Installation Manual

Armaflex Thickness Recommendations

2

For Controlling Outer Insulation Surface Sweating(Based upon available manufactured thicknesses)

Contents:General information

• Armaflex Thickness Recommendations, p.2• Rules for using Armaflex, p.3

Armaflex Tube Installation

• Sweat fittings on new pipe, p.4• Screwed fittings on new pipe, p.4• Armaflex on new piping: the slip-on method, p.5• Armaflex on existing piping: the snap-on method, p.6• Fabricating fitting covers, p.7• Using miter boxes, p.8

Armaflex Sheet Installation & Templates

• Using Armaflex sheet insulation on pipes, p.9• Application to fittings, p.9

• Template numbers and descriptions, p.11• Armaflex sheet on 90° elbows, p.13• Armaflex sheet on flanged valve fitting

covers, p.14• Armaflex sheet on metal ductwork, p.16• ArmaTuff on exterior ductwork, p.17

Pipe Hangers

• Using Armafix IPH or NPH at pipe hanger locations, p.18• Traditional method for pipe hanger locations, p.18

Applying Self Sealing Armaflex

• AP Armaflex SS tube, p.19• AP Armaflex SA sheet and roll, p.19

Armaflex Pipe Insulation Thickness RecommendationsFor Controlling Outer Insulation Surface Condensation(Based upon available manufactured thicknesses)

Pipe Size Line Temperatures

50°F (10°C) 35°F (2°C) 0°F (–18°C) –20°F (–29°C)

BASED ON NORMAL DESIGN CONDITIONS*3/8″ ID through 1-1/8″ ID (10mm–28mm) Nom 3/8″ (10mm) Nom 1/2″ (13mm) Nom 3/4″ (19mm) Nom 1″ (25mm)Over 1-1/8″ ID through 2-1/8″ ID (28mm–54mm) Nom 3/8″ (10mm) Nom 1/2″ (13mm) Nom 1″ (25mm) Nom 1″ (25mm)Over 2-1/8″ ID through 2-5/8″ ID (54mm–65mm) Nom 3/8″ (10mm) Nom 1/2″ (13mm) Nom 1″ (25mm) Nom 1-1/4″ (32mm)Over 2-5/8″ ID through 6″ IPS (65mm–168mm) Nom 1/2″ (13mm) Nom 3/4″ (19mm) Nom 1″ (25mm) Nom 1-1/4″ (32mm)

BASED ON MILD DESIGN CONDITIONS**3/8″ ID through 2-5/8″ ID (10mm–65mm) Nom 3/8″ (10mm) Nom 3/8″ (10mm) Nom 1/2″ (13mm) Nom 3/4″ (19mm)Over 2-5/8″ ID through 6″ IPS (65mm–168mm) Nom 1/2″ (13mm) Nom 1/2″ (13mm) Nom 1/2″ (13mm) Nom 3/4″ (19mm)

BASED ON SEVERE DESIGN CONDITIONS***3/8″ ID through 1-5/8″ ID (10mm–40mm) Nom 3/4″ (19mm) Nom 1″ (25mm) Nom 1-1/2″ (38mm) Nom 1-1/2″ (38mm)Over 1-5/8″ ID through 3-5/8″ ID (40mm–90mm) Nom 3/4″ (19mm) Nom 1″ (25mm) Nom 1-1/2″ (38mm) Nom 1-3/4″ (44mm)Over 3-5/8″ ID through 6″ IPS (90mm–168mm) Nom 3/4″ (19mm) Nom 1″ (25mm) Nom 1-1/2″ (38mm) Nom 2″ (50mm)

NOTE: Thicknesses greater than 1″ (25mm) are multiple-layer applications.

*BASED ON NORMAL DESIGN CONDITIONS AP Armaflex in the thicknesses noted and within the specified temperature ranges will control outer insulation surfacecondensation indoors under normal design conditions, a maximum severity of 85°F (29°C) and 70% RH. Armacell research and field experience indicate thatindoor conditions anywhere in the United States seldom exceed this degree of severity.

**BASED ON MILD DESIGN CONDITIONS AP Armaflex in the thicknesses noted and within the specified temperature ranges will control outer insulation surfacecondensation indoors under mild design conditions, a maximum severity of 80°F (27°C) and 50% RH. Typical of these conditions are most air-conditioned spacesand arid climates.

***BASED ON SEVERE DESIGN CONDITIONS AP Armaflex in the thicknesses noted and within the specified temperature ranges will control outer insulation surfacecondensation indoors under severe design conditions, a maximum severity of 90°F (32°C) and 80% RH. Typical of these conditions are indoor areas in whichexcessive moisture is introduced or in poorly ventilated confined areas where the temperature may be depressed below ambient.

Armaflex Sheet/Roll Insulation Thickness RecommendationsFor Controlling Outer Insulation Surface Condensation

Ducts—Tanks—Vessels—EquipmentMetal Surface Temperature

50°F (10°C) 35°F (2°C) 0°F (–18°C)

BASED ON NORMAL DESIGN CONDITIONS 3/8″ (10mm) 3/4″ (19mm) 1-1/2″ (38mm)AP Armaflex in the thicknesses noted and within the specified temperature ranges will control outer insulation surface condensation indoors under normal design conditions, a maximum Nom. Nom. Nom.severity of 85°F (29°C) and 70% RH. Armacell research and field experience indicate that indoor conditions anywhere in the United States seldom exceed this degree of severity.

BASED ON MILD DESIGN CONDITIONS 1/8″ (3mm) 1/4″ (6mm) 1/2″ (13mm)AP Armaflex in the thicknesses noted and within the specified temperature ranges will control outer insulation surface condensation indoors under mild design conditions, a maximum Nom. Nom. Nom.severity of 80°F (27°C) and 50% RH. Typical of these conditions are most air-conditioned spaces and arid climates.

