General Requirements; Important Information On Welding Parameters; Care And Maintenance - Rothenberger ROWELD P 160 B Bedienungsanleitung

3.3

General requirements

As weather and ambient conditions can seriously effect welding procedures and joints, it is
essential to duly observe national welding guidelines and ordinances, e. g. DVS Guideline 2207,
Sections 1, 11 and 15.
(Welding requires continuous and due supervision and monitoring!)
3.4

Important information on welding parameters

For welding parameters such as temperature, pressure and time, consult your national welding
guidelines and ordinances, e. g. DVS Guideline 2207, Sections 1, 11 and 15.
Ordering: DVS Media GmbH, Aachener Str. 172, 40223 Düsseldorf
Postfach 10 19 65, 40010 Düsseldorf, Tel.: +49 (0) 211 / 15 91 – 0
Email: media@dvs-hg.de internet: www.dvs-media.info
In the event of doubt, consult the pipe manufacturer for material-specific welding parameters.
The welding parameters specified in the welding tables are strictly reference values.
ROTHENBERGER cannot assume any liability for their accuracy or completeness!
The compensation and joint pressure values specified in the welding tables were calculated using
the following formula:
pressure P [bar] = welding surface A [mm²] x welding factor SF [N/mm²]
Welding factors (SF): PE = 0,15 N/mm², PP = 0,10 N/mm², PVDF = 0,10 N/mm²
(ROWELD P 160/5 B: the total cylinder surface is 3.53 cm²)
(ROWELD P 200 B: the total cylinder surface is 3.53 cm²)
(ROWELD P 250/8 B: the total cylinder surface is 6.26 cm²)
(ROWELD P 355/12 B: the total cylinder surface is 6.26 cm²)
(ROWELD P 500/18 B and P 630/24 B: the total cylinder surface is 14.13 cm²)
(ROWELD P 630/24 B Plus: the total cylinder surface is 22.38 cm²)
4

Care and maintenance

To ensure that the welding machine functions properly, observe the following maintenance
recommendations:
• The guide rods must be kept free of dirt and grime. Replace guide rods whenever surface
shows signs of erosion or damage, otherwise hydraulic system may loose pressure.
• Trimmer unit, heating plate, hydraulic unit may only be supplied with the voltage specified on
the type plates.
• To achieve perfect welding results, it is essential to keep the heating plate clean. If the surface
is damaged or shows signs of erosion, the surface must be recoated or replaced. Material
residues on the heating plate surface reduces the non-sticking properties of the coating.
Remove all residues with non-linting paper and alcohol (heating plate must be cool!).
• Before every start-up, check the oil level of the hydraulic unit (oil level should lie between full
and empty marks). Replenish hydraulic oil whenever necessary (HLP – 46, no.: 53649).
• Change hydraulic oil (HLP – 46, no.: 53649) every six months.
• To avoid malfunctions, regularly check the hydraulic unit for leaks, proper fit of connections
as well as the power cable for signs of damage or wear.
• Protect the fast-on couplings on both the hydraulic unit as well as the hydraulic hoses from
dirt and grime. Remove any dirt or foreign objects prior to connecting.
• The trimmer unit is equipped with two bi-directional blades. Rotate or replace blades
whenever trimming performance is no longer up to expectations.
• Always ensure that the pipe and workpiece ends, in particular the butt surfaces are clean.
Dirt or other foreign substances will shorten the serviceable life of the blades considerably
22
surface of cylinder Az [cm²] x 10
ENGLISH