Don't miss the article Pressure-released wiper prevents debris from reaching critical components, published by Sealing & Contamination Control TIPS.
Body ClearSeal™ PRW is made from rubbers, thermoplastic elastomer (TPU) or thermoplastic. The body has holes, machined to allow the fluids to pass through.
The lip geometry functions as a scraper/wiper. Filter fabric prevents debris from passing through the holes in the body. V-spring energises the seal and secures the filter in place.
Contaminated pressure media causes damage that leads to breakdown, leaks and shutdown.
We have conducted an internal test, aiming to achieve a rapid breakdown in the unprotected cylinder, thereby proving the effect of ClearSeal™ PRW. Equal amount of contamination was added to both the cylinders before start of the test. All working parameters were maintained the same on both cylinders.
Tests was terminated when the cylinder without the ClearSeal™ PRW started to leak. The seals and the hardware remained protected on cylinder fitted with ClearSeal™ PRW.
During a FMECA performed by DNV-GL (Report No.: 2018-3126, Rev. 0), it has been observed that there are no downsides in using the ClearSeal™ system in critical hydraulic applications.