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J acketless
ASBESTOS
PIPE COVERING
FOR STEAM AND HOT
UNITED STATES GYPSUM COMPANTS
WATER INSULATION
NATIONAL ASBESTOS PLANT
JERSEY CITY. N. J.
A well made, sturdy insulation for low pres
Quality in Every Product
sure steam and hot water pipes that costs no more than canvas jacketed covering
National Asbestos Products axe made in a
and can be applied in two-thirds less time (See page 18). It has a clean, white smooth
modern plant .equipped to provide the ut
appearance, is shrinkproof and crackprooi,
most in insulton efficiency. Careful re
r
search and scientific methods of control enable us to oiler the finest quality in every
and its finish is washable. This round, air cell insulation is clean
product at a reasonable cost to the user.
and easy to handle. There is no paste to be
National Insulation Materials are backed
prepared and applied to canvas Caps. You
by years of experience in the Asbestos In
simply open the sections, put them on tie
sulation held. Their production is now fur
pipe, insert the staple, and apply the bands.
ther benefited by the vast experience of
An advancement in pipe covering manu-
the United States Gypsum Company in the
iacture that provides greater efficiency and
Building Materials field.
economy and a much neater appearance.
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Sf. co*illNT nil V*S|T1 ft irifu Itpiu* U). tss ft-M
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Super Air Cell
ASBESTOS
PIPE COVERING
Wool Felt
PIPE COVERING
TOR STEAM AND HOT WATER INSULATION
National Wool Felt Pipe Covering is made with layers of creped wool felt, having an
National Super Air Cell is used for hot
inner liner of asphalt saturated asbestos paper, permitting its use on either hot or
water and low pressure steam pipe insula tion. It is made with full quarter-inch cor rugations horn strong asbestos paper, tinrly bonded together, and has an addi tional wrapping of asbestos paper, covered with a canvas jacket. Brass lacquered bands provide a finished appearance.
cold water lines.
Wool Felt Sectional Covering used cn hot water service lines prevents water irom cooling on its way from healer to faucet and retards loss of heat from water slim ing in the lines. Cold water lines covered with Wool Felt Sectional Covering are net
Super Air Cell is light in weight, strong,
effected by warm air surrounding them.
/
and uniJornliy roundL It can be sawed
National Wool Felt Pipe Covering may also
without separating the corrugations, and it
be used to prevent sweating under miid
can be removed and used again on other pipes. Has a white, smooth appearance and does not shrink. Four-ply or 1* thick Super Air Cell covering can be used effec tively for temperatures up to 350 F.
conditions.
An asbestos paper lining unde: the can vas jacket provides a smooth, white appear ance. All joints are finished with brass lac quered bands.
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Anti Sweat
PIPE COVERING
PREVENTS SWEATING
Nation*] Anti-Sweat Pipe Covering is made ot creped wool felt paper, having five waterproof asphalt impregnated asbestos paper liners. It is made in two sections, one inside the other, breaking joints longitudi nally and transversely. A three-inch lap seals longitudinal cut Generally used on lines carrying liquid from 32* to 50* F.
85% Magnesia
PIPE INSULATION
Never-
A HIGH PRESSURE INSULATION
Fre eze
An exceptional!'/ good insulating ma'erial composed of 85% Carbonate cf Magnesia
PIPE COVERING
and long asbestos fibers. It contains a great . number of microscopic dead an ceils. Used on pipe Lines having a temperature up to 6003 F.
PREVENTS
This pipe insulation is furnished in three-
r FREEZING
foot lengths, split horizontally and joined
National Never-Freeze Pipe Covering is made in three-foot sections 1 */4* thick and is used to prevent cold water and drain pipes from freezing in unheated rooms.
Made of alternate layers of pure cattle hair felt and wool felt paper, with a satu rated asbestos felt liner and canvas jacket.
with heavy, securely pasted canvas jackets, forming hir.ge and lap, and wvua necessary bands for proper application.
