Solutions for advanced hydraulic systems Hydraulic – Service for Construction Machines               (for Germany only) Installation of (WESSEL) Valves Fault-diagnosis / Repair Retooling Functional upgrading Service Hotline 0180 5 638 678 € 0,14 / Min from german landline. From german Mobile net max. 0,42 € /Min Monday thru Friday from 08:00 o´clock to 18:00 o´clock Imprint Applications Products News & Downloads Services Contact Home The WESSEL-HYDRAULIK Serviceteam does not only support you in validation of  new valve-technique but also offers a comprehensive service for fault-diagnosis,  retooling and functional upgrading of your construction machine.  As a matter of course we also install our valves in your machine and take them  into operation. WESSEL Tool Control plus Upgrading of construction machines equiped with Quick-Coupler-Systems. Proportional control of up to 16 different attachments Load Holding Valves The key for a safe machine: Requirements for Load Holding Valves. . . . Loweríng Brake Valves Safe valve technology for mobile construction machines Main Valve Proportional Control Valve for mobile applications, LS- valve in sectional construction With effect form October 2011 our company is certified by german customs as AEO-F