Document RJN0nBb5G963N3n6wgZE5mdja

Insulation Ehret Magnesia Manufacturing Go. Valley Forge, Pa. ^ Flat and Curved Sheets and Blocks A FULL RANGE OF INSULATIONS FOR HEATING AND VENTILATING The Ehret Company furnishes a broad : range of thermal insulations for practically . every industrial and architectural require ment. For full details of Ehret products, see the Ehret Insulation Manual. Ehret's 85 Per Cent Magnesia Known for nearly half a century in the industrial field, Ehret's 85 per cent Mag nesia Pipe Coverings and Blocks are efficient, economical and they last indefi nitely. Pipe coverings are available in a full range of sizes and thicknesses, and blocks can be furnished in thicknesses up to 4 in. An ideal material for use on heated pipes or surfaces whose tempera tures do not exceed 600 F. Ehret's Enduro For temperatures between 600 F and 2000 F, Ehret's Enduro is admirably suited. Frequently used in combination with Ehret's 85 per cent Magnesia for high temperature work. Available , in pipe coverings and blocks in a full range of sizes and thicknesses. Since Ehret's Enduro is made from a base of pre-calcined diatomaceous earth, it can like Ehret's 85 per cent Magnesia*,depended upon to last indefinitely. Durant Insulated Pipe The illustrations and description on the opposite page should be of especial interest to those who specify or install insulated pipe lines in underground or weatherexposed locations. Ehrel's Heat-Seal U`oo/ Building Insulations Other Ehret Products Included in the line of Ehret insulations are products such as Air Cell Pipe Cover ings, Anti-sweat and Frostproof coverings, Asbestos paper, Standard Hair Felt for cold piping and equipment, Cork Pipe Coverings and Blocks, finishing and insu lating cements, packings and many other insulating and allied products. 1030 Ehret Magnesia Manufacturing Co. \ Insulation EHRET'S DURANT INSULATED PIPE . . for Underground and Outdoor Service This unique system of pipe line protection consists of pipe that is insulated, sealed and protected at our factory, and shipped to the job ready for installation. Pipe lengths can be joined with screwed, flanged or welded fittings, and the system provides protection for expansion bends, joints, valves and similar pipeline appurte nances. Field joints in Durant Insulated Pipe are easy to make, and once made the backfill can be begun and the trench flooded for tamping. Ehret's Durant Insulated Pipe will not crack or leak and moisture or water is permanently excluded by the thick, timedefying layer of high-melting-point asphalt that encloses all parts of the system. Write for the special Ehret D.I.P. folder--it gives full details. Some Outstanding Advantages,of Durant Insulated Pipe: - 1. Permanently waterproof. 2. Elimination of electrolysis and corro sion. 3. Requires no sub-drains as even com plete water submersion does no harm. 4. In multiple lines, individual Durant pipes can be added, removed or re placed without disturbing others. 5. Minimum trenching and field work. 6. No rollers or pipe supports required. 7. No breakage or waste of material during installation. 8. Tile or masonry protection not rer quired. 9. Field costs are much lower than those of tile, tunnel and simitar systems. 10. Insulation protection is absolutely dependable. 1031