leading Midwest public utility uses
durable Thermobestos Insulation
underground steam lines
Johns-Manville Thermobestos provides its own support
in wet concrete ... after drying, retains its original
conductivity-lowest ofall the calcium silicates
A GIANT public utility in the Midwest has discovered an ingenious way
to use Thermobestos® underground
-it's known as the "solid pour"
method, and it's illustrated below.
Those who've tried "solid pour"·
construction will tell you that you
can't match its economy- and material savings are truly substantial!
There's no pouring of separate bottom, no building and placing of
forms, no envelope! And Johns-Manville Thermobestos pipe insulation lets you use this economical
method just about anywhere.
Thanks to its high compressive
strength, Thermobestos needs no
pipe supports, provides its own "no-cost" buffer between pipe and con-
crete. Thermobestos and "solid pour"
methods have been successfully used
in areas where drainage problems
exist and flooding is a possibility.
For even though it should become
saturated with water, Thermobestos
regains its original low conductivity
as soon as it dries out.
Ever since its introduction, Thermobestos has been widely acclaimed
throughout the power-generation and
process industries for insulating indoor and outdoor pipelines to 1200F.
Its k factor is the lowest of all insulations in general use for these services.
Thermobestos also offers top
strength and rigidity; withstands
crushing, easily resists unusual service abuse. Yet with all its strength,
it is lightweight for easy handling
and fast application.
A hydrous calcium silicate that's
molded to size for proper fit, Thermobestos is quick, easy to apply ... its
strength makes it particulm:ly adaptable to time-saving prefabrication of
fittings and bends. Furnished in large
sections, Thermobestos reduces the
number of joints needed . . . comes
in a complete selection of pipe insulation sizes up to 30" O.D. Also available in 6" x 36" and 12" x 36" blocks
in a full range of thicknesses.
Let us send you a copy of the informative Thermobestos booklet,
INI69A. Write Johns-Manville, Box
14, New York 16, N.Y. In Canada,
Port Credit, Ontario.
"JOHNS-MANVILLE
fJ1
PR.ODUCTS
AIR SPACE
LAYER OF
TAR PAPER
CONCRETE
THERMOBESTOS
INSULATION
PIPE
PEBBLES
4" SEWER
CROCK
6" )( 6"DRAINAGE-
POCKET, 30' c. TO
c. EACH SIDE OF
CONCRETE
STAGGERED
Above, Solid-Pour Steam
Main Conduit
Ready for "solid pour." Thermobestos insulation
is shown in position with waterproof jacketing
partly installed (see diagram for trenching detail).
Easily withstands weight of poured concrete.
Here in the same trench Thermobestos is shown
with concrete poured solidly around it.
