The Sihi LEH 3310 vacuum pump is a common liquid ring vacuum pump found in chemical processing plants all around the world. Sihi liquid ring pumps have been designed to provide superior reliability and performance in harsh applications such as chemical processing, geothermal power generation or anywhere reliable compression of corrosive gases is needed.
Our customer, Columbia Chemical, uses this Sihi LEH 3310 in production of Vinyl Chlorine Monomer (VCM), and this piece of equipment is vital to production. The plant needed to find a longer term solution. The previous technology used were lip seals, which were a positive seal they liked, but Columbia Chemical needed a better and long term solution. Columbia Chemical found Isomag bearing isolators which complied with the positive seal requirement, but provided them with a seal that possessed a long life cycle. The seal has been running since 2015 and is still going today, with no leaks, while protecting the bearings.
A brochure for Isomag bearing isolators can be found here. Also as a reminder, Isomag bearing isolators can be custom made to fit your machine. Contact our customer service team and we will help you find the ideal solution for your needs.