Elastomer/energised plastic faced seal
Seal combination comprising a ring made of wear-resistance material (mostly filled PTFE) with a smooth or recessed edge sliding surface that is energised by an O-ring behind it (Figure G 27) . The som
Sliding friction
Friction that is produced when two surfaces rub against each other. Friction can vary very significantly in fluid technology, depending on Which seal material is used, Which seal shape is used, The ma
Frequency spectrum
Reflects the frequency distribution of noise including its intensity that together with the change over time describes a noise signal.
Flange connection
The flange connection is a friction-locked, separable pipe connection comprising two flange halves and a seal. The tightening torque of the fastening screws generates the necessary sealing force. Flan
Fieldbus
Technical system comprising hardware and software that makes possible communication and the exchange of data between the devices connected to it (Figure F 8) . The devices are primarily sensors, actua
Single edge control
Control of the speed of a cylinder via control edges. Every displacement chamber has two flow resistances. With the single edge control one resistance can change, the second resistance is however cons
Piston for rapid traverse
To obtain a higher rapid forward movement speed v E with the pump designed for the operating speed, a piston with the area is arrange in the main piston and switched such that pressure is only applied
Pressure
The pressure p is the quotient of the normal force F that acts on a surface, and the area of this surface A ( DIN 24 312 ): The derived unit for pressure in the SI system is the pascal: 1 Pa = 1 N/m2.
Valve-controlled pumps
Piston pumps, in which the flow rate is pressure-controlled by suction and pressure valves . Here the suction valve opens when facing a weak spring force as soon as the returning piston creates negati