Directional valve
Fluid valve with binary behaviour, i.e. it moves from one switching position to another (e.g. Open – Closed) without adopting an intermediate position.
Predetermined breaking part (predetermined breaking point)
intention of breaking in the case of overloading in order to protect the rest of the machine. At the same time, it is to be arranged such that it is easy to replace in the case of a break. Example: Breaking pot [...] presses. In hydraulics, the pressure-limiting valve performs the task of a predetermined breaking part without actually breaking.
Point control
Allows moving to a certain point on the level, without needing to define a functional relationship along the movement path in the individual path axes. The movements may be performed simultaneously or
Element for pressure filters
differential pressure that is at least as large as the nominal pressure of the system, without damage occurring to its structure or the filter material.
Gap bridging
Ability of elastomer seals to bridge a gap with their spine, without being squeezed in ( gap extrusion ). The gap bridging depends on the type and hardness of the material.
Idle circulation valve
Valve with the task of switching circulating the pump flow rate back to the container without pressure if it is not needed. In order to keep power losses low in doing so, this takes place on the shortest
Filter with bypass valve
The bypass valve is intended to protect the filter element against destruction before its strength limit is reached, as otherwise the contamination collected will be returned to the circuit. A filter with [...] with bypass should never be used without an effective visual clogging display.
HFC pressure fluids
ratio of around 60:40. HFC pressure fluids have a viscosity of 30 to 45 mm2/s at 50°C and may be used instead of mineral oils without changing devices. Sole restriction: roller bearings have a shorter [...] shorter lifetime given the water content of HFC pressure fluids and the working temperature is limited to a range between –20°C and +60°C. The water content must be monitored.
Thermodynamic measuring
Process to monitor the operating state of a hydraulic system or individual devices with the aid of temperature and pressure measurements . It uses the hydraulic fluid to carry the information and is based [...] measurements can be used to calculate not only the total efficiency of hydraulic systems, but also offer the option of continuous monitoring, fault diagnostics and function controls without removing components
Programmable control
entire contents of which can be changed, even only slightly, without mechanical intervention in the control device. Mechanical intervention refers to the removal of the memory from the control device for the