ROTHENBERGER ROTEST GW 150/4 - Manual (Page 14)

12 ENGLISH
5 Operating and performing 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 bearing 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:

Close all cut-off valves on your ROTEST GW 150/4.
 Insert connecting hose (6) to connecting valve A. An auditable sound is heard when hose
and valve nipple are properly locked.
 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.
 Insert the open end of the connecting hose (6) to the valve on the test plug.
 Use the hand pump to load a pressure pursuant to 1* to the pipe system.
 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!
 Carry out the test over a period prescribed by 1*. Over this period the pressure indicated must
not drop.
5.2 Leak test of gas fittings pursuant to 1*
For propane liquid gas fittings and low-pressure liquid 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:

Close all cut-off valves on your ROTEST GW 150/4.
 Insert connecting hose (6) to connecting valve B. An auditable sound is heard when hose
and valve nipple are properly locked.
 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
 Insert the open end of the connecting hose (6) to the valve on the test plug.
1* Statutory regulations in the country of use or the respective manufacturer and facility instructions and guidelines