Strength Tests For Lpg Systems According To Trf; Testing Drinking Water Installations - Dräger P7-TDX Instruction Manual

Instruction Manual Dräger P7-TDX

10.5 Strength tests for LPG systems according to TRF

Connect the pipeline to be tested with the pressure inlet of
the measuring device marked with "bar" using a pressure
hose with a pneumatic quick coupling NW 5 and connect the
external pump to the line via a valve.
Increase the pressure to somewhat more than 0.1 MPa
(1 bar) and switch to the stabilization phase using
( ). At least 10 minutes or for partially underground
CONTINUE
pipelines, 30 minutes, are required for the duration of the
stabilization phase for temperature equalization.
A measurement period of 10 minutes is required for the measurement.
The remaining sequence of the strength test (stress test) is described in Chapter 13.1. on
page 33.

11. Testing drinking water installations

According to DIN EN 806-4, the tests required for drinking
water installations can either be conducted using water or
with air or inert gas.
Tests for drinking water installations with water can only
be conducted with an optional external high pressure
sensor. If tests are conducted using the internal pressure
sensor, the device can be damaged!
For hygienic reasons, a test using water should not be conducted until immediately after
commissioning the drinking water installation.
For this, please also refer to the VDI (Association of German Engineers) Guideline VDI
6023 "Hygiene in Drinking Water Installations" and the ZVSHK (The German Sanitation,
Heating and Air Conditioning Association) data sheet "Tightness Testing of Drinking Water
Installations".
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