What happens when modern equipment meets outdated infrastructure? For many plants, it means costly leaks, complicated workarounds, and frustrated employees. That was exactly the challenge facing a chemical production site in North Rhine-Westphalia until a collaboration between Covestro and Revoseal turned a long-standing problem into a breakthrough innovation.
The Hidden Challenge in Everyday Operations
In many older facilities, up to 80% of the pipe systems still rely on tongue-and-groove flanges. By contrast, modern inline hoses — used for flushing and emptying processes — are equipped with raised face flanges and PTFE inliners.
The result? A connection mismatch that seems small on paper but creates real headaches in daily operation. Raised face and tongue/groove flanges simply don’t fit together. For years, the workaround involved graphite layers combined with a corrugated ring. It was secure enough, but far from practical: multiple parts, inconsistent results, and plenty of extra effort for operators.
A Collaboration in Action
Hans-Georg Döring, Senior Project Manager at Covestro (formerly Bayer AG) with over 40 years of chemical industry experience, describes how the partnership with Revoseal made the difference:
“We had already worked with Revoseal on other projects. Through continuous and intensive dialogue, the issue of combining raised face hoses with tongue/groove pipelines became part of the discussion. Revoseal took the challenge seriously and searched intensively for a practical, manageable solution.”
The Breakthrough: A Dual-Use Gasket JP-T