65% Magnesia Insulation is also fur nished in block form for insulating flat, curved and irregular surfaces, and in cement or powdered form, bclh materials providing highly efficient ir.suiaticn
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Laminated
Range
Asbestos
and Sponge
Boiler
INSULATION
PRACTICALLY INDESTRUCTIBLE HIGH PRESSURE
INSULATION
Constructed of special asbestos paper im pregnated with finely ground sponge, built up like a book in laminated form and pro viding practically indestructible insulation. It will withstand severe pipe vibration and rough usage. Retains original high effici ency even when wet
Jacket
National Range Boiler Jacket, made of 3-ply white flex ible quarter-inch corrugated asbes tos paper, is fur nished in two sec tions, one for upper part of tank and one for lower part, with five bands.
EASY TO APPLY
The two sections are wrapped arounc the
tank and tne shiny black metal bands put
into place. Plaster Asbestos, which comes
with each jacket, is then spread over the
top and the job is finished. The smocth
'V white surface of the jacket is easily cleaned.
PIPE AND STACK INSULATION
t
ABSOLUTELY WATERPROOT
SAVES FUEL
A strong, practical, efficient and economi cal insulation for pipe lines running from building to building. Because this insula tion is waterproof it may be buried VP trench, or tunnel, or erposed to the weather and still retain its insulating value.
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Water in the tank heals more quickly, less fuel is required to keep the water het, and it remains hot over a much longer penod. The jacket provides a saving in fuel ccrt of from 40Jo * 60/o and pays for iiself within a short time.
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Asbestos Paper
TIRE RETARDANT
Hational Asbestos
Paper is used prin
cipally as a hre re
tardant but is also
used for insulating purposes requiring a
Asbestos
minimum thickness. It is used between walls, Doors, and ceilings, ior wrapping furnace or heater pipes, and for general
Air Cell Boards
fireproofing work. Comes in rolls 16', 24'. and 36' wide, weighing 25, 50 ar.d 100
A splendid type of insulation for medium
lbs. The thickness is from .018 up to ^i'.
or low pressure boilers, heaters, dry rooms,
hot water tanks, and similar surfaces not having extreme temperatures. Standard sizes of the boards are 36' x 36' and
6' x 36'. Thicknesses run from V4' nP 1 4 in. and all corrugations are a full quarter inch. Asbestos Air Cell Board is also used
r
Corrugated
Asbestos Paper
as an insulation on air conditioning ducts.
Asbestos
L\
3
A GOOD INSULATOR
Recommended
highly for insulat
Mill Boardr ing hot air heater casings, pipes and duels. The paper is usually wrapped around the
A low priced, light weight sheet used to
pipe or duct twice and held in place w.ih
insulate radiator enclosures, ovens and
silicate ol soda and wired around the cut-
ranges. Also used as a fire retardant to line
side. It is made with full, uniform */i' cor
ceilings, walls, and metal doors. Standard
rugations and is furnished in rolls 36' wide
size ot sheets 42'x4fl'. Thicknesses run
containing 250 sq. If. Approximate weight
from
up to 1 in.
per roll 50 lbs.
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Asbestos Cement
FOR COVERING BOILERS, PIPE FITTINGS, ETC.
An efficient insulating cement, light in weight, having an above average covering capacity and finish. Composed of selected asbestos fibers and high grade insulating materials. Easy to apply and dries white and smooth.
Available in a variety ol grades for every insulating purpose where the use of sheet or block inflation would be impractical, or for finishing over air cell blocks.
Furnished in 100 lb. burlap bags or car tons of lesser weighL
COVIRING CARACITT--ONE INCH THICK
Ho. 7 No. S
20 Sq. Fl
No 3
18 Sq. li.
Ha 2
Ha I . 40 Sq Fl
25 Sq. FL 29 Sq. FL
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Asphalt Quick
Drying Paint
PREVENTS RUST. PRESERVES
BOILERS AND STEAM PIPES
National Quick Drying Paint is an asphalt paint that will prevent rusting when ap plied to Steam. Water, Gas or Oil Piping, Boiler Fronts. Oil and Water Tanks, Smoke Pipes, and all kinds of metal work. It will preserve their efficiency and improve then appearance.
This paint may be used for outride as well as inside work, such as gutters, down spouts, fire escapes, vent pipes, etc. Threequarters of a gallon will cover 100 Sq. Ft. of metal surface one coat.
National Quick Drying Paint is furnished in cans one to five gallons in size.
