Victaulic VE414MC, Инструкция по эксплуатации и техническому обслуживанию

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TM-VE414/415MC_16 REV_D
TM-VE414/415MC / Operating and Maintenance Instructions Manual
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 or grooves that are out of Victaulic
specifications.
For proper tool operation and production of
grooves that are within Victaulic specifications,
the following pipe preparation steps shall be
followed.
Victaulic recommends square-cut pipe for use
with grooved-end pipe products. Square-cut
pipe SHALL be used with Victaulic FlushSeal
®
and EndSeal ® gaskets. For 12-inch/323.9-mm
and smaller pipe sizes, beveled-end pipe may
be used with Victaulic standard and Vic-Flange
gaskets, provided that the wall thickness is
standard wall (ANSI B36.10) or less and that the
bevel meets ANSI B16.25 (37
1/2
°) or ASTM A-53
(30°). NOTE: Roll grooving beveled-end pipe
may result in unacceptable pipe flare. Beveled
steel pipe in 14–16-inch/355.6–406.4-mm sizes
is acceptable with Victaulic Advanced Grooving
System (AGS) standard or FlushSeal gaskets,
including AGS Vic-Flanges.
1a.
For 12-inch/323.9-mm and smaller pipe
sizes, raised internal and external weld beads and
seams shall be ground flush with the pipe surface
2 inches/50 mm back from the pipe ends.
1b. For 14–16-inch/355.6–406.4-mm pipe sizes,
raised internal and external weld beads and
seams shall be ground flush with the pipe surface
4 inches/100 mm back from the pipe ends.
2.
The inside diameter of the pipe end shall
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
VE414MC tools are capable of grooving short
pipe lengths without the use of a pipe stand.
Table 1 identifies the minimum pipe lengths
that can be grooved safely by using Victaulic
Grooving Tools. In addition, this table identifies
the maximum pipe lengths that can be grooved
without the use of a pipe stand.
NOTE: Grooved
pipe nipples, shorter than those listed in Table
1, are available from Victaulic.
Pipe lengths, longer than those listed in
Table 1 (and up to 20 feet/6 meters), shall be
supported with a pipe stand. Pipe lengths, from
20 feet/6 meters up to double-random lengths
(approximately 40 feet/12 meters), shall be
supported with two pipe stands.
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 20-foot, 4-inch/6.2-m length
of 10-inch diameter steel pipe is required
to finish a section, and only 20-foot/6.1-m
lengths are available. Instead of roll grooving a
20-foot/6.1-m length of carbon steel pipe and
a 4-inch/102-mm length of carbon steel pipe,
follow these steps:
1.
Refer to Table 1, and note that for 10-inch
diameter carbon steel pipe, the minimum length
that should be roll grooved is 10 inches/255 mm.
2. Roll groove a 19-foot, 6-inch/5.9-m length
of pipe and a 10-inch/255-mm length of pipe.
Refer to the “Long Pipe Lengths” section.