ROTHENBERGER ROTEST GW 150/4 - Manual (Page 16)

14 ENGLISH
5.5 Principle test of drinking water systems for domestic connections pursuant to 1*
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.
 Assemble tube element system as follows:
-
while carefully turning insert tube element (8) with scale 41 – 75 mbar into fixed tube
element (7).
- while carefully turning insert tube element (9) with scale 81 – 115 mbar into tube
element (8).
 Open connecting valves B, C and D.
 Use bellow (12) to load a pressure pursuant to 1* into the test system.
 Close connecting valve C to avoid a loss in pressure.
 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
1) Statutory regulations in the country of use or the respective manufacturer and facility instructions and guidelines
6 Test protocol
The responsible technician must write up a test protocol after completing leakage tests.
7 Disassembly
After completing leakage tests disconnect the connecting hose (6) and open connecting valve D
so that the water column can flow back into the water tank (2).
Disconnect all tube elements and place them back into the carrying case.
Close all valves and fold down hand pump.
8 Maintenance and care
Use silicon lubricant to daub coupling O rings in the tube elements, couplings and supply-end
cap!
Apply lubricant to the inner surface of all tube expansions on the couplings!
Store carrying case in a clean and dry environment to avoid corrosion of case and instrument
components! Any corrosion on the valves impedes valve function!
Handle your ROTEST GW 150/4 leakage test system carefully!
9 Accessories
The relevant accessories and an order form can be found from Page 114 onwards.
10 Disposal
Components of the unit are recyclable material and should be put to recycling.
For this purpose registered and certified recycling companies are available. For an environmental
friendly disposal of the non-recyclable parts (e.g. electronic waste) please contact your local waste
disposal authority.