Compressors / compressed air - Aircraft
Compressors / compressed air - Aircraft
Compressors / compressed air - Aircraft
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Compressed <strong>air</strong> line systems - Ø 15-28 mm<br />
Assembly instructions for plastic tube lines<br />
In order to guarantee a safe and this way perfect installation,<br />
please note the following points:<br />
· The pipe clamps need to be mounted in a way that the pipe has<br />
enough clearance to shift it to and fro<br />
· There must be no burr at the ends of the tubes in order to avoid<br />
damages at the O-rings of the connector<br />
· Provide the tubes with a chamfer in order to facilitate the assembly<br />
· Cut the tubes with pipe shears RS 28 (Item No 215 1528) in order to<br />
achieve an optimum separation (90°)<br />
· In order to avoid loss of pressure in the system, make sure to plug the<br />
tubes always up to the limit stop into the connector<br />
(also see marking on the connector)<br />
· For the installation of the <strong>compressed</strong> <strong>air</strong> piping system around a pillar,<br />
please observe the longitudinal extension of the tubes and connectors<br />
(recommended distance from the wall about 30 mm)<br />
Correction factors length extension<br />
Correction factors for the length extension of plastic tubes:<br />
Tube (smooth) Factor 1.5<br />
Tube (middle) Factor 1.3<br />
Tube (hard) Factor 1.0<br />
Exemplary calculation:<br />
The <strong>compressed</strong> <strong>air</strong> pipe (hard tube) with a length of 150 m which is laid in<br />
a hall where the environmental temperature is between +15 to +40°C<br />
( T is 25°C) will extend by: l = 1.0 x 10 -4 /°C x 150 x 25°C<br />
l = 0.375 m<br />
Easily extending an<br />
existing tube system<br />
The plug connectors and tubes can be used to<br />
install a self-contained system<br />
or extend or modify an existing tube system<br />
(refer to the right).<br />
Description of the water separator system<br />
1. 2.<br />
water separator for 28 mm<br />
<strong>compressed</strong> <strong>air</strong> line systems<br />
You can construct a water separator<br />
for 28 mm <strong>compressed</strong> <strong>air</strong> line<br />
systems with a standard T-piece, item<br />
No. 215 2828 and the brass insert,<br />
item No. 215 2829.<br />
1. Insert the short part of the insert, item No 215 2829<br />
into the plastic tube or into the copper tube.<br />
2. Plug the tube with the insert up to the limit stop into the T-piece.<br />
By a 1/4 turn of the screw cap, the holding system is double<br />
protected. This way, the penetration of water into the stub is<br />
prevented.<br />
· For the installation of several vertical tubes we recommend to mount<br />
first the pipe clamps of the horizontal piping which put the system under<br />
pressure and in the second step the vertical clamps and connectors.<br />
This way you can avoid that the vertical tubes are oblique after the<br />
installation.<br />
· If there is no refrigeration dryer in the installation of the <strong>compressed</strong><br />
<strong>air</strong> piping system, it is recommended to use our T-connectors with<br />
integrated water separator (Item No. 215 2222). This way the condensed<br />
water can be collected at a certain point.<br />
· For the installation of the <strong>compressed</strong> <strong>air</strong> piping system a correct heat<br />
extension calculation needs to be performed first in order to avoid the<br />
bending of tubes and connections.<br />
The specific coefficient for the length extension (lK) for polyamide =<br />
10 -4 /C° corresponds to 0.1 mm/°C.<br />
The formula to calculate the length extension:<br />
l = factor x lK (10 -4 /C°) x length of the tube (l) x temperature ( T)<br />
Using a straight screw-in connector<br />
Using a screw coupling<br />
Using a screw-in connecting piece<br />
Wet <strong>air</strong><br />
Water<br />
separator<br />
Dry<br />
<strong>air</strong><br />
By the water separator-<br />
T-connector the so-called "goose<br />
necks“ do not apply since, because<br />
of the fully developed technique, a<br />
penetration of water to the branch<br />
lines is prevented.<br />
When installing this connector,<br />
make sure that a horizontal tying<br />
of the connector is guaranteed. The<br />
connector is marked accordingly, so<br />
that a wrong assembly is prevented.<br />
118 Built according to CE directives