engine block to filter engine oil as it circulates. There are three valve types that are prevalent with spin-on filters: antidrainback, bypass and anti-syphon valves. Each plays an important role and work together to ensure efficient oil flow, filter functionality and engine health. Anti-drainback: Found on the ‘dirty side’ of the filter, this valve prevents oil from draining back into the engine when it is switched off. This valve is particularly important for applications where the filter is installed on the side or top of the engine. Without it, oil would simply flow out of the filter and leave the engine unprotected at startup. Bypass: Acting as a safety feature, the bypass valve comes into play when a filter becomes blocked – whether that’s due to dense oil from cold starts or a delayed filter change. When clogging occurs, pressure builds up on the dirty side of the filter. This prompts the bypass valve to open and unfiltered oil to flow, which is preferable to starving the engine of oil altogether. Anti-syphon: Located on the ‘clean side’ of the filter, this valve stops clean oil from flowing back into the engine when it is switched off. This valve also retains a small ‘reservoir’ of oil inside the filter, which means quicker lubrication after ignition. In addition to these three valves, Comline filters incorporate several other design features, including perforated centre tubes to help oil flow, robust housings and nitrile butadiene rubber (NBR) gaskets for flexibility and durability in harsh conditions. These characteristics mean Comline filtration meets OE-matching standards. However, the quality of a filter must be matched by the accuracy of the installation. Visit www.comline.uk.com for more information and to download our invaluable technical bulletins Everyone wants to get what they paid for. Aftermarket is independently verified by ABC, because we want our advertisers to know they’re getting the exposure they’ve been promised. 17,274 Average Circulation per issue, July 22 - June 23. ABC. See it. Believe it. Trust it. BE WISE WHEN YOU ADVERTISE www.abc.org.uk To advertise call Angela Lyus on 01732 370340 or email angela@aftermarket.co.uk 2024 – Copyright © UFI FILTERS spa
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