Document 91M4XZjYrG24baa1g2pL1X5m3

Insulation, Underground BALTIMORE H. W. Porter & Go. INCORPORATED Newark, New Jersey WASHINGTON RICHMOND CHARLOTTE CONDUIT SYSTEMS Description--Therm-O-Tile is a com plete conduit system for the permanent support, protection, and insulation of underground pipe lines. The tile is made 6 in. to 24 in. in diameter and with five different size base tiles, producing twentyseven different conduit cross sections. fibre filling may be used for insulation, as the insulation space is kept dry at all times, by the internal drain. For single or double pipe lines, sectional insulation of economical thickness is recommended; for multiple pipe lines, a filler type of insu lation is usually more economical in first cost. Waterproofing-- Under, normal, soil conditions, this conduit is waterproof. If marshy ground or partially submerged conditions are encountered, the conduit may be made completely waterproofed by the use of membrane waterproofing applied under the slab on a sub-base and carried completely over the tile envelope. Efficiency--The degree of thermal efficiency secured depends upon the type and thickness of insulation used. This conduit, due to its sealed air chambers in the tile and dry insulation space, adds to the normal efficiency of the insulating material on the pipe lines. Foundation--The base of the system is a thick concrete slab poured directly in the trench bottom, reinforced with steel when installed over a filled or boggy ground. Drainage--The drainage system of the conduit is entirely internal, open to in spection at manholes, and of ample ca pacity to keep the pipe space dry at all times without any possibility of becoming clogged with silt or vegetation. Pipe Support--All pipes are supported on cast-iron adjustable supports resting directly on the concrete base independent of the tile envelope. Accessibility--All piping is installed before tile is placed, giving complete ac cessibility for welding, testing and insu lation. Pipe fitters work on concrete slab walkway. Strength--Due to immovable concrete base and arch construction of extra heavy tile members, conduit will sustain any roadway traffic load usually encountered without extra reinforcement. Insulation--In this conduit, either sectional pipe covering or Thermobestos Pipe Supports Single or Double Pipe Lines Using Sectional Pipe Insulation. Multiple Pipe Lines Using Filler Type Insulation. Therm-O-Tile is also sold and installed locally by Johns-Manville Construction Units. 1020 Insulation, Underground The Ric-wiL Company Agents In Principal Cities CONDUIT SYSTEMS FOR UNDERGROUND STEAM PIPES Union Trust Bldg. new york--chicago-san francisco Established in 1910 Cleveland, Ohio Conduit--Standard conduit is vitrified salt glazed tile or cast-iron with Loc-liP Side Joints, bell and spigot type, lined or unlined. Tile in 24 in. sections, sizes 4 to 27 in. inside diameter. A Super-Tile con duit to support any average traffic load is also available. For extra heavy duty under railroads or where conduit is subject to extreme loads, Ric-wiL is made of castiron in 2 or 4 ft sections. Where reduced labor cost is not essential, Ric-wiL Uni versal Type System is recommended (details on request). Base Drain--Standard Base Drain is vitrified salt glazed tile for tile conduit and extra heavy tile or cast-iron for the castiron conduit, in 24 in. lengths. Made in three sizes to support and drain properly all conduit sizes. Pipe Supports--Standard pipe sup ports will carry from one to five or more pipes and are ordinarily spaced 12 ft apart. They are strong, made of cast-iron, rustproofed, and interlock with the base drain foundation, imposing no load on the con duit itself. No movement of pipes can disturb them. Special pipe supports avail able for different conditions. Information on request. v Insulation--Ric-wiL Dry-paC Water proof Insulation is high-grade long fibre asbestos processed so that it is permanently water repellant. Of unusually high efficiency and great natural strength, it will not slump away from pipes and is noncorrosive. Sample will be sent gladly for testing. Ric-wiL No. 11 Insulation (same as Dry-paC except non-waterproof) or sectional pipe covering can also be fur nished. For lined conduit, diateomaceous earth mixture is molded and keyed inside the tile. Accessories--Shutter sleeves, filter cloth, asphalt joint cement, waterproofing compound, manhole covers, and other accessories will be furnished as desired. Engineering Service--Full coopera tion with architects and engineers. In stallation supervision if desired. Technical Data--Tabulated Steam Heating Rates, Test Reports, Service Detail Bulletins, Catalog Bulletins, Central and District Heating Bulletins and Archi tects and Engineers Detail Sheets available upon request. Ric-wiL Unit Steam Main, a prefabricated. ready-tthsnstall unit. 1314 ft long, including conduit (Armco Iron), pipe, insulation, and accessories. Ideal for speed and economy on district heating projects. 1021