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Insulation nS^,,"4d fTTierm-O-Ui/e. ^ -------- ^ H. W. Porter & Co. INCORPORATED 817-G Freliaghuysen Ave., Newark 5, New Jersey Permanent Protection and Insulation for Underground Pipe Lines BALTIMORE, MD. CHARLOTTE, N. C. RICHMOND, VA. Also sold and installed by Johns-Mansville Construction Units in all principal cities. Therm-O-Tile assures the following 1--Much better insulation. A truly DRY conduit. Higher efficiency. 2--Much stronger than required by A.S.T.M. Arched construction. footing foundation. 3--Much longer life. The correct grade is maintained PERMANENTLY. 4--No leakage. Positive sealing throughout. 5--Most helpful instal lation--on a concrete "sidewalk." 6--No condensation pock ets at any time. 7--Lifetime economy. 8--Experienced engineer PATENTED Spread- A first cost that is ''^ggg| | competitive, and, definitely lower ultimate ,,osf 'yUat` ^ " channel drain in concrete base which makes for "-permanent prolection" of the insulation and assures continuous high efficiency. Therm-o-Tile STEAM CONDUIT SYSTEMS "Permanent"--Now that Therm-0Tile has been on the market so many' years, and its design is so well known by all leading heating and ventilating en gineers, we again wish to emphasize the importance of "Permanent protection." It is not difficult to provide TEMPO RARY protection and insulation for underground pipe lines. Threads and joints don't fail immediately, and foun dations don't sag immediately, but un less the job is properly done in the first place it won't be long before water seeps in and ruins the insulation. So, watch out. With wet and spoiled insulation, efficiency drops drastically. Unless the conduit is built on a truly solid founda tion there will be sagging and collection of water in pockets. Thoroughly Drained, Always--In the Therm-O-Tile concrete base there is a drainage channel--clearly visible in photograph--which carries off all water Single or Multiple Pipe Lines Using Sectional Pipe In sulation. Showing a typical Therm-O-Tile pip ing arrangement when there are two pipe lines. Note the channel drain which ``permanently pro-. teds the tnrulation. that may enter the conduit from any source, thereby keeping the insulation PERMANENTLY dry. Drainage is en tirely internal. The channel is accu rately and PERMANENTLY sloped so that condensate or other pockets cannot form. Open to thorough inspection at any time at manholes. Amply large to keep the pipe space dry at all times. "Spread Footing" Foundation--Posi tively prevents settling or sagging. The Therm-O-Tile "Spread Footing" founda tion base is a thick concrete slab poured directly in the trench bottom. Steel reinforced or placed on piles when in stalled over filled or boggy ground to in sure PERMANENT protection. See Previous Issues--In previous is sues of this GUIDE we gave details re garding the Tile Envelope which pro duces 2f different conduit cross sections. We told about the ideal accessibility of this conduit, its great strength, how it is water-proofed, and so on. For complete information ask for a copy of Bulletin 381. Competitive in Cost--Despite the high efficiency, greater strength, dependabil ity, and other features that are obtained in Therm-O-Tile, it is nevertheless com petitive in total first cost. Final cost is much less, thanks to its permanence. Cooperation--Our engineers have had exceptional experience in designing and installing steam conveying equipment for nearly every purpose. 1344 Insulation The Ric-wiL Company INSULATED PIPE CONDUIT SYSTEMS Union Commerce Bldg., Cleveland, Ohio Agent in Principal Cities There is a Ric-wiL insulated conduit system engineered to yourspecific needs--the transmission of steam, hot water, oil, hot or refrigerated process liquids--providing heat transfer with the lowest possible loss. 1. Ric-WiL Insulated Pipe Unit--Single or Multiple Pipes Prefabricated complete units with one or more pipes--in any specified combination--in helical corrugated conduit, coated and wrapped with asphalt saturated asbestos felt. 21-ft lengths for easy installation. Insulation is applied to any or all pipes in any thickness specified. 2. Ric-WiL Insulated Pipe Unit--For Process Liquids An adaptation of the multiple system used where a steam or hot water line heats fluids in other lines. Pipes are insulated from the exterior but not from each other. Sizes and specifications as required--conduit same as for other insulated pipe units. 3. Ric-WiL Foilclad Pipe Units--For Overhead Lines Pipe and insulation are protected and waterproofed by a double coating of machine-applied,- high temperature asphalt. Unit is then wrapped with asbestos felt and covered with a final spiral wrapping of copper or alu minum foil for maximum insulation and protection. 4. Ric-WiL Standard Tile Conduit--Type F Vitrified glazed A.S.T.M. Standard Tile Housing--acid and waterproof--with foundation type base drain sup porting weight of piping through correctly engineered pipe supports. Positive locked-in-place cement seals on sides and ends. For single or multiple pipes. 5. Ric-WiL Super Tile Conduit--Type F Same advantages as Standard Tile but with walls ap proximately double thick for strength under heavy traffic or where overhead load is above normal. Will support concentrated static load of 6 tons per wheel under actual installation conditions. Base drain of extra-heavy tile. 6. Ric-WiL Cast Iron Conduit--Type F Heavy reinforced cast iron conduit for use where under ground pipe lines run close to or under railroad tracks. Durable, water-tight and vibration-proof. Positive locked-in-place cement seals on sides and ends with metal clamps for extra tightness. 7. Ric-WIL Tile Conduit--Universal Type Where installation conditions dictate the use of a con crete pad Ric-wiL Universal Tile is recommended. Side walls are double-cell vitrified trapezoidal block design. Arch may be Standard Tile, Super-Tile, or Cast Iron. Ric-wiL accessories are available in all type systems; standard and special fittings, factory fabricated or field fabricated expansion devices, alignment guides, and anchors. Descriptive bulletins on request. Write: The Ric-wiL Co., Dept. 279. 1345