Rexroth is a drive & control company offering drive and control technologies, both specialised and integrated. Rexroth is a wholly-owned subsidiary of robert bosch gmbh. Mobile controls are control and safety systems for drive and working hydraulics of mobile equipment. Rexroth offers the insert type cartridge valves. The vma valves are insert type cartridge valves. They combine in one small insert cartridge the typical function of a direct acting relief valve and the anti-cavitation function through the check valve. Various configurations in order to get different functions are available in the vma family: