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The documentation for the control (operating manual, circuit diagram,
parameter list, communication guideline) is an integral part of the product
documentation.
Notice
The communication guideline offers detailed information about communica-
tion of the controller.
► The communication guideline can be made available before a planned
installation.
3.1.4.10 Fittings
The term 'fittings' generally designates a control element of the product. Among
other things, the term 'fittings' is also used for valves if they are used for the con-
trol and regulation of fluid flows in the pipes.
Furthermore, all kinds of installations in pipes, such as sight glasses, measure-
ment apertures, filters and similar, are also designated as fittings. Therefore, fit-
tings also include all kinds of valves, such as
• Stop valves
• Check valves
• Safety valves
• Throttle valves
Each fitting has its own field of use, according to the pressure or temperature in
the pipe, the size of the pipe, the sealing requirements for the fitting, the reduc-
tion and direction of the flow of liquid, as well as the medium itself.
The safety fittings are used to limit the pressure in systems which are under pres-
sure.
Each fitting is designed for the specific application. The fittings can be operated
manually or by motor, e.g. by gear motors, or pneumatic or hydraulic cylinders. In
reset fittings, the flow of fluid in the pipe causes automatic closing of the valve.
Depending on the model, different closing elements (e.g. valve discs, flaps,
washers) close the pipe connected to the fitting.
The documentation of the fittings (acceptance certificate) forms part of the
product documentation.
3.1.4.11 Pressure limiting safety devices
The pressure limiting safety devices of the product comply with EN 378-2.
The overflow valve to protect the compressor is designed according to EN 13136.
The blow-off pressure is set to the maximum permissible operating pressure of
the system.
The blow-off pipe has been dimensioned in accordance with EN 13136.
The electro-mechanical safety switching devices for pressure limiting comply with
EN12263 and are type-approved. The settings match the specifications of EN
378-2.
Description
Design
L_151511_2
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