Rothenberger ROTEST GW 150/4, Инструкция по эксплуатации, Страница: 17 / 164

ENGLISH 15
Î Use bellow (12) to load a pressure of 110 or 150 mbar into the test system (zero level in the
upper tube element).
Î Close
connecting valve C
to avoid a loss in pressure.
Î Wait 10 minutes for loaded air and water temperatures to equalize.
Prolong period of temperature equalization if temperatures fluctuate greatly!
Î Carry out test over a period of ten minutes. The indicated pressure should not drop over a 10-
minute period.
5 Operating and performing leakage tests with the ROTEST GW 150/4
5.1 Bearing test of gas fittings pursuant to 1*
The following aspects must be taken into careful consideration:
•
All bearing tests are to be performed on newly fitted gas pipe systems without fixtures.
• All pipe openings must be sealed off with plugs, caps, blanks or blind flanges for the duration
of the test.
•
The system must be isolated from all other gas carrying systems.
• Carry out all initial tests before the pipes are plastered or covered and the joints are coated or
jacketed.
•
If the test is to be carried out at the gas meter end of the pipe system, use the threaded
supply-end cap
(22) to seal off the pipe system.
Complete test as follows:
Î Close all cut-off valves on your ROTEST GW 150/4.
Î Insert connecting hose
(6)
to
connecting valve A
. An auditable sound is heard when hose
and valve nipple are properly locked.
Î Insert an appropriate test plug into the open end of the pipe and seal off end by turning the
wing nut until the pipe is sealed tight.
Î
Insert the open end of the connecting hose (6) to the valve on the test plug.
Î Use the hand pump to load a pressure pursuant to 1* to the pipe system.
Î Wait 10 minutes for loaded air and water temperatures to equalize.
Prolong 10-minute period of temperature equalization if temperatures
fluctuate greatly. The equalization period can last up to two hours!
Î
Carry out the test over a period prescribed by 1* . Over this period the pressure indicated must
not drop.
5.1.1 Leak test of gas fittings pursuant to 1*
The following aspects must be taken into careful consideration:
•
The leak test gas fitting includes all fixtures, but not gas appliances as well as the associated
control and safety devices.
• The system must be isolated from all other gas carrying systems.
• Carry out all leak tests before the pipes are plastered or covered and the joints are coated or
jacketed.
• The gas meter may be included in leak tests.
• If the test is to be carried out at the gas meter end of the pipe system, use the threaded
supply-end cap
(22) to seal off the pipe system.
Complete test as follows:
Î Close all cut-off valves on your ROTEST GW 150/4.
Î Insert connecting hose (6) to connecting valve B . An auditable sound is heard when hose
and valve nipple are properly locked .
Î Insert an appropriate test plug into the open end of the pipe and seal off end by turning the
wing nut until the pipe is sealed tight
1* Statutory regulations in the country of use or the respective manufacturer and facility instructions and guidelines