BASED ON SEVERE DESIGN CONDITIONS 1″ (25mm) 1-1/2″ (38mm) 2″ (50mm)AP Armaflex in the thicknesses noted and within the specified temperature ranges will control outer insulation surface condensation indoors under severe design conditions, a maximum Nom. Nom. Nom.severity of 90°F (32°C) and 80% RH. Typical of these conditions are indoor areas in which excessive moisture is introduced or in poorly ventilated confined areas where the temperature may be depressed below ambient.

The data and information are provided as a technical service and are subject to change without notice.

1. To the contractor ...

Armaflex Insulations are ideal forsuch mechanical systems asplumbing, hot-water heating, dualtemperature piping, air condition-ing, and refrigeration.

Armaflex Insulations are two-pur-pose materials. They control con-densation drip from cold pipingoperating at temperatures downto –297˚F when used in recom-mended thicknesses. They saveheat on hot pipes operating attemperatures up to 220˚F. APArmaflex SS may be used onlines operating up to 180˚F.

How well Armaflex does thesejobs depends on how good a jobyou do of installing the insulation.By following the simple directionsin this booklet, you can do a first-class Armaflex installation jobevery time.

Installation InstructionsRule 1.Apply Armaflex Insulations onlywhen pipes are clean, dry andunheated.

Rule 2.DO NOT COMPRESS Armaflexat joists, studs, columns, ducts,etc. This is important becauseany insulation loses some of itsinsulation value if it is com-pressed. On cold pipes, conden-sation may occur where the insu-lation is compressed.

Rule 3.DO NOT CROWD Armaflex-cov-ered pipes. Space piping to allowfor free circulation of air. Airmovement is an extra safeguardagainst condensation on coldpipes, especially in hot, humidweather.

Rule 4.NEVER STRETCH ARMAFLEX.Always use the proper-sizeArmaflex for a particular sizepipe. Do not stretch it over thepipe. Use pieces of Armaflex thatare at least as long as the sec-tion of pipe to be insulated. Butt-end joints can be made withoutstretching the lengths ofArmaflex, and there will be nostraining of the surface andjoints.

Rule 5.Proper sealing of all pipe insula-tion is important to minimize heatloss and control condensation.On cold lines, open, pipe insula-tion joints may allow the forma-tion of condensate drip or con-tributing to possible pipe or tub-ing corrosion. All Armaflex insula-tion joints must be sealed asshown in our insulation instruc-tions.

Note: Armaflex insulation prod-ucts must be installed accordingto this guide. Proper installationis required to assure Armaflexinsulation performance.

3

Installation:

Installation:

4

Sweat fittings on new pipe

1. Before fitting is soldered, pushthe Armaflex back on the tubing,and hold in place withclamps applied to the tubing. Toavoid damage to the insulation,tubing and fitting temperaturesmust not exceed the upper uselimit of 220˚F. Remove clampsafter fitting has been solderedand has cooled. Note that sweatfittings are insulated with thesame size Armaflex as used onthe tubing.

Note: Apply clamps to tubing, notto Armaflex. Insulate heavybronze fittings with fitting coversfabricated and applied as direct-ed under screwed-type fittingsbelow. The solvent in 520 and520 BLV Adhesive is flammable,so take precautions during sol-dering. Always close the contain-er tightly when not using; keep itaway from heat or sparks. (Readthe cautions on the label.)

2. Fabricate fitting cover fromproperly miter-cut pieces. Afteradhesive has dried, carefully

slit the fitting cover. SeeSection 4 on page 7,Fabricating Fitting Covers.

3. Snap fitting cover in place overthe fitting.

4. After the line has been tested, apply brush coating of520 or 520 BLV Adhesive to alljoint surfaces.

5. Allow the adhesive to dry untildry to the touch but tackyunder slight pressure beforejoining surfaces.

1 3 4 52

6. Armaflex is slipped over theline and butted tightly againstthe fitting.

7. Fabricate fitting covers frommiter-cut pieces of Armaflex.Slit the completed cover, andsnap it in position over the fit-ting. (Fitting cover should over-lap the pipe insulation by atleast one inch.)

8. After the line has been tested,complete the application bycementing the slit joint of thefitting cover with 520 or 520BLV Adhesive. When adhesivehas become tacky to thetouch, press the joint firmlytogether. Also, cement the 1″overlap with 520 or 520 BLVAdhesive by forcing the brushbetween the two surfaces.

Screwed fittings onnew pipe

Insulate screwed fittings withsleeve-type fitting covers madeup from Armaflex Pipe Insulationhaving an inside diameter largeenough to overlap the insulationon the straight piping next to thefitting by at least 1″. See chart onpage 8 for sleeving sizes.

876

Please note: For installing selfsealing AP Armaflex SS, refer top.19.

Installation:

5

2. Armaflex on new piping: the slip-onmethod

The slip-on method is used whenyou can insulate new pipingbefore it goes up or while it’sbeing connected.

1. All you do is slip the pipe insu-lation over the pipe or coppertubing. The inside surface ofArmaflex Pipe Insulation iscoated with a powdered lubri-cant, making it easy to slip theinsulation over the pipe.

(note: Small amounts of powdered lubricant may enter open ends of pipe or tubing. This dust must be kept out ofrefrigeration systems. Plug open ends ofpipe before slipping on Armaflex PipeInsulation.)

2. Since Armaflex tubing is flexi-ble, it will follow bends in tub-ing and can be slipped rightover bent tubing, 45° sweatells, and couplings.

3. At 90° sweat ells, cut the insu-lation, and butt against eachside of the fitting. A fittingcover will be installed laterover these fittings. SeeSection 4 on page 7,Fabricating Fitting Covers.

4. Use a length of Armaflex aslong as or slightly longer thanthe section of piping to be cov-ered. NEVER STRETCHARMAFLEX.

5. Apply brush coating of 520 or520 BLV Adhesive to both buttends to be joined, since this isa contact-type adhesive.

6. Allow the adhesive to set untildry to the touch but tackyunder slight pressure beforejoining surfaces.

1 2

3

4

5 6

Please note: For installing selfsealing AP Armaflex SS, refer top.19.

Installation:

6

3. Armaflex on existing piping: the snap-on method

The snap-on method is usedwhen pipe or copper tubing isinsulated after it has beeninstalled and connected.

