Spiral pipe is designed to be easy to install:
all pipe ends are female, and all fi tting ends
are male, allowing pipe and fittings to easily
slip together. There are several methods of
joining Spiral pipe and fittings, depending
on your application and your applications
requirements.
Slip Joints
Slip joints are the simplest method of joining
Spiral pipe:
Fitting-to-fitting joints (male to male) require
a separate coupling, C-1-F; or a short, hand-cut
section of Spiral pipe can be used as a
coupling for quick, in-the-field connections.
Pipe-to-pipe joints (female to female) also
require a separate C-1 coupling.
Pipe-to fitting joints slip together without the
need of a separate coupling.
Slip joints are fastened with screws or
pop-rivets, and duct sealant or sealant tape
(page 27) when additional air tightness is
required. (The screws or rivets hold the pipe
in place as the sealant cures.) The standard
recommendation is for screws or pop-rivets
to be used at a maximum of 15” intervals with
no fewer than three screws or pop-rivets per
joint. Spiral Manufacturing recommends a
maximum interval of 6”.
Coupling: Use standard C-1-F coupling or,
in the field, cut a short length of spiral pipe.
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Product Selection Schematic
Standard Physical Properties of Spiral Pipe
