PRE-OPERATION ADJUSTMENTS
Every RG3210 tool is checked, adjusted, and
tested at the factory prior to shipment . Before
grooving, however, the following adjustments
should be made to ensure proper tool operation .
WARNING
• Always turn off power before making any
tool adjustments.
Accidental startup of tool may result in
serious personal injury.
GROOVING ROLLS
Ensure that the proper roll set is on the tool .
Rolls are marked with the pipe size and part
number . Refer to the “Tool Ratings for Steel
Pipe” section . If proper rolls are not on the tool,
please refer to relative sections to change the
rolls .
CAUTION
• Ensure that roll retaining bolts are tight.
Loose retaining bolts could seriously
damage both the tool and the rolls.
PREPARING PIPE FOR GROOVING
CAUTION
• For maximum grooving roll life, remove
foreign material and loose rust from the
interior and exterior surfaces of the pipe
ends. Rust is an abrasive material that
will wear the surface of grooving rolls.
Foreign material may interfere with or
damage grooving rolls, resulting in distorted
grooves and grooves that are not within
Victaulic specifications.
For proper tool operation and production of
grooves that are within Victaulic specifications,
the following pipe preparation steps must be
followed .
1.
Victaulic recommends square-cut pipe for
use with grooved-end pipe products .
2.
Raised internal and external weld beads
and seams must be ground flush with the pipe
surface 50 mm back from the pipe ends .
3.
The inside diameter of the pipe end must
be cleaned to remove coarse scale, dirt, and
other foreign material that might interfere with
or damage grooving rolls . The front edge of the
pipe end shall be uniform with no concave/
convex surface features that will cause improper
grooving roll tracking and result in difficulties
during coupling assembly .
PIPE LENGTH REQUIREMENTS
RG3210 tools are capable of grooving short pipe
lengths without the use of a pipe stand . Table 1
identifies the maximum pipe lengths that can be
grooved without the use of a pipe stand .
Pipe lengths, longer than those listed in
Table 1 (and up to 6 meters), must be
supported with a pipe stand . Pipe lengths,
from 6 meters up to double-random lengths
(approximately 12 meters), must be supported
with two pipe stands . Refer to the “Long Pipe
Lengths” section for instructions on how to
groove long pipe lengths .
If pipe is required that is shorter than the
minimum length listed in Table 1, shorten
the next-to-last piece so that the last piece is
as long (or longer) than the minimum length
specified .
EXAMPLE:
A 6 .2-m length of 219 .1-mm
diameter steel pipe is required to finish a
section, and only 6 .1-m lengths are available .
Instead of roll grooving a 6 .1-m length of carbon
steel pipe and a 100-mm length of carbon steel
pipe, follow these steps:
1 . Refer to Table 1, and note that for 219 .1-mm
diameter carbon steel pipe, the minimum length
that should be roll grooved is 255 mm .
2 . Roll groove a 5 .945-m length of pipe and a
255-mm length of pipe . Refer to the “Long Pipe
Lengths” section .
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/ Operating and Maintenance Instructions Manual
Содержание RG3210
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