In industrial applications with abrasive media such as concrete or sand, conventional pressure sensors quickly reach their limits. Vulkollan® membranes offer a proven protection solution to significantly prolong the lifespan of the sensors—without compromises on durability.
Vulkollan® is a powerful polyurethane elastomer based on Desmodur® 15 (NDI). It features a unique combination of mechanical and chemical properties and is used wherever materials must withstand high loads.
A leading company in specialized foundation engineering needed a solution for pressure monitoring inside a pipe through which concrete is pumped into a drilled hole. Since a conventional stainless steel sensor in this abrasive medium would only last a very short time, a flange sensor with an additional Vulkollan® membrane was used.
Result:
Photo of a sensor with Vulkollan® membrane:
A manufacturer of ship control systems sought a robust solution for measuring water levels in trim tanks contaminated with seawater, sand, stones, and shells. By applying a thin Vulkollan® foil on the sensor membrane, the sensor could be protected from mechanical wear over the long term.
Vulkollan® membranes provide a robust, proven solution to protect pressure sensors reliably from abrasive media. They significantly extend the lifespan of measurement devices, enabling more economical operation under challenging conditions.
However, potential limitations such as temperature boundaries or accuracy losses should be considered early on. An individual consultation with experienced sensor specialists is crucial to find the optimal solution for the respective application area.