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Air Cell
PIPE COVERING
CARTON CONTENTS
Pip. Su
Lineal Teel Per Carton
Pipe Sue
Lin*41 r~t Per Carton
Vi* `120 3J/4/ * - 102
2V4' 3'
1* 90 314'.
l'/4* 66 4*
1V4' 60 5*
2' 45 6' 1
36 36* 30* 27* 21* 15V
In cartooa narked * nrcliotu are ahipped open. [ faci roumtin )
PIPE COVERING
CARTON CONTENTS
Pipe Tliicteu
r
Tluci
IV V Tluck ,, n-A
Vi'
3/' r iy* i1/*' 2' 2>V 3'
72 135 60 1 105 45 90 36 72 36 60 30 45 21 36 18 27
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102 90 72 60 54 36 33 18
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F A C E S IX T E E N |
1. fall
Item atsalgnad raporl dMHktlad by
Heet Lomm From Bara Pipes and Efficiencies of Improvad Asbeetocsl CompaLrad to Efficianciaa of Avsraps Commarcial Air Call
Fip* Rlaa larkti
Bara Plpa Loaa 8 l . par II. par Ht.
Tamp. DUUt noa
of
a-n.
Improved
Arbeeloeal
3 Fly
CenmaiHtl
Air Call
3 Plf Imprxtaf Aabaelocol
4-Plr Canattdtl
Air Call
4 n?
*1 m pm rad
A rbrdoral
3
197.3
100 67.2 68 4 72.6 72.4
75.9
330.1
130 68 7 69.9 74.0 73.8 77.2
676.3 230 71.2 72.3 76.4 76.2 79.4
3. KalraH Irnm raptrtl f laat Mad* V>* ffiadtlnal Taditf Labor atortaa, Mam York Cll? War 16, 1019 ( ire; oq a I tad ealkoilty oak laa( aod laaatfok wntk), on Aiba*a Air Call Corarlng wad* by National Arbaaioa Manyfaclatlog C*-, laraay City, N J.
Efficiancy or Parcantaqa of Haat Loss Pravantad
Ajyftat. Tamo. Olllatence of
100
130 230
NATIOHAI Air Call
66.3 70. 73.
3 PW NATIONAL Air Call
73.3 75 5 77.3
4 Pit NATIONAL Alt Call
73. 73. 80.
HOTf TV a gtse*er dHrianey short* h| National
la Ho. 3 ret Atbalorl and Cnmmatrial Air Call ll^aiM la Ho 1.
IU0 Tamp. PiHsienra mneni lampaulatt dlllixnrt oar room la*pattlr, atid it oqwtl to (70' f Hoi Walar oa knaief y*wfa.
(50 Tamp. CVUataaca Um|>aialia dtdetnnca traat room lam pat a la r a. aH la aqttl to 9 Ilia 8laem Piaoviia ofdb*>ll Qt
250 Tamp. tHMataaoa atim laapaiilira didst a ace trrar room lam para la ra, and la aq ual lo 00 lb*. Steam Piamaia oa bollat f*9a>
'
Efficiencies of Two Moit Efficient Pipe Coverings
(TVa latm 'aflKrtener" aa wead In nonnacHnn *Hk r*pa .....................................IK* paroanl of radaHloa of keel loaa (mm beta plpaa hr Vo aaa of plpa notnlef, I a , IVa rttlkfl atpraaead la pntmnl o( Hat# plpa Irm )
FaempW: A plaan Unplh of Kara e>am piping loaaa tka aquWslenl e( 100 dm of ooal par koat A plpa oorerlng aklck k*. aa alflriaaof of Afl" ta* 01 Hit of coal pat hn#f.
Rlasm Ptaaayro ^lera Tampatalata * T . . . . Tempeitlyta Iklleianra * F . . .
85 K Hlfneeli |* thick ...............
83 Megnnala I 1^* thick................... H5\ Hegnaela 3* tklik...................
National Lealetled I ^ ^ *( *klrk
Arbaalrm end .liiuii^e J ^ Iklrfc
' * '2
Iktrk
10 Iba. 336 4 166 4
80 lbs. 374 354
f.ii.
83 1 85 8 88 1 85 7 87 9 8Q 9
Loaa
0 433 0 385 0 369 0 358 0 303 0 393
S Kll.