Armaflex pipe insulation1. With unslit tubular Armaflex

Pipe Insulation, use a sharpknife to slit the Armaflexlengthwise on one side. Foroval tubes, slit on flat sideonly.

2. Snap the insulation over the pipe.

3. Brush-coat both slit surfaceswith Armaflex 520 or 520 BLVAdhesive alternating sides foreven drying time. Push theinsulation down over pipe tohold adhesive-coated surfacesapart while the adhesive dries.

4. Allow the adhesive to dry untildry to the touch but tackyunder slight pressure beforejoining surfaces. Test with backof fingernails as shown.

520 or 520 BLV Adhesivebonds instantly on contact, sopieces must be put togetheraccurately. Press joints togeth-er firmly, making sure that youget a bond all the way throughthe joint, not just at the outeredges.

5. If the insulation should becomestuck to the pipe after applyingadhesive, break the insulationloose by running a finger downthe pipe as shown in the illus-tration.

6. When the adhesive has air-dried, apply moderate pres-sure to entire joint to assure avapor-tight bond.

7. In double-layer work whenusing the snap-on method,apply Armaflex with side andend joints staggered where

possible.

1

3

2

4

5

6

7

When hot-water piping is being insulated, allow a minimum of 36hours before circulating hot waterinto insulated lines having adhesive-bonded slit seams.

Before using 520 or 520 BLVAdhesive, read the precautionaryinformation printed on the canlabel. (Also see “520 or 520 BLVAdhesive” submittal sheet)

Please note: For installing selfsealing AP Armaflex SS, refer top.19.

7

Installation:

4. Fabricating fitting covers

This section includes:a. Using miter boxes, pg 8b. Using Armaflex Sheet on

pipes, pgs 9 & 10b.1. Armaflex Templates, pg 11b.2. Yield of Armaflex Sheet,pgs 11-12

c. Armaflex Sheet on 90° Elbows,pg 13

d. Armaflex Sheet on FlangedValve Fitting Covers, pgs 14-15

Use unslit Armaflex whenmaking up covers for fittings.Make up a group of covers atone time instead of cutting andassembling each one as youcome to it.

Sweat and screwed fittingsOn sweat fittings, use the

same size Armaflex for coversthat you use to insulate the tub-ing.

On screwed fittings, make upfitting covers from Armaflex withan inside diameter large enoughto overlap the insulation on thepipe next to the fitting. Make thefitting cover long enough to over-lap pipe insulation by a minimumof one inch on each side. (Seesleeving sizes on page 8.)

Large-size pipesOn large-size weld pipes (3″

IPS and above) and screwed ironpipes (2″, 2-1/2″ and 3″), fittingcovers can be made fromArmaflex Sheet Insulation.Armaflex Sheet is available in 36″x 48″ sheets or 4′-wide rolls in avariety of thicknesses andlengths. Fitting covers for

Victaulic Couplings can also bemade from Armaflex SheetInsulation. Sheets can be cuteasily and accurately, using asharp knife and a template. (Seepage 11 for template size andpattern number.)

Tight joints mean atrouble-free job

Important: Use Armaflex 520 or520 BLV Adhesive only.

Armaflex 520 or 520 BLVAdhesives are vapor-retarder adhesives developed for use with Armaflex Insulations. Use itproperly, and you’ll have jointsthat stay tight.

Tools for making fittingcovers1. 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 beused on smaller-size pipe fit-tings.

2. Sheet TemplatesFor screwed iron pipe fittings2″, 2-1/2″ and 3″ IPS and forlong-radius weld iron pipe fit-tings 3″ IPS to 10″ IPS, useArmaflex Sheet Templates.These sheet templates take allthe guesswork out of insulat-ing 45˚ ell, 90˚ ell, and tee fit-tings. Available from Armacell,each template set comes withcomplete application instruc-tions. (See pages 11-12 fordetails.)

3. Armaflex Sheet Templates arealso available to make fittingcovers for Victaulic Couplings.The fitting cover templates areavailable for pipe sizes from3/4″ IPS to 12″ IPS.

4. Use carton template on theside of all 6′ tube cartons, tomake fitting covers for 45, 90,ells, tees.

1

2

3

Installation:

8

4.a. Using miter boxes

1. Use a sharp, non-serratededge knife. Note the long knifelength shown in photo.

2. On smaller pieces of ArmaflexPipe Insulation, brace thepiece to be cut with your handas illustrated. This will insure aclean and accurate cut.

3. The illustrations show sleeve-type fitting covers. The samefabrication steps may be usedfor copper tube fittings.

▲

(TEE & VALUE)520 Adhesive

▲ 45° miter cuts

▲ ▲

Length▲

▲

▲ 1/3 ▲

▲ 2/3 ▲

520 Adhesive

▲

▲

Length

45° miter cut for 90° ell

▲

▲

▲

Length

45° miter cut for 90° ell

▲▲

.83 x OD ▲

▲

520 Adhesive

▲

(ALTERNATIVE 90 ELL)

221/2° miter cut for 45° ell

520 Adhesive

▲

(45° ELBOWS)

(CROSS)

520 Adhesive

Length ▲

▲

▲

▲

45° miter cuts

▲ ▲1/2 1/2▲ ▲

▲ ▲

▲

520 Adhesive

(LATERAL WYE)

▲

▲

▲

221/2° miter cut

▲

11/2 x OD▲

▲ 1/5° x OD

▲

671/2° miter cut

▲

▲

11/5° x OD 1/5° x OD

equal distance

671/2° miter cut

▲

▲

▲

▲

▲

▲

▲

▲

221/2° miter cut

▲

▲

†Based on average wall thicknesses developed from factory tolerances.•May require cutting.

✰Available Nom 1/2″ or Nom 3/4″ thickness only.

ARMAFLEX SLEEVING SIZES

CopperTubing Sleeving Sizes†

NomArmaflex Iron Nom Nom NomInsulation Nom OD Pipe 3/8″ 1/2″ 3/4″

Sizes Size Size Size Wall Wall Wall(in.) (in.) (in.) (in.) (in.) (in.) (in.)

