Rubatex
INSUL-TUBE 180
®
Pipe Insulation Made in America
Designed for the HVAC/R Industry
Flexible Closed Cell Insulation
INSUL-TUBE® 180 has a very tough RESISTANCE TO MOISTURE
skin which withstands tearing, rough VAPOR FLOW
handling, and severe environmental The closed-cell structure and unique
formulation of INSUL-TUBE® 180
conditions, and yet is quite flexible
for easy installation. INSUL-TUBE® 180 effectively retards the flow of moisture
has superior cold weather flexibility. vapor, and is considered a low trans-
mittance vapor retarder. For most
INSTALLATION applications, INSUL-TUBE® 180 needs
With a factory-applied coating of talc no additional protection.
on the smooth inner surface, INSUL-
Additional vapor barrier protection may
TUBE® 180 slides easily over pipe
be necessary for INSUL-TUBE® 180
or tubing for quick installation. When
when installed on low temperature
applied to existing lines, tubing is slit
surfaces that are exposed to continuous
lengthwise and snapped into place.
high humidity.
(Slitting can be done on the job with
a sharp knife or pre-slit INSUL-TUBE®
FLAME AND SMOKE RATING
180 is available on request.) All seams
INSUL-TUBE® 180 Pipe Insulation in
and butt joints should be sealed with
wall thicknesses of 1" (25 mm) and
DESCRIPTION an RBX-approved contact adhesive,
below has a flame spread rating of 25
INSUL-TUBE® 180 Pipe Insulation is making sure both surfaces to be joined
or less and a smoke development
an environmentally friendly, CFC-free, are coated with adhesive. Fittings
rating of 50 or less as tested by
flexible elastomeric thermal insulation. are fabricated from miter-cut tubular
ASTM E 84 Method of Testing entitled:
It is black in color, marked in gold sections and cover, flanges, etc.,
“Surface Burning Characteristics of
ink, identified as INSUL-TUBE® 180, from INSUL-SHEET®.
Building Materials.�
and is available in unslit tubular form
in wall thicknesses of 3/8",1/2", 3/4", Numerical flammability ratings alone may not
OUTDOOR APPLICATIONS
or 1" in sizes ranging from 3/8" I.D. define the performance of products under actual
INSUL-TUBE® 180 Pipe Insulation is fire conditions. They are provided only for us in the
to 8" IPS. INSUL-TUBE® 180 key made from a UV resistant elastomeric selection of products to meet limits specified, when
physical properties are approved compared to a known standard.
blend. For moderate UV exposure, no
through supervision by Factory Mutual additional protective coating is needed. SPECIFICATION COMPLIANCE
Research Corporation. However, for severe UV exposure ASTM C 534 Type 1 (Tubing)
(rooftop applications) or where opti- ASTM D 1056-00-2C1
APPLICATIONS ASTM C 1534-02
mum performance is required, RBX
New York City MEA 186-86-M Vol. IV
INSUL-TUBE® 180 is used to retard 374 UV protective coating or approved
USDA Requirements
heat gain and prevent condensation jacketing should be used. For best
UL 94-5V Flammability Classification
or frost formation on refrigerant lines, appearance, two coats are recom-
(Recognition No. E147665)
cold water plumbing, and chilled water mended. For more detailed information
ASTM E 84 1" 25/50-tested
systems. It also retards heat flow for refer to the Application Guide.
according to UL 723 and NFPA 255
hot water plumbing, liquid heating, dual
Complies with requirements of
temperature piping, and many solar sys- UNDERGROUND CAN/ULC S102-M88
tems. INSUL-TUBE® 180 is designed for For buried lines above the water
NFPA No. 101 Class A Rating
the HVAC and Refrigeration industry. table, use a clean fill such as sand
Meets requirements of NFPA 90A
(3"-5" layer) to protect INSUL-TUBE®
INSUL-TUBE® 180 is recommended Sect. 2.3.3 for Supplementary
180 before backfilling. It is recom-
for applications ranging from -70°F Materials for Air Distribution Systems
mended that materials to be buried
to 220°F (-57°C to 104°C). The Meets requirements of ASTM C-411
are properly sealed at all seams and
expanded closed cell structure (Test Method for Hot Surface Performance of
butt joints with an RBX-approved
makes INSUL-TUBE® 180 an efficient High Temperature Thermal Insulation)
contact adhesive. For optimum perfor-
insulator and provides effective Meets requirements of UL 181
mance, the lines should be encased in
moisture vapor resistance. sections 11.0 and 16.0
a conduit to protect them from prob-
(Mold Growth/Air Erosion)
lems associated with ground water.
MIL-P-15280, For T (Tubing)
Phone 800-765-6475
INSUL-TUBE® 180 Pipe Insulation
PRODUCT DATA
INSUL-TUBE®
Physical Properties Test
180 Methods
Insulation
Thermal Conductivity (K) 90° F (32° C) Mean Temp .270 (.039) ASTM C 177
BTU -in/hr - Ft2 - °F (W/mK) 75° F (24° C) Mean Temp .265 (.038) ASTM C 177
50° F (10° C) Mean Temp .260 (.037) ASTM C 177
Operating Temperature Range Upper 220° F (104° C)
Flexible to -40° F (-40° C) Lower -70° F (-57° C)
Water Vapor Permeability Dry Cup. Perm-In .10 ASTM E 96
Water Absorption % weight gain 5% ASTM D 1056
Ozone Resistance Pass ASTM D 1171
Chemical/ Solvent Resistance Good
Mildew Resistance/Air Erosion Pass UL 181
UV Weather Resistance Pass QUV Chamber Test
Thickness Recommendations* - To Control Condensation
Pipe Size Line Temp Line Temp Line Temp Line Temp
50°F 10°C 35°F 2°C 0°F -18°C -20°F -29°C
Normal Conditions (Max 85°F, 29°C - 70% R.H.)
