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Pipe Preparation |
| A groove is prepared on the pipe end to receive the coupling housing. The groove takes various configurations depending on the pipe wall thickness, pipe material, size and other factors. |
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Roll
Grooving
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The
concept of cold forming (rolling) a groove without metal removal
into pipe was developed by Victaulic in 1955. The concept was first
used for light-wall pipe with insufficient wall thickness to permit
cut grooving. Developments now permit roll grooving of standard
weight steel pipe, from 26.7 to 1066.8 mm. Victaulic Vic-Easy roll grooving tools are all designed to rotate the pipe as an upper roll is impressed into the pipe. New enhanced tracking rolls (ETR) provide hands-free grooving. The lower roll, in addition to driving the pipe, is the female die inside the pipe. |
| Groove
depth is controlled by an adjustable stop. The configuration of
the rolls provides the proper "A" (pipe end to edge of
groove) and "B" (groove width) dimensions. Standard roll grooved joints will provide one-Half the linear movement or angular deflection of the same size standard cut grooved joint. Roll grooving is applicable for stainless steel (may require special "RX" rolls), carbon steel, aluminum (Type 6061-T4), PVC, copper and similar metallic pipe. |
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| Vic-Easy
tools cold form groove into pipe - maintains dimensions |
Roll
grooving removes no metal from pipe |
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Cut
Grooving
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Victaulic
developed the grooved piping concept in 1925 and designed the first
portable cut grooving tools in 1945. Technology now provides a variety
of tools for cut grooving from 26.7 to 914.4 mm pipe including steel,
stainless, aluminum, ductile and cast iron, PVC plastic pipe or
lined pipe. Victaulic cut groovers are driven around a stationary pipe to machine away material, providing a groove. The design of the tools assures a groove which is concentric with the pipe O.D. even with out-of-round pipe. |
| The
groove is always of uniform depth. An integral pipe stop is adjustable
to provide proper groove depth. Stops in the tool provide the proper
dimension from the pipe end to the groove ("A" dimension).
The tool bit provides proper groove width ("B" dimension). |
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than threading |
proper groove dimension |
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Videos
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Click
on the links at the right to view a computer animation of: |
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