PRESSURE LEAK DETECTOR
DLR-GS ..
06/08/2020
- 20 -
5.6.2 Between leak detector and interstitial space, test valves
(1) Select and install suitable pipe.
(2) During installation of the tube/pipe, ensure again that the tubes
are protected against damage when the manhole chamber is en-
tered.
(3) Complete the relevant connection (according to the illustrations in
the following images)
(4) According to the specifications of the manufacturer of the pipe/in-
terstitial space
5.6.2.1 Flanged screw connections (for flanged pipes)
(1) Lubricate O-rings
(2) Insert spacer ring loosely into the screw socket
(3) Slide union nut and pressure ring over the pipe
(4) Hand-tighten union nut
(5) Tighten union nut until need for increased force is clearly noticeable
(6) Final assembly: Tighten by another ¼ turn
5.6.2.2 Clamping ring screw connection for metal and plastic pipes
(1) Insert support sleeve (only plastic pipe) into the pipe end
(2) Insert the pipe (with support sleeve) as far as it will go
(3) Tighten nut of screw connection by hand to the resistance; then
turn further 1¾ turns with the wrench
(4) Release nut
(5) Tighten nut by hand until stronger resistance
(6) Final assembly of the screw connection by tightening ¼ turn
5.6.2.3 Quick screw connections for PA tubing
(1) Cut PA tube to length at a right angle
(2) Unfasten union nut and slide over the end of the pipe
(3) Slide pipe onto nipple up to the beginning of the thread
(4) Hand-tighten union nut
(5) Wrench-tighten union nut until need for increased force is notice-
able (approx. 1 to 2 turns)
5.7 Electrical
Cables
Power connection:
- 2.5
mm
2
without ferrule
- 1.5
mm
2
with ferrule and plastic collar
Voltage-free contacts and external signal:
- 1.5
mm
2
without ferrule
- 0.75
mm
2
with ferrule and plastic collar
Mounting