MWH Helps Reduce Lifecycle Costs

Märkisches Werk Halver (MWH), based in Halver, Germany, is a well-regarded supplier of quality cylinder head components to nearly all manufacturers of low, medium and high-speed, two and four stroke engines. MWH's experience extends from the manufacture of high quality cylinder head components to in-depth knowledge of the relationships inside the valve units, and the interplay of valve cages, stem guides, seat rings and valves within the system. In a program dubbed Lifecycle Management by MWH, the company throws its years of practical experience in production, revision and optimization of these engine components into good advice and support to customers in the design of cylinder heads with all components, as well as in the management of preventative maintenance and the re-equipping of fleets. The company also uses real world test benches with valuable customers as a means to improve its products and services overall. In one case, the company worked with an operator of a fleet with 190 cylinder heads to continuously monitor and optimize cylinder head units. The entire cylinder head units were dismantled every 16,000 hours, and to date more than 80 percent of the valve cones have reached a service life of 32,000 hours, and no measurable wear has been detected on the valve rotation devices. Thus the engines have effectively been engineered to run more economically with a reduction in emissions.In another case, an operator of a two stroke engine had problems with an older-type engine. In this case, MWH developed a Nimonic valve in optimized geometry and design (together with a new seat ring) which, although more expensive in production, was more economical in terms of increased service life. MWH also optimized and adapted the onboard tools and developed an overhaul concept. The service lives were lengthened by more than 400 percent.