85 5 87 8 68 8 87 3 8' 3
91 1
Loaa
0 4 30 0 360 0 300 0 380 0 320 0 264
130 IU 300 3 M0
rii. 86 3 88 5 80 4 07 7 08 7 M 4
Lee
0 4 13 0 383 0 301 0 .386 0 33.1 0 270
180 Iba. 370 7 DUO
30n Ha
DHrt
3 Irt
m 80 7 on 9 90 on s P0 1 01 7
l^aa 0 4 36 0 36.1 0 302 0 388 0 334 0 273
5; rii 87 1 89 3 91 1 88 5 00 1 02 U
1 At
0 440 0 iflQ 0 304 0 D0I 0 IX) 0 274
Tka ostium na knadml "I
glta Ilia loaa In B T U. par aqa ere foot of plpa aHe, par d mg tee F. dill ere nr etntemparalure Uieoi
Ik# plpa a it*I alt, jm< k>>tr.
NOTE--All Hala on kael 11 ansmieelnn ihtougk plpa mtt|gr Qltra #h#*a ( btmil oa 5* pipe alia Tka alllrlanrlaa will la eligbllf laae tor amallar pl| >* and slightly gtrtlet lor latgar pip* altaa. for all practical anglnnattng peipeet Ika line del* .ll kn lellfltdittr hertete etteHon* dn Ift l#ptitlii#, humtdllf of alt, alt current#, ot*ndilln nl plpa critatlng aatfaca, ale , alll ellnot aluea la actual pterH*e aa murk <1 no* mot# Ikaa variation# daa t* tllflataaoa la cutraleia.
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i Jacketless
ASBESTOS PIPE COVERING
The following table show* the comparative time required to install 300 lineal feet of Canvas lacketed and National lacketless Pipe Covering.
Seven operations axe required to apply the Canvas Jacketed Covering and only three for the National lacketless, a saving in tune of more than two hours.
Installing 300 Lineal Feet of Covering
CAXYAS-JACKETED
Operation
Minnies
NATIONAL JACKETLESS
Operation
Minnies
1. pTtpaja pajta
2. Pun bsck canvas Oapc
3. Opan section*
4. Apply putf to (Ups
5. Pul sections on P*P*
6. Pat down pastad Bapa
7. Apply bands
s
50 3
30
23
SO 20
1. Open sections
x Pot sections cm W
3. Apply baoda
Total Min atea
185 Total Minolta
3
25 20 50
Um than ana hour to do with National )cittlru what laquilM otwt thiM hour* with ciqtii jacket
COTWTUIQ.
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PRICES PER LINEAL FOOT
ALL TYPES OF PIPE COVERINGS
Isxd*
D> a z atri
d f .pa
I' TWi
I'V T*kir k
1
a*
Torek
J:_i it
Do.eU ! L/i --G ^:
Tt_:a
V
V
1* 1>,4-
142`
24' 3`
34'
4*
!r 5" 6'
T
r
9' 1G' 12' 14' 15` 16' 202r 30*
SO 22 .24 .27
.3: 33 .36 .40 .45 .50 .60 .65 .70 80 1.00 1.10
1.20 1.30 1 95 2.10 2 35 2 0 2 5
3 30 4 CO
SO.46 .49 .52 .56 .60 .64 .70 .76 .82 .88 .94 1.00 1.10 1 20 1.35
1 50 1.55 1 85 2 i: 2 35 2 60
2 65 3.30 4 00
SG.75 .80 .85 .90 .95
1 00 1 05 1 15 1 25 1 35 1 45 1 55 1 7C 1 85 2 00 2 20 2 40
2 70 3 00
3.30 3 60 4 00 4 50 5 50
SO 5 s: 20 .70 s L 3
.75 ` 1 40 .30 1 45
.c5 1 35
.90 1 00 i :o 1.23 1 40 . 1 50 1 0 1 80 4 tD 2 50
1 55 1 75 1 90 2 C5 2 20 2 55 2 5-0 2 70 2 90
3 15
2 70 3 40
2 90 4 :o
J CO
4 10
4 6:
c -
4 60
5 10
-`3
5 0
:o
CO
i Vj
e 40
7 CO
6 40
PRICES PER SQUARE FOOT
ALL TYPES OF BOARDS OR BLOCKS
TLci;>u
rn: par aq X
4* ..............24
V . . .27
r.
.30
Ti_ ; gi
14'
2' 3`
[ net 'rs.'un
r r :e per Kn
.45 .60 .90