| The connection lines come from the distribution lines. They supply consumer devices with compressed air. Since the devices operate with different pressures it is normally necessary to install a service unit with a pressure regulator in front of the device. The network pressure is reduced to the working pressure of the device by the regulator. Service units comprising filters, separators, regulators and oilers are not needed if the compressed air is pre-treated.
The pressure loss Dp in the connection lines should be no higher than 0,03 bar.
Note
For industrial applications the recommended pipe size is DN 25 ( 1" ). This size has next to no cost disadvantages compared with smaller sizes and nearly always guarantees a reliable supply of compressed air. Consumer devices requiring up to 1800 l/min can be supplied through line lengths of up to 10 m with hardly any pressure loss. |