3/8 ID 1/4 3/8 — 1-1/8 ID 1-3/8 ID 1-5/8 ID

1/2 ID 3/8 1/2 1/4 1-3/8 ID 1-3/8 ID 1-1/2 IPS

5/8 ID 1/2 5/8 3/8 1-3/8 ID 1-5/8 ID 2-1/8 ID

3/4 ID 5/8 3/4 — 1-5/8 ID 1-1/2 IPS 2 IPS

7/8 ID 3/4 7/8 1/2 1-5/8 ID 1-1/2 IPS 2 IPS

3/4 IPS — — 3/4 1-1/2 IPS 2-1/8 ID 2-1/2 IPS

1-1/8 ID 1 1-1/8 — 1-1/2 IPS 2-1/8 ID 2-1/2 IPS

1-3/8 ID 1-1/4 1-3/8 1 2-1/8 ID 2 IPS 3-1/8 ID

1-5/8 ID 1-1/2 1-5/8 1-1/4 2 IPS 2-1/2 IPS 3-5/8 ID

1-1/2 IPS — — 1-1/2 2-1/2 IPS✰ 3-1/8 ID 3-5/8 ID

2-1/8 ID 2 2-1/8 — 2-1/2 IPS✰ 3-5/8 ID• 4-1/8 ID•

2 IPS — — 2 3-5/8 ID•✰ 3-5/8 ID 4-1/8 ID

2-5/8 ID 2-1/2 2-5/8 — 3-5/8 ID✰ 4-1/8 ID• 4 IPS•

2-1/2 IPS — — 2-1/2 — 4-1/8 ID 4 IPS

3-1/8 ID 3 3-1/8 — — 4 IPS• 5 IPS•

3-5/8 ID 3-1/2 3-5/8 3 — 5 IPS• 5 IPS•

4-1/8 ID 4 4-1/8 3-1/2 — 5 IPS• Sheet

4 IPS — — 4 — Sheet Sheet

Installation:

9

4.b. Using Armaflex sheet insulation on pipes

Application to pipes

1. Apply Armaflex SheetInsulation on pipes larger than5″ IPS. Cut the sheet insula-tion to proper width, permittingit to fit loosely without stretch-ing around the pipe. (See pgs11-12.) The fabrication mustbe done at the job site, at thesame ambient conditions asthe application.

2. Brush-coat both surfaces ofthe lengthwise seam with 520or 520 BLV Adhesive. Allowthe adhesive to dry until tackyto the touch under slight pres-sure before joining surfaces.Wrap the sheet around thepipe, and seal the seam bypressing the surfaces firmlytogether. Join butt jointsbetween individual sectionsusing 520 or 520 BLVAdhesive. On horizontal pipeslarger than 12″ IPS, adhereinsulation on lower one-third.

Application to fittings

3. Fitting covers are easily made,using templates designed spe-cially for screwed fittings 2″, 2-1/2″ and 3″ and long-radiusweld fittings from 3″ to 10″IPS. (See size chart, pg 11.)

Note: Templates should betraced on stiff paper, sheetmetal or hardboard and cut out tomake reusable patterns.

4. Since each template for 45˚and 90˚ ells is shown as asymmetrical half of the full fit-

ting cover, the complete fittingcover is formed by adheringtwo halves together at the longouter arc. Coat both surfaceswith 520 or 520 BLV Adhesive.Allow the adhesive to dry untildry to the touch but tackyunder slight pressure beforejoining surfaces. Then seal theseam by pressing the surfacesfirmly together throughout. Todo

this, press the adhesive jointon the rough side and thensnap the cover inside out andpress the joint on the smoothskin side. (The tee template isa symmetrical half, but, in thiscase, both halves are laid outtogether to form the completeoutline of the fitting cover.)

1 3

2 4

Please note: For installing selfadhering SA Armaflex sheets androlls, refer to p.19.

Installation:

10

5. Snap the formed cover in placeover the fitting. Adhere themating surfaces of the innerarc joint with 520 or 520 BLVAdhesive. Join the straightpipe covering to the fittingcover, making sure to coatboth the pipe-section butt sur-face and the fitting-cover buttsurface.

Note: On screwed fittings, selectthe proper template from section4.b.1., page 11. Notice that thescrewed fitting cover templatesallow for the 1″ minimum overlapon the straight pipe next to thefitting. Remember to cement this1″ overlap with 520 or 520 BLVAdhesive by forcing the brushbetween the two surfaces.

6. Allow the adhesive to dry untildry to the touch but tackyunder slight pressure beforejoining surfaces. Press sur-faces firmly together to seal.

Application to VictaulicCouplings

Make two donuts, and place onboth sides of the VictaulicCoupling. Complete the fittingcover by gluing the circumferen-tial strip of sheet insulation overthe two donuts.

▲

45° ELL

CIRCUMFERENCE

TEMPLATE FORVICTAULICCOUPLING

90° ELL

TEE

ARMAFLEXDONUTS

▲

▲

65

Please note: For installing selfadhering SA Armaflex sheets androlls, refer to p.19.

Installation:

11

SCREWEDPipeSize 3/8″ 1/2″ 3/4″

IPS 45˚ 90˚ T 45˚ 90˚ T 45˚ 90˚ T

2" • • • • • • • • •

2-1/2″ • • • • • •

3" • • • • • •

VICTAULIC COUPLINGSPipeSize 3/8″ 1/2″ 3/4″ 1″3/4″ • • •1″ • • •1-1/4″ • • •1-1/2″ • • •2″ • • •2-1/2″ • • •3″ • • •3-1/2″ • • •4″ • • •5″ • • •6″ • • •8″ • • •10″ • • •12″ • • •

