Thus, for example, approx. 130,000 screws varying between sizes M5 and M130 had to be loosened and checked at pipings, instrumentation and process control devices, valves, fittings, tanks and containers, heat exchangers during the routine shutdown of the OMV refinery in Schwechat, Vienna in Autumn 2005. To enable time and cost savings in the process "smooth" assembly of the screw threaded connections has to be ensured. For the screw paste this means that a constant coefficient of sliding friction has to be ensured in order to ensure the optimal ratio of tightening torque and attainable pre-tension even at the most varied screw dimensions and materials. In the case of screws made of high-alloy steels, cold welding must furthermore be avoided reliably.
Product details: OKS 217