Glossary · Topic
Hydraulics, Pneumatics & Sealing
32 terms from the field of Hydraulics, Pneumatics & Sealing.
A
- Air preparation unit (FRL)An air preparation unit treats compressed air upstream of consumers, usually by filtering, regulating and, if required, lubricating it, protecting …
- Axial piston pumpAn axial piston pump is a positive displacement pump in which pistons arranged parallel to the drive shaft deliver hydraulic oil at high pressure.
B
C
- Centrifugal pumpA centrifugal pump is a rotodynamic machine that accelerates liquids with a rotating impeller, thereby generating pressure and flow.
- Check valve (non-return valve)A check valve is a self-acting valve that lets a medium pass in one direction only and prevents backflow by closing.
- Control valveA control valve is a final control element that continuously influences flow, pressure or temperature in a plant by means of a variable opening area.
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F
G
H
- Hydraulic cylinderA hydraulic cylinder is an actuator that converts hydraulic pressure into linear motion with high force, for example in presses or rolling mills.
- Hydraulic filterA hydraulic filter retains particles from the hydraulic fluid, protecting pumps, valves and cylinders against wear and malfunctions.
- Hydraulic hoseA hydraulic hose is a flexible pressure line consisting of inner tube, reinforcement and cover that carries hydraulic fluid between moving components.
- Hydraulic motorA hydraulic motor converts the pressure and flow of a hydraulic fluid into a rotary motion with high torque, often at low speed.
- Hydraulic power unitA hydraulic power unit is a compact assembly of tank, pump, drive motor and valves that supplies a machine with pressurised hydraulic oil.
- Hydraulic pumpA hydraulic pump converts mechanical drive energy into hydraulic energy by delivering pressurised fluid into a hydraulic circuit.
M
- Mechanical sealA mechanical seal seals rotating shafts, for example in pumps and agitators, by means of two sealing faces that slide axially against each other.
- Metering pumpA metering pump delivers a precisely adjustable volume of liquid per stroke or unit of time and is used to add chemicals and additives to processes …
O
P
- Pneumatic cylinderA pneumatic cylinder converts the energy of compressed air into linear motion and serves as an actuator in automation and mechanical engineering.
- Pressure regulatorA pressure regulator, also called a pressure reducing valve, lowers a fluctuating inlet pressure to an adjustable outlet pressure that is kept as …
- Pressure relief valveA pressure relief valve opens as soon as the system pressure reaches a set value, thereby protecting pumps, lines and consumers against overload.
- Progressive cavity pumpA progressive cavity pump is a positive displacement pump in which a helical rotor turning in an elastic stator forms cavities that travel along the …
- Proportional valveA proportional valve adjusts pressure, flow or direction continuously and in proportion to an electrical setpoint, usually by means of a proportional …
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S
V
- Vacuum pumpA vacuum pump draws gases or vapours out of an enclosed space and creates a pressure there below atmospheric pressure.
- Valve actuatorA valve actuator is an electric, pneumatic or hydraulic drive that automatically operates valves such as butterfly valves, ball valves or globe …
- Valve terminal (valve manifold)A valve terminal combines several pneumatic valves on a common base plate with a central compressed air supply and grouped electrical control.
- Vane pumpA vane pump is a positive displacement pump in which radially movable vanes in an eccentric cam ring form pumping chambers of varying size.
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