Stretch-loading of seals
Stress, which occurs where the moved surface runs together with the sealing lip i.e. the frictional force on the bottom side of the seal acts opposite to the compressive force on the seal (Figure Z 6)
Torque measurement
precisely, however, the measured variable must be tapped via sliding contacts or wirelessly. Conversely, with hydraulic torque measurement the torque is converted directly into pressure that can be read on a
On-off control
reached, the compressor switches to idling mode. This is done by providing relief at the pressure side with the suction valve closed (suction throttle control) or lifting the suction valve (relief control)
Error tolerance range
6) . The description of the accuracy limits by means of an error tolerance range provides the user with an overview of the limits of the measuring device.
Digital
Means working "with numbers". This signifies the representation of variables using an agreed set of characters that are assigned to the variable to be represented by a code . If the variable to be represented
Screen filter
Filter with screen fabric as an active filter element. Screen filters are made for a filtration grade up to a maximum of 25 μm, as the ratio of filter surface to free pore space is too unfavourable below
Rotary pipe joint
must be routed from a stationary part of a machine to a moving (oscillating) part of a machine. Along with oscillating movements, rotary pipe joints can in general also undertake relatively slow rotary movements
Laminar flow
direction of the flow. As a result of viscosity, the local velocity across the cross section is associated with a kind of parabolic distribution
Ramp generator
ramps. Its effect is based on the fact that an electrical condenser (C) is charged (and discharged) with a delay ( Figure R 10 ), resulting in a general voltage increase. The charging speed – and therefore
Spring assisted sealing elements
sealing elements are used for requirements that cannot be addressed using conventional elastomers. With fluoroplastics they can withstand temperatures from –200°C to +250°C and are resistant to aggressive