Document Nex7zpwVzy0Qee2D1oejdBv0p

444 (Armstrong COOK COMPANY Lancaster, Pennsylvania Insulation Insulation THE DOW CHEMICAL COMPANY i Plastics Sales, Midland, Michigan 445 ARMSTRONG ARMAFLEX PIPE INSULATION for all air-conditioning, refrigeration, and plumbing and heating lines Armstrong Armaflex is a flexible foamed plastic insulation in pipe covering and sheet form. Pipe covering is manufactured in nominal % in., X in., and % in. thicknesses. These thick nesses are calculated to prevent condensation on cold lines within their individual recommended usage ranges at temper? atures down to zero. Armaflex also can be used on heating lines, where it will withstand temperatures to 200 F. On out door installations, consideration should be given to weather proofing. In sheet form, Armaflex is used for insulation of larger pipe sizes and for covering tanks and vessels of any size or shape. The closed cell structure of Armaflex gives it a low k value of 0.28 at 75* F. mean temperature. Armaflex resists deteriora tion, so efficiency remains high in service. The uniformly sized closed cells of Armaflex seal out air and moisture. The result is a vapor transmission rating of less than 0.1 perm. Shrinkage of Armaflex when the inner surface is exposed to temperatures to 200s F. is negligible. Armaflex is only slightly affected by solvents and for all practical purposes is unaffected by oils, common corrosive chemicals, or fungus. The extreme flexibility of Armaflex Pipe Covering and Sheets mokes application very rapid. They can be applied in close quarters. Pipe covering can be slipped onto pipe and tubing prior to its installation or slit and snapped over piping that is already in place. The only sundry material required is Arm strong 520 Adhesive. Scotch Brand #472 Tape may be used to seal Armaflex joints on straight piping. Fittings are insulated with miter cut pieces of covering, quickly cut and assembled on the job, using 520 Adhesive to adhere joints. Physical Properties of Armaflex Pipe Covering Wall thickness--inches (nom) Inside diameter--inches Length of section--feet Sheet Armaflex Size--inches Thickness--inches Thermal conductivity Btu-in./sq ft-hr-*F-kj, k|# Water vapor transmission Perms (Grains-in./sq ft-hr-in.-Hg.) Air transmission--static pressure at 10 in. Hg. cu ft-in./hr-sq ft Water absorption--28 days submer sion--percent by volume Density--Ibs-cu ft Fire rating h.x.k H to3K 30x36 M, X, H, X, X,H less than 0.1 less than 0.03 3.9 pipe covering 7.5 sheets 6.5 self-extinguishing For complete application instructions and specifica tions, write today to Armstrong Cork Company, 5800 Preston Avenue, Lancaster, Pennsylvania. STYROFOAM STOPS MOISTURE, REPELS HEAT Advantages of Styrofoam* as a Low Temperature Pipe Covering (1) Low "k" factor stays low because Styrofoam (a Dow plastic foam) resists water and water vapor. (2) Prevents condensation and dripping. (3) Light, clean, easy to handle, economical to apply. (4) Resists rot, mold, deterioration. (5) Will not split or crack nor is it subject to ice build-up around valves in extreme'cold. ^ USES Pipe covering Wall, floor and ceiling insulation for low temper ature work * Cavity and core walls Insulation-plaster base Refrigerated vehicles Curtain wall panels Perimeter and foundation insulation ENGINEERING DATA THERMAL PROPERTIES Thermal Conductivity (k factor), Btu/(hr) (sq ft) ("F/in.) Linear Thermal Coefficient of Expansion Specific Heat Resistance to Heat (Maximum recommended temperature for continuous use) Average less than 0.28 at mean temperature of 40*F. .00003 to .00004 in./in.*F. between... 0*F. and 80*F. 0.27 Btu/(lb.) (*F.) at 40*F. Styrofoam 22--170*F. Styrofoam 33--160*F. Density Compressive Tensile Strength Shear Strength Flexural Strength Compressive Modulus :S flb/cu ft) psi) PS!) psi) ps>) 1 psi) Styrofoam 22 1.6-2.0 16-32 45-61 27-36 42-61 1200-1700 Styrofoam 33 1.7-2.3 16-38 65-95 30-40 48-99 1500-2000 STYROFOAM and SCORSORD or. tradwaaria of TV. Daw '`Wm* Coapaay Bending Modulus Modulus of Rigidity (psi) (psi) Styrofoam Styrofoam 22 33 1000-1285 1250-1760 700-1000 1000-1300 WATER RESISTANCE PROPERTIES Capillarity None Water absorption (When subjected to 90*F., 90 Less than 0.03 per cent by per cent relative humidity for volume 15 days) Water absorption (When completely submerged Water pick-up only on sur- for one week) face cells less man 0.15 Ib./sq. ft. of areas VAPOR TRANSMISSION When Styrofoam acts as a harrier 1.0-2.0 gmins/(sq ft) (hr) between spaces having different (in. thickness) (in. of Hg. atmospheric conditions vapor pressure difference) ' MANUFACTURERS Styrofomics, In<x, 17 Hawkins Street, Somerville, Mass. CloBrite Products Incorporated, 6415 North California Avenue, Chicago, Illinois Tuffiite, Inc., Ballston Spa, New York Styrp^ Fabricators, 1401 Fairfax Trafficway, Kansas City, Kansas * Robinson Industries, 3051 Curtice Road, Coleman, Michigan * MMM, Incorporated, P.O. Box 968, Portsmouth, Ohio * Kennedy Industries, 4447 Alger Street, Los Angeles, California Fastab Insulation, Inc., 304 Cleveland Transit Building, Cleveland 14, Ohio * Fibrous Glass Products, Inc., Hicksville, L. I., New York Kransco Manufacturing Company, South San Francisco, California Fox further information on Styrofoam in any application write to the dow chemical, comfany. Midland. Michigan, Plastics Sales Department 1941R. We can also give you information on Scorbom*, the new easy-to-apply member of the Styrofoam family specifically designed for perimeter and cavity wall applications. YOU CAN DEPEND ON