Page 6 of 7
of the Approval Certificate
dated
February 1, 2006
Order no.
0111 BM 21610
8 Assessment
The leak detector of type DLR-... has been approved as suitable as part of a leak
indication device operating on the basis of overpressure, and it complies with the
requirements of EN 13160 and the approval principles for leak detection devices for
pipes and TRbF 502, provided the following conditions are met:
1. The leak detector variants, comprising the signal part and a pressure measuring
device, are to be manufactured, adjusted and operated in accordance with the
technical description dated 26.02.2002, or for the variant of type DLR-P.. in
accordance with the technical description dated 21.12.2005.
2.
The relevant detector type must only be used in the interstitial spaces specified
in the "Area of use" section in the technical description. The alarm switching
pressure of the leak detector should be adjusted in accordance with the technical
descriptions, whereby the value must be at least 1 bar above the operating
pressure of the pipe to be monitored.
3.
The information provided by the manufacturer in the operating instructions must
be observed in relation to establishing and maintaining the operating pressure of
the leak detector. Every leak detector should be operated in such a way that the
maximum permitted operating pressure of the interstitial space in the pipe and the
components of the leak detector is not exceeded. In general, the only pressure
reducers which should be used are those where the maximum adjustment range
on the pressure reduction valve does not exceed the test pressure of the
interstitial space. Otherwise, overpressure protection devices should be provided
which prevent the maximum permitted operating pressure of the interstitial space
from being exceeded.
4.
If the leak detector is connected to interstitial spaces of overground pipes or pipes
with flammable liquids (flash point < 55 °C), then fixed connecting lines should be
provided which comply at least with pressure level PN 10. Before being taken into
operation, the connecting pipes should be subjected to a pressure test at a
pressure of at least 1.1x the operating pressure of the leak detector (no less than
5 bar).
5. The supply pressure for the pressure accumulator indicated in the technical
description must be met, as otherwise the feed quantity of the leak detection
medium will deviate from the value permitted according to the approval principles.
6. Every leak detector is to be permanently and legibly marked with at least the
following information:
Manufacturer’s name or manufacturer’s symbol/logo,
Содержание DLR-GS PMN Series
Страница 17: ...88 88 57 57 13 04 2007 M1 075 000 45 71 69 01 09 06 2 14 05 77 25 19 bar 0 16 10 bar 0 100 200 300 02 99...
Страница 18: ...99 99 57 57 88 88 88 76 30 02 13 04 2007 M2 075 000 14 05 77 25 19 bar 0 16 10 bar 0 100 200 300 06 2...
Страница 19: ......
Страница 20: ......
Страница 24: ...28 06 2005 Drilling Dimensions 200 300 260 220 T 140 8...