WELDPipeSize 3/8″ 1/2″ 3/4″ 1″

IPS 45˚ 90˚ T 45˚ 90˚ T 45˚ 90˚ T 45˚ 90˚ T

3″ • • • • • • • • •

3-1/2″ • • • • • • • • •

4″ • • • • • • • • •

5″ • • • • • • • • •

6″ • • • • • • • • •

8″ • • • • • • • • •

10″ • • • • • • • • •

Templatenumber anddescription

No. AT Set AScrewed 45˚ Elbows■ 3/8″—1/2″—3/4″ Walls■ 2″, 2-1/2″, 3″ IPS

No. AT Set BScrewed 90˚ Elbows■ 3/8″—1/2″—3/4″ Walls■ 2″, 2-1/2″, 3″ IPS

No. AT Set CScrewed Tees■ 3/8″—1/2″—3/4″ Walls■ 2″, 2-1/2″, 3″ IPS

No. AT Set DWeld 45˚ Long-Radius Elbows■ 1/2″ Wall■ 3″ IPS thru 10″ IPS

No. AT Set EWeld 45˚ Long-Radius Elbows■ 3/4″ Wall■ 3″ IPS thru 10″ IPS

No. AT Set FWeld 90˚ Long-Radius Elbows■ 1/2″ Wall■ 3″ IPS thru 10″ IPS

No. AT Set GWeld 90˚ Long-Radius Elbows■ 3/4″ Wall■ 3″ IPS thru 10″ IPS

No. AT Set HWeld Tees■ 1/2″ Wall■ 3″ IPS thru 10″ IPS

No. AT Set IWeld Tees■ 3/4″ Wall■ 3″ IPS thru 10″ IPS

No. AT Set JWeld Tees■ 1″ Wall■ 3″ IPS thru 10″ IPS

No. AT Set KWeld 45˚ Long-Radius Elbows■ 1″ Wall■ 3″ IPS thru 10″ IPS

No. AT Set LWeld 90˚ Long-Radius Elbows■ 1″ Wall■ 3″ IPS thru 10″ IPS

4.b.2. yields of ...4.b.1 Templates are availablefor screwed and long-radiusweld fittings

Templates for the Iron Pipe Sizes ShownBelow in 3/8″, 1/2″ and 3/4″ Armaflex:

There are twelve template sheets—order fromArmacell. Templates for Victaulic Couplingsand standard grooved end fittings are alsoavailable.

... AP ARMAFLEX SHEET ASPIPE INSULATION

Insula- Insulationtion Width ″

Pipe Thick- (Pipe Sheet LF Drop-Size ness Circum.) Length Sheet Off

3″ 1/2 13-1/2 36 9 7-1/2IPS 3/4 14-5/8 36 9 4-1/8

1 15-5/8 36 9 1-1/8

3-1/2″ 1/2 15-1/8 36 9 2-5/8IPS 3/4 16-1/8 48 8 3-3/4

1 17-1/8 48 8 1-3/4

4″ 1/2 16-5/8 48 8 2-3/4IPS 3/4 17-3/4 48 8 1/2

1 18-3/4 36 6 10-1/2

5″ 1/2 20 36 6 8IPS 3/4 21-1/8 36 6 5-3/4

1 22-1/8 36 6 3-3/41-1/2 25-3/8 48 4 10-5/8

6″ 1/2 23-3/8 36 6 1-1/4IPS 3/4 24-1/2 48 4 11-1/2

1 25-3/8 48 4 10-5/81-1/2 28-1/2 48 4 7-1/2

8″ 1/2 29-5/8 48 4 6-3/8IPS 3/4 30-3/4 48 4 5-1/4

1 31-3/4 48 4 4-1/41-1/2 34-7/8 48 4 1-1/8

10″ 1/2 36-1/4 36 3 11-3/4IPS 3/4 37-3/8 36 3 10-5/8

1 38-3/8 36 3 9-5/81-1/2 41-1/2 36 3 6-1/2

12″ 1/2 42-5/8 36 3 5-3/8IPS 3/4 43-5/8 36 3 4-3/8

1 44-5/8 36 3 3-3/8

14″ 1/2 46-1/2 36 3 1-1/2IPS 3/4 47-5/8 36 3 3/8

For jobsite application sizing. Not intended forshop prefabrication.Yield of Armaflex Sheet (36″ x 48″) when usedon various pipe sizes.All dimensions are in inches.

Installation:

12

Yields of ... 4.c. measuring ...

Throat Meas.Half

CircumferencePlus Throat Meas.

PipeSizeOD ″

PipeOD ″

SheetThickness

R2R1

ShortRadius

LongRadius

ShortRadius

LongRadius

3 3-1/2 1/2 1-1/4 2-3/4 8 9-1/23 3-1/2 3/4 1-1/4 2-3/4 8-1/2 103 3-1/2 1 1-1/4 2-3/4 9 10-1/2

3-1/2 4 1/2 1-1/2 3-1/4 9 10-3/43-1/2 4 3/4 1-1/2 3-1/4 9-1/2 11-1/43-1/2 4 1 1-1/2 3-1/4 10 11-3/4

4 4-1/2 1/2 1-3/4 3-3/4 10-1/8 12-1/84 4-1/2 3/4 1-3/4 3-3/4 10-5/8 12-5/84 4-1/2 1 1-3/4 3-3/4 11-1/8 13-1/8

5 5-9/16 1/2 2-1/4 4-3/4 12-1/4 14-3/45 5-9/16 3/4 2-1/4 4-3/4 12-3/4 15-1/45 5-9/16 1 2-1/4 4-3/4 13-1/4 15-3/4

6 6-5/8 1/2 2-3/4 5-5/8 14-1/2 17-1/46 6-5/8 3/4 2-3/4 5-5/8 15 17-3/46 6-5/8 1 2-3/4 5-5/8 15-1/2 18-1/4

8 8-5/8 1/2 3-3/4 7-5/8 18-1/2 22-3/88 8-5/8 3/4 3-3/4 7-5/8 19 238 8-5/8 1 3-3/4 7-5/8 19-1/2 23-3/8

10 10-3/4 1/2 4-5/8 9-5/8 22-3/4 27-3/410 10-3/4 3/4 4-5/8 9-5/8 23-1/4 28-1/410 10-3/4 1 4-5/8 9-5/8 23-3/4 28-3/4

