Crimp Connections (Unpressed Untight); Metal, Multi-Layer Composite And Pvc Pipes - Dräger P7-TDX Instruction Manual

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Instruction Manual Dräger P7-TDX

11.2.1 Crimp connections (unpressed untight)

Unpressed untight connections must be checked with a test

pressure of 0.6 MPa (6 bar) or according to manufacturer's

specifications prior to the actual tightness test. The test time

is 15 minutes.

Connect the pressure sensor to the pipeline to be tested and

start measurement using

(CONTINUE)

Connect the external pump to the pipeline using a valve and increase the pressure. If the

test pressure is reached, start the stabilization phase using

(CONTINUE)

The stabilization phase can be terminated manually and you

can switch to the measurement manually. The measurement

starts automatically at the end of the stabilization period.

The measurement can be terminated prematurely using

(CONTINUE)

The pressure at the beginning of the measurement, the cur-

rent pressure in the pipeline and the already elapsed time of the measurement period are

shown during the measurement.

At the end of the measurement or after premature termina-

tion, a switch to the result display occurs and the documenta-

tion menu can be accessed.

A stabilization period for temperature equalization amounting

to 10 min and a test time of 30 min must be complied with for

the tightness testing of drinking water installations using wa-

ter, which consist of metal, multi-layer composites and PVC

pipes. The test pressure is 1.1 MPa (11 bar). There can be

no drop in pressure during the test time and there can be no

recognizable leaks.

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