Adhesive joint of pipes
Adhesives are increasingly being used for permanent installations of plastic pipes, with one end of the pipe being widened into a sleeve to ensure there is a long enough area to accommodate the adhesive
ISO
standards institutes whose technical committee TC 131 works on all standardisation tasks associated with fluid technology. The resulting ISO standards are either adopted directly (DIN ISO ...) or incorporated
Load flow Q L
Flow through a valve as determined by a given load and a specific signal. With continuously adjustable valves , the load flow is described in terms of the flow rate load function Q L=f(y,pL).
Impeller
Hydraulic pump which operates in accordance with the hydrodynamic principle (centrifugal pump) and is used as a filling pump for hydrostatic pumps, particularly variable pumps (Figure I 3) . Advantage:
Opening/closing pressure difference
Hysteresis for pressure valves resulting from springs, the mechanical friction associated with the piston and flow forces. It ensures the closing pressure for a pressure valve is always lower than the
Nominal width
previously used instead of " nominal size " to indicate a device size. 2. Standardised numerical variables with which the inside diameter of pipes is compared. The nominal width for pipes is defined in DIN 2402
Displacement volume
output volume or flow rate Of a cylinder Geometric volume based on piston area and piston stroke. With differential pistons, the volume at the rear would have to be added.
Program module
which can be delimited in terms of its allotted task or structure. A control : Consequence associated with control instructions for a self-contained application-based function (as per DIN 19 237).
Load stiffness
an external load. Load stiffness for linear drives is mostly stated in N / μm. It can be compared with spring stiffness.
Continuously adjustable flow valve
Valve with a proportional connection between the input signal and the flow rate in a working line (consumer port) and in one effective direction. This includes construction designs of proportional flow