3/8" I.D. thru 1-3/8" I.D. 3/8" 10 mm 1/2" 13 mm 3/4" 19 mm 1" 25 mm
Over 1-3/8" thru 3" IPS 3/8" 10 mm 1/2" 13 mm 1" 25 mm 1" 25 mm
Over 3" IPS thru 4" IPS** 1/2" 13 mm 1/2" 13 mm 1" 25 mm 1-1/4" 32 mm
Over 4" IPS 1/2" 13 mm 3/4" 19 mm 1" 25 mm 1-1/4" 32 mm
Mild Conditions (Max 80°F, 26°C - 50% R.H.)
3/8" I.D. thru 2-1/8" I.D. 3/8" 10 mm 3/8" 10 mm 1/2" 13 mm 1/2" 13 mm
Over 2-1/8" thru 3" IPS 3/8" 10 mm 3/8" 10 mm 1/2" 13 mm 3/4" 19 mm
Over 3" IPS thru 4" IPS** 1/2" 13 mm 1/2" 13 mm 3/4" 19 mm 3/4" 19 mm
Over 4" IPS 1/2" 13 mm 1/2" 13 mm 3/4" 19 mm 3/4" 19 mm
Severe Conditions (Max 90°F, 32°C - 80% RH)
3/8" I.D. thru 1-1/8" I.D. 3/4" 19 mm 3/4" 19 mm 1-1/4" 32 mm 1-1/4" 32 mm
Over 1-1/8" I.D. thru 4" IPS 3/4" 19 mm 1" 25 mm 1-1/2" 38 mm 1-1/2" 38 mm
Over 4" IPS 3/4" 19 mm 1-1/4" 32 mm 1-3/4" 44 mm 2" 50 mm
*INSUL-TUBE® 180 in thickness noted within the specified temperature ranges will prevent condensation on indoor piping under design conditions defined below.
Thickness recommendations above 1" can be sleeved to achieve thickness desired.
Normal: Maximum severity of indoor conditions seldom exceed 85°F (29°C) and 70% R.H. in United States.
Mild: Typical conditions are most air-conditioned spaces and arid climates.
Severe: Generally found in areas where excessive moisture is introduced or in poorly ventilated areas where the temperature may be depressed below the ambient.
Under conditions of high humidity, additional thickness of insulation may be required.
**Available: Nom. 1/2" or Nom. 3/4" thickness only.
INSUL-TUBE® 180 “R� Values per square foot
Pipe O.D. or Nominal R Value R Value R Value R Value
Insulation I.D. 3/8" (10 mm) Wall 1/2" (13 mm) Wall 3/4" (19 mm) Wall 1� (25 mm) Wall
3/8" 10 mm 2.5 3.0 5.1 —â??
1/2" 13 mm 2.4 3.1 5.1 —â??
5/8" 16 mm 2.4 3.1 5.2 6.7
3/4" 19 mm 2.3 3.1 5.1 6.5
7/8" 22 mm 2.2 3.1 5.1 6.5
1-1/8" 29 mm 2.1 3.1 5.3 6.8
1-3/8" 35 mm 1.6 3.1 5.1 6.7
1-5/8" 41 mm 2.2 3.1 4.9 6.4
1-1/2" IPS 48 mm 2.3 2.9 4.7 6.9
2-1/8" 54 mm 2.2 3.0 4.7 6.3
2" IPS 60 mm 2.2 3.0 4.6 6.2
2-1/2" IPS 64 mm 2.2 3.0 4.5 6.0
2-5/8" 67 mm 2.2 3.0 4.5 6.0
3-1/8" 79 mm 2.2 2.9 4.4 5.9
3" IPS 89 mm 2.2 2.9 4.4 5.8
3-5/8" 92 mm 2.1 2.9 4.4 5.8
3-1/2" IPS 102 mm 2.1 2.9 4.3 5.7
4-1/8" 105 mm 2.1 2.9 4.3 5.7
4" IPS 114 mm —â?? 4.3 5.8 7.2
5" IPS 140 mm —â?? 4.4 5.9 7.2
6" IPS 168 mm —â?? 4.6 6.1 7.4
8" IPS 219 mm —â?? 4.1 5.4 —â??
Note: “R� factors were calculated using a K factor of .264 (75°F, 24°C mean temp.) and nominal wall thickness is each case.
Lower operating temperatures will result in improved R values. Contact RBX Industries, Inc. for specific recommendations.
RBX Industries, Inc., 5221 ValleyPark Drive, Roanoke, VA 24019-3074
phone 800-765-6475 fax 800-656-9465
©February 2003 RBX Industries, Inc. INSUL-TUBE 180, Rubatex and RBX Industries are registered trademarks of RBX Industries, Inc.
Nomaco is a registered trademark of Nomaco Inc. and NOMACO K-FLEX is a trademark of NOMACO K-FLEX. INS-0001-PS-0203
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