14
2483 · Stand/Update
: 11.2021
EN
1.
Preliminary notes
1.1
Safety notes and hints
In these operating instructions, the following symbols with warnings are used:
Symbol
Meaning
CAUTION
Danger to persons.
Failing to observe this can cause low to medium severity
injuries.
NOTICE
Danger to objects.
Failure to comply can result in objects damage.
1.2
Designated use
The scraper tool FWSG 900 L serves the processing of pipes made of PE 80,
PE 100, PE 100 RC, PE 100 RT and PE-Xa in the dimensions d 630 to
d 900, SDR 17 - SDR 33. When processing pipes of other SDR sizes, please
contact our application-technical department. (10” – 28” IPS). The scraper tool
FWSG 900 L is a precision tool and is suitable to remove the oxide layer as
preparation for an electrofusion joint which forms on the surface of PE pipes
during their storage. The design of the FWSG 900 L allows scraping of the pipe
surface along the
entire length of the coupler or half of it:
• Only half the coupler (up to where insertion will end) needs to be scraped
when a simple fusion process is to be applied.
• Scraping the entire length of the coupler is required when a slideover
coupler is employed.
The service life depends on the frequency of use and the external influences
during use and/or the storage or transport of the tool.
These operating instructions apply in connection with the FRIALEN large
couplers assembly instructions.
NOTICE
Before any fusion, a scraping has to be performed in any case!
Leaking fusion joints may result if the oxide layer is not removed completely.