12 12-3/4 1/2 5-5/8 11-5/8 26-7/8 32-7/812 12-3/4 3/4 5-5/8 11-5/8 27-3/8 33-3/812 12-3/4 1 5-5/8 11-5/8 27-7/8 33-7/8

14 14 1/2 7 14 30-1/4 37-1/414 14 3/4 7 14 30-3/4 37-3/414 14 1 7 14 31-1/4 38-1/4

16 16 1/2 8 16 34-3/8 42-3/816 16 3/4 8 16 34-7/8 42-7/816 16 1 8 16 35-3/8 43-3/8

18 18 1/2 9 18 38-1/2 47-1/218 18 3/4 9 18 39 4818 18 1 9 18 39-1/2 48-1/2

20 20 1/2 10 20 42-5/8 52-5/820 20 3/4 10 20 43-1/8 53-1/820 20 1 10 20 43-5/8 53-5/8

24 24 1/2 12 24 51 6324 24 3/4 12 24 51-1/2 63-1/224 24 1 12 24 52 64

3″ IPS 1/2 13-1/2 70 62 2483/4 14-5/8 50 41 1641 15-5/8 35 26 104

3-1/2″ IPS 1/2 15-1/8 70 55 2203/4 16-1/8 50 37 1481 17-1/8 35 24 96

4″ IPS 1/2 16-5/8 70 50 2003/4 17-3/4 50 33 1321 18-3/4 35 22 88

5″ IPS 1/2 20 70 42 1683/4 21-1/8 50 28 1121 22-1/8 35 18 721-1/2 25-3/8 25 11 44

6″ IPS 1/2 23-3/8 70 35 1403/4 24-1/2 50 24 961 25-3/8 35 16 641-1/2 28-1/2 25 10 40

8″ IPS 1/2 29-5/8 70 28 1123/4 30-3/4 50 19 761 31-3/4 35 13 521-1/2 34-7/8 25 8 32

10″ IPS 1/2 36-1/4 70 23 923/4 37-3/8 50 16 641 38-3/8 35 10 401-1/2 41-1/2 25 7 28

12″ IPS 1/2 42-5/8 70 19 763/4 43-5/8 50 13 521 44-5/8 35 9 361-1/2 47-3/4 25 6 24

14″ IPS 1/2 46-1/2 70 18 723/4 47-5/8 50 12 481 48-1/2 35 8 321-1/2 51-3/4 25 5 20

16″ IPS 1/2 52-3/4 70 15 603/4 53-3/4 50 11 441 54-3/4 35 7 281-1/2 58 25 5 20

18″ IPS 1/2 59-1/8 70 14 563/4 60 50 10 401 61 35 6 241-1/2 64-1/4 25 4 16

20″ IPS 1/2 65-3/8 70 12 483/4 66-3/8 50 9 361 67-3/8 35 6 241-1/2 70-1/2 25 4 16

24″ IPS 1/2 77-7/8 70 10 403/4 78-7/8 50 7 281 79-7/8 35 5 201-1/2 83-1/8 25 3 12

PIP

ES

IZE

INS

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ICK

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SS

(In.) IN

SU

LATI

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LEN

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*For jobsite application sizing. Not intended for shop fabrication.

... 48-INCH-WIDE AP ARMAFLEX ROLLSAS PIPE INSULATION

... AP ARMAFLEX SHEET FOR WELDED90˚ ELBOW FITTINGS

13

4.c. Armaflex sheet on90° elbows

1. Check the type ell (long orshort radius) and size.

2. Take throat measurement fromchart (R1). Swing an arc fromone corner of the Armaflexsheet, using this measure-ment. Take half circumferenceplus throat measurement fromchart (R2). Using the samecorner of the sheet from whichthe arc R1 was drawn, nowswing an arc, using the meas-urement R2.

3. Cut out on arcs R1 and R2,and use as a pattern for thesecond half of the elbowcover. Adhere outer arcs of thetwo halves with Armaflex 520or 520 BLV Adhesive. As arcsare adhered, the cover will“dish” upward. After seam issqueezed together on oneside, “dish” the cover the oppo-site direction, and squeeze theother side of seam.

4. Put cover around elbow fitting,and adhere inner arcs.

5. Trim ends of fitting coversquare to meet the straightpipe insulation. Place metalband or metal strap around fit-ting cover, and scribe astraight line. Then trim with asharp knife.

Outerarcs

▲ ▲

3

Weld▲

1

▲

▲

R1

Innerarcs

4

▲

▲

Trim toline

5

▲

R2

R1

R1 C/2

C/2

▲▲▲

▲ ▲

▲▲ ▲▲

2

Installation:

Please note: For installing selfadhering SA Armaflex sheets androlls, refer to p.19.

Installation:

14

4.d. Armaflex sheet onflanged valve fitting covers

These instructions are meant toserve as a guide for insulatingflanged valves with Armaflex.Because of the variety in shapeand design of flanged valves,some modifications to theseinstructions may be necessary.

1. Cut Armaflex donuts the samediameter as the flanges, andinstall at pipe/flange and valvestem areas.

2. Use scrap strips of ArmaflexSheet to build the body of thevalve out until it is the samedimension as the OD of theflanges. Adhere the Armaflexstrips directly to the valvebody, using 520 or 520 BLVAdhesive.

3. Use a strip of Armaflex Sheetto wrap around the flange tomeasure the circumference orlength of the Armaflex Sheetneeded for the valve body.

4. Cut Armaflex Sheet for thevalve body.

A. This length is determined asshown in Figure 3.

B. This length is obtained bymeasuring the distancebetween the outer edges ofthe Armaflex donuts which arelocated at the flanges.

C. To fit around the valve throat, asemicircle is cut from eachend of the Armaflex Sheet.The diameter of semicircle isdetermined by the measure-

ment across the throat of thevalve at a point under theflange where the stem enters.

5. The Armaflex Sheet, cut out asshown in Figure 4, is installedaround the valve body and thejoint adhered with 520Adhesive.

At this time, the Armaflex donutsat the ends of the fitting shouldbe sealed to the fitting body insu-lation with 520 Adhesive.

