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Excellent teamwork between SKW, its service partner Räcklebe & Totz, the safety valve manufacturer LESER and with the support of the licensor Stamicarbon, has resulted an Innovative Safety Solution for Overpressure Protection in the Urea Synthesis section: Safety Valves with Supplementary Loading Systems (SLS) or also defined as Controlled Safety Pressure Relief Systems (CSPRS) according to ISO 4126-5. Pre-conditions are the use of the material SAFUREX® and special proprietary design and construction details.
The following benefits have been achieved: Increased safety & reliability, increased operating pressure closer to the set pressure of the synthesis safety valve, for the design of new urea plants, the design pressure of the High Pressure equipment items can be reduced leading to lower investment figures and longer inspection intervals.