Installation Guide

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Installation:
4. Fabricating fitting
covers
This section includes:
a. Using miter boxes, pg 8
b. Using Armaflex Sheet on
pipes, pgs 9 & 10
b.1. Armaflex Templates,
pg 11
b.2. Yield of Armaflex Sheet,
pgs 11-12
c. Armaflex Sheet on 90° Elbows,
pg 13
d. Armaflex Sheet on Flanged
Valve Fitting Covers, pgs 14-
15
Use unslit Armaflex when
making up covers for fittings.
Make up a group of covers at
one time instead of cutting and
assembling each one as you
come to it.
Sweat and screwed fittings
On sweat fittings, use the
same size Armaflex for covers
that you use to insulate the tub-
ing.
On screwed fittings, make up
fitting covers from Armaflex with
an inside diameter large enough
to overlap the insulation on the
pipe next to the fitting. Make the
fitting cover long enough to over-
lap pipe insulation by a minimum
of one inch on each side. (See
sleeving sizes on page 8.)
Large-size pipes
On large-size weld pipes (3″
IPS and above) and screwed iron
pipes (2″, 2-1/2″ and 3″), fitting
covers can be made from
Armaflex Sheet Insulation.
Armaflex Sheet is available in 36″
x 48″ sheets or 4′-wide rolls in a
variety of thicknesses and
lengths. Fitting covers for
Victaulic Couplings can also be
made from Armaflex Sheet
Insulation. Sheets can be cut
easily and accurately, using a
sharp knife and a template. (See
page 11 for template size and
pattern number.)
Tight joints mean a
trouble-free job
Important: Use Armaflex 520 or
520 BLV Adhesive only.
Armaflex 520 or 520 BLV
Adhesives are vapor-retarder
adhesives developed for use
with Armaflex Insulations. Use it
properly, and you’ll have joints
that stay tight.
Tools for making fitting
covers
1. Miter Box: A sturdy miter box
and a knife can do most large-
size pipe fittings up to 5″ IPS.
The miter box can also be
used on smaller-size pipe fit-
tings.
2. Sheet Templates
For screwed iron pipe fittings
2″, 2-1/2″ and 3″ IPS and for
long-radius weld iron pipe fit-
tings 3″ IPS to 10″ IPS, use
Armaflex Sheet Templates.
These sheet templates take all
the guesswork out of insulat-
ing 45˚ ell, 90˚ ell, and tee fit-
tings. Available from Armacell,
each template set comes with
complete application instruc-
tions. (See pages 11-12 for
details.)
3. Armaflex Sheet Templates are
also available to make fitting
covers for Victaulic Couplings.
The fitting cover templates are
available for pipe sizes from
3/4″ IPS to 12″ IPS.
4. Use carton template on the
side of all 6′ tube cartons, to
make fitting covers for 45, 90,
ells, tees.
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