This is accomplished by runningthe adhesive brush between theouter circumference of theArmaflex donut and the inside ofthe ends of the body insulation (awet joint).

Armaflex donuts(Same OD as flange)

▲

1

▲

▲

Build out body

▲

2

▲

Adhered

▲

Adhered▲

54

▲

▲

▲▲ A

B

CC

▲

Circumference(Do not stretch)

3

Installation:

15

6. The last piece of insulationneeded will insulate thebonnet area. This is shownin Figure 6 and is made asshown in

Figure 6A. The measurements forFigure 6A are determined as fol-lows:

C—The overall length is determined by wrapping astrip of Armaflex Sheetaround the bonnet flange(do not stretch) and mark-ing where the ends meet.

L1—This distance is obtained bymeasuring from the outersurface of the Armaflexdonut to the approximatemiddle of the valve bodyinsulation.

L2—This distance is obtained bymeasuring from the outersurface of the Armaflexdonut to the closest surfaceof the valve body insula-tion.

Y—is the difference between L1and L2.

The bonnet insulation of ArmaflexSheet is cut to the size of C x L1.This is then marked to show L2and marked in quarters as shownin Figure 6A. Next the scallopededge of the insulation is deter-mined by swinging an arc fromeach point marked + in Figure6A. The radius of the arc is equalto Y. These arcs are connectedwith straight lines to give asmooth scalloped edge (seeFigure 6B). The scalloped edgeof the insulation must be under-cut (beveled) to correctly meetthe body insulation.

The bonnet insulation may nowbe installed using 520 or 520 BLVAdhesive to bond the two ends,to adhere the bonnet insulation tothe body insulation and to adherethe bonnet insulation around theArmaflex donut. This should com-plete the flange valve fitting.

▲▲ ▲ ▲

▲

▲

▲

▲

▲

▲

▲

▲

▲

▲

▲

▲

▲

▲

▲

▲

C

Y Y

1/4 C 1/4 C1/4 C

L 2L 1

1/4 C

Y

6 B6A

6

Bonnet area

▲L1▲

▲

▲ L2

▲

Installation:

16

Armaflex sheet on metalductwork

The preferred method for squareand rectangular ducts is to cutand fit the sheets, using full cov-erage of Armaflex 520 or 520BLV Adhesive to adhere the insulation.

1. Measure—Sheets should besized with the following appli-cation sequence in mind. Cutthe bottom piece first, makingit the same width as the duct.Then cut the two side pieces,so that they extend down overthe edges of the bottom insu-lation; keep top edges flushwith the top of the duct. Thetop insulation should be sizedso that it extends over the sideinsulations. The fabricationmust be done at the job site,at the same ambient condi-tions as the application.

2. Cut—A sharp knife and astraightedge are the only toolsrequired. Armaflex Sheet cutscleanly.

3. Apply Adhesive—First brush-or roller-coat 520 or 520 BLVAdhesive on the metal ductsurface. Then coat the backside of the Armaflex Sheet,leaving a 1/2″-wide uncoatedborder at butt-edge seams.Allow the adhesive to dry tothe touch but still tacky underslight pressure before joiningsurfaces.

4. Bond—Position the sheet sothat it overlaps the edges ofpreviously installed sheet orsheets by 1/8″. Hold the sheet

in this position, and spot-adhereit in the center. Compress thebutt edges into place for a tightjoint with adjoining sheets. Thenbond the remainder of thesheet by pressing it firmly intoplace. A small hand roller willhelp apply pressure.

5. Adhere Joints—Spread thejoint, and with a small brush,apply 520 or 520 BLVAdhesive to both butt edges.Do not flood joint with adhe-sive. Align carefully for goodappearance, and apply pres-sure to joint.

6. Standing Seams—These canbe insulated with strips ofArmaflex Sheet, generally cutfrom scrap.

7. Alternate Method—Standingseams can also be insulatedwith half sections of ArmaflexPipe Insulation, correspondingin thickness to the sheet usedon the duct surface. Endsshould be miter-cut to insuretight fit when bonded.

8. Apply WB Armaflex Finish—Two coats of WB ArmaflexFinish, a white water-basedlatex enamel coating, are allthat is required to provide aprotective finish for outdoorinstallations. WB ArmaflexFinish can be brush- or roller-applied.

1 32

4 5

7

6

8

Please note: For installing selfadhering SA Armaflex sheets androlls, refer to p.19.

Installation:

17

Flexible ArmaTuff Plus, ArmaTuffWhite or ArmaTuff Silver can beused for all exterior applications.They are practical also for use onexterior ducts, tanks, vessels,large pipes and fittings. Thematerial provides a durable,tough and maintenance-free sur-face. The material is resistant toUV, ozone, acid rain and mostindustrial pollutants. No paintingis required.

The recommended temperatureusage range for ArmaTuff is -70°F to 180°F (-57°C to 82°C).The closed cell structure ofArmaTuff insulation effectivelyretards the flow of water vapor,and it is considered a low trans-mittance vapor retarder. ArmaTuffdoes not require additional vaporretarder. The white surfacereflects heat to reduce energyload.

ArmaTuff is installed usingArmaflex 520 or 520 BLV adhe-sive or with pre-applied pressuresensitive adhesive (PSA). Forapplication to large, flat or curvedmetal surfaces such as ducts,vessels, very large pipes or tanks,full Armaflex 520 or 520 BLVadhesive coverage or productwith PSA is used. The seamsmust be installed in compressionand sealed with Armaflex 520 or520 BLV Adhesive. Cover theseam with 4″ and exposed edgeswith 4″ or 6″ ArmaTuff Seal Tape.Armaflex 520 or 520 BLV adhe-sive is a contact adhesive: there-fore it must be applied to bothsurfaces, allowed to get tacky,and the surfaces are joined withpressure.

Please note: For installing selfadhering SA Armaflex sheets androlls, refer to p.19.

ArmaTuff is designed for installation in above ground applications.Armaflex insulation products must be installed according toInstallation of Armaflex Insulations brochure. Proper installation isrequired to assure Armaflex insulation performance.

