The minimum slot width that can be achieved is about 0.012 in. Slots that cut less than 0.020 in. in width involve high
costs because of excessive machine downtime to replace broken saw blades that overheat, warp, and break.
The single-slot staggered, longitudinal pattern is generally preferred because the strength of the unslotted pipe
is preserved. The staggered pattern also gives a more uniform distribution of slots over the surface area of the pipe.
The single-slot staggered pattern is slotted with an even number of rows around the pipe with a typical 6-in. longitudinal spacing of slot rows.
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