Yale hydraulic manifolds, valves, and switches in the UK. These manifolds are used when different pressures must be maintained in each hydraulic line. Therefore, they allow the lifting of unequal loads. Manifolds are ready assembled and can be screwed directly to a hand pump or power pack. These sets are equipped with the corresponding number of shut-off valves plus pressure gauge sets which allow a permanent reading of each individual load. Depending on the location in a hydraulic circuit valves can have different functions. The model VSM-11 can be directly screwed into the oil port of a hydraulic cylinder and works at this location as a “hose break fuse“. The design of the VSM-21 is suitable for a combination with VHP directional valves. At this location the VSM-21 ensures that the pressure is held precisely and that pressure drops caused by operating the directional valve are avoided.