Applying Non-Self Adhering ArmaTuff Sheets

1. Always prepare surface bycleaning with denaturedalcohol.

2. Insulate sides first. Applythin, uniform coat ofArmaflex 520 or 520 BLVAdhesive.

3. Roll thin coat of 520 or520 BLV Adhesive toinsulation.

4. Position carefully and applyArmaTuff. Contact adhesive bonds instantly.

5. Apply ArmaTuff to top sur-face, overlapping the sidepieces.

6. Seal and protect exposededges and seams withArmaTuff Seal Tape.

Installation:

18

Pipe hanger locations

At pipe hanger locations wherethe insulation must resist com-pression, supporting devicesmust be used in combination withmetal hanger shields.

Armafix Insulation PipeHangers

Armafix IPH (Insulation PipeHangers) and NPH (NonhalogenInsulation Pipe Hangers) providefast, reliable support for insulatedpipes, an innovative alternative totraditional block and dowel meth-ods. The pre-insulated hangersensure optimum load bearing,protect against thickness com-pression, and prevent condensa-tion gaps that could otherwisecompromise system integrity. Tominimize the movement ofArmaflex, it is recommended thata pair of non-skid pads beadhered to the clamps. In addi-tion, to prevent loosening of theclamps, use of an anti-vibratoryfastener, such as a nylon lockingnut is recommended.

Armafix features a self-adhesiveclosure and an exclusive foam-to-foam bond. The insulated pipehanger is adhered to Armaflexinsulations using Armaflex 520 or520 BLV Adhesive.

If the application is for clevis orsaddle type of pipe hangers it isrecommended that Armaflex Tapebe wrapped around the Armafixprior to placing in the clevis orsaddle hanger.

Easy Application

Application with insulation

Clamp (Friction Fit)

Traditional method

Although timesaving Armafix IPHor NPH is recommended, youcan use traditional supportingdevices such as short lengths ofwood dowels or wood blocks,which are the same thicknessesas the Armaflex. These support-ing devices rest on the metalshield that is installed betweenthe insulation surface and thepipe hanger.

Short wood dowels, used singlyor in multiples, may be used tosupport small-size pipes (seeFigure 1). Larger-size pipes willrequire woodblocks approximate-ly 1″ x 3″ or 1-1/2″ x 4″ by theArmaflex thickness, singly or inmultiples. It is always best tocurve the woodblock surfaces tomatch the curve of the pipe andthe curve of the metal shield.The holes cut into the Armaflex

to receive the supporting devicesare to be undersized so the sup-porting devices fit tightly. Coat thesupporting device with 520 or520 BLV Adhesive, and insertinto the hole in the Armaflexwhile the adhesive is still wet;then coat the outer surface withadhesive as a vapor seal.To elim-inate the possibility of large orheavy pipes from teetering on thewoodblocks, it is recommendedthat 3/4″- or 1″-diameter wooddowels be placed at 4 o’clockand 8 o’clock positions with eachwoodblock (see Figure 2).

FIG. 2

Wood inserts

▲

▲

Wood inserts

▲

Metal shield

▲

FIG. 1

▲

Dowel▲

Woodblock

▲

Dowel

▲

Metal shield

Installation:

19

AP ARMAFLEX SS INSTALLATION INSTRUCTIONS

Make sure pipe is clean and dry.Wipe with a clean rag to removeany contaminants or moisture

Snap the tubing over the pipewith a gentle twisting motion.

The temperature of the air and ofthe insulation should be between40°F (4°C) and 100°F (38°C) at the time of installation

PINCH and gently LIFT the pro-tective release strips from theadhesive surface.

Peel the protective release stripsfrom the adhesive surface in 8″and 12″ intervals. The protectiverelease strips can be removed bygently pulling at an angle.

Seal the 8″ and 12″ intervals by applying firm pressure along thejoint.

Secure butt ends by aligning longi-tudinal seams of the tube. ApplyArmaflex 520 or 520 BLV Adhesiveto both sides of the butt ends. Applyfirm pressure after the adhesivehas been allowed to become tacky.

INSTALLATION OF SELF-ADHERING SHEET AND ROLL INSULATION

Surface to be covered mustbe clean and free of any loosematerials such as rust. A)Prepare surface by cleaningwith rubbing or denaturedalcohol and a clean cloth. B)Remove rust and prepare sur-face with primer and paint

Peel back enough release linerto start

Square off sheet along an edgeor corner.

Press the sheet to the surfacetaking care not to trap any air.

The temperature of the air and of theinsulation should be between 40°F(4°C) and 100°F (38°C) at the time ofinstallation.

Cut with a sharp knife.

Reach behind the Armaflex sheetand peel liner back while press-ing the sheet to the surface.Remove the entire liner piece.

Press firmly. Butt joints requirethe use of compression joints toprevent the possible opening ofseams. Apply Armacell 520 or520 BLV Adhesive to compres-sion joints.

Measure

ARMACELL LLC7600 Oakwood Street Extension • P.O. Box 1038Mebane, NC 27302TEL. 919 304-3846 • FAX 919 304-3847E-MAIL info.us@armacell.comINTERNET www.armacell.com

INSTALLATION MANUAL

© 2006 Armacell LLCPrinted in United States of America000 005 01 06 NA NA

Armacell provides this information as a technical service. To the extent the information is derived from sources other than Armacell, Armacell is substantially, ifnot wholly, relying upon the other source(s) to provide accurate information. Information provided as a result of Armacell's own technical analysis and testing isaccurate to the extent of our knowledge and ability, as of date of printing, using effective standardized methods and procedures. Each user of these products,or information, should perform their own tests to determine the safety, fitness and suitability of the products, or combination of products, for any foreseeablepurposes, applications and uses by the user and by any third party to which the user may convey the products. Since Armacell cannot control the end use ofthis product, Armacell does not guarantee that the user will obtain the same results as published in this document. The data and information are provided as atechnical service and are subject to change without notice.

For any updates on this document please refer to our website.