Victaulic VE414MC, Operating And Maintenance Instruction Manual

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TM-VE414/415MC_54 REV_D
TM-VE414/415MC / Operating and Maintenance Instructions Manual
EXPLANATION OF CRITICAL ROLL GROOVE DIMENSIONS FOR
ORIGINAL GROOVE SYSTEM (OGS) PRODUCTS
WARNING
• Pipe dimensions and groove dimensions shall be within the tolerances specified in the
tables on the following pages to ensure proper joint performance.
Failure to follow these specifications could cause joint failure, resulting in serious personal
injury and/or property damage.
A B
D
B
T
C OD F
Original Groove System (OGS) Roll Groove
Illustration is exaggerated for clarity
NOTICE
FOR OGS COUPLINGS WITH RATINGS ON LIGHT-WALL STAINLESS STEEL PIPE:
• Victaulic RX rolls SHALL be used when roll grooving light-wall stainless steel pipe for
use with OGS couplings.
Pipe Outside Diameter – Nominal NPS Pipe Size (ANSI B36.10) and Basic Metric Pipe Size (ISO
4200)
– The average pipe outside diameter shall not vary from the specifications listed in the tables
on the following pages. Maximum allowable pipe ovality shall comply with the requirements of ASTM
A-999 and API 5L. Greater variations between the major and minor diameters will result in difficult
coupling assembly.
For NPS pipe, the maximum allowable tolerance from square-cut pipe ends
is:
1/16 inch/1.6 mm for 4–24-inch/114.3–610-mm sizes and
3/32
inch/2.4 mm for
26-inch/660-mm and larger sizes. This is measured from the true square line.
"S" Max.
Any internal and external weld beads or seams shall be ground flush to the pipe surface. 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.
“A” Dimension – The “A” dimension, or the distance from the pipe end to the groove, identifies the
gasket seating area. This area shall be free from indentations, projections (including weld seams),
and roll marks from the pipe end to the groove to ensure a leak-tight seal. All foreign material, such
as loose paint, scale, oil, grease, chips, rust, and dirt shall be removed.