Solutions for advanced hydraulic systems Imprint Applications Products News & Downloads Services Contact Home  Enhancement of Safety  Main Functions  Auxilliary Functions  Hydraulic Attachments  Control and secure Booms  Control and secure Winches  Control and secure Drives  Secure Leakage free  Proportional Directional Control  Piloting Valves  Electrical Control  Single-acting additional Section  Double-acting additional Section  Additional Section 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