PRESSURE LEAK DETECTOR DLR-P ..
- 21 -
(2) Fastening with the provided installation material.
TF 180: Vertical with suction opening pointing down
TF 200, 300, 400, 600, 1200: Vertical with suction opening point-
ing up, beneath the leak detector if possible
(3) Connect the dry filter and the aspiration port of the leak detector
through a PVC hose (or comparable).
5.4
Pneumatic Connection Lines, Requirements
o
Pressure resistance of the metal (generally Cu) or plastic pipes
must at least correspond with the test pressure in the interstitial
space. Also applies to fittings and screwed connections. Note
temperature range, especially when using plastic.
o
Inside clearance of at least 6 mm for air as leak detection medium
o
50 m should not be exceeded, but if this happens: Install pipe with
greater inside clearance using transition pieces.
o
The full cross section must be maintained. Do not push in or bend
5
.
o
Install metal or plastic pipes that are installed underground or
overground exposed on the surface in protective pipes.
o
Seal the protective pipe gas-tight and protect from moisture.
o
Avoid build-up of electrostatic charges (e.g. during pulling of lines).
5.5
Completing Pneumatic Connections
5.5.1 Mounting the connection to the interstitial space or test valves
(1)
Generally according to the pipe/interstitial space manufacturer’s
specifications.
(2) If Schrader valves are used, please proceed as follows:
- Unscrew protective cap
- Retighten lock nut
- Unscrew valve insert and stick next to the connection with ad-
hesive tape.
- Screw connection to the interstitial
space or test valve and fas-
ten finger-tight.
- If necessary, further tighten with suitable pliers.
5.5.2 Between leak detector and interstitial space
(1) Select and install suitable pipe.
(2) During installation of the tube/pipe, ensure that the tubes are pro-
tected against damage when the manhole chamber is entered.
(3) Provide grounding/equipotential bonding of metal parts in non-
conductive connection lines.
(4) Complete the relevant connection (according to the illustrations in
the following images)
5
If necessary, install commercial fittings for plastic pipes (specified bending radii)
Installation