Document bBYqd7a17mOJyZxOKmVpRXrok

i TRANSITE >RESSURE PIPE ahns-Manville Transited Pressure Pipe assures >ermanenilY economical water transportation sbestos-cfmekt PIPE was first developed in a Isea-coast town in Europe over a quarter of a tury ago. Used there to carry sea water for fireand street-cleaning purposes, it proved so suc5. n this severe service that it was soon adopted n many other water carrying systems. 1 uuay, many thousands of miles of asbestos-cement e are providing highly efficient, economical service e water carrying systems of every leading indusd country throughout the world. It has been used many important water distribution systems on ich the maximum bonding period for any type of :er pipe has been allowed . . . ample proof of its ognized value in water line service, in fact, so rapid has been the acceptance of this terial that many thousands of miles are now* in r throughout the world, and over a score of fac ies are engaged in its production. Since the first Johns-Manville asbestos-cement se, or Transite, was manufactured in America, ousands of installations have been made in the uted States and Canada. Four factories in this untry are kept in continuous operation to supply : ever-increasing demand for this modem, cconomil * *ter carrier. There are very definite reasons for this wide ac ceptance of Transite Pipe. Manufactured in a wide range of sizes--from 4 to 36 inches inclusive--and in pressure classes of 100, 150 and 200 lbs., it is com posed of an intimate mixture of asbestos fibres and cement, formed under high pressure into a dense, tough structure. It is strong, durable and highly re sistant to all destructive agencies. Being non-metallic. Transite is entirely unaffected by electrolysis and tuberculation--the internal corrosion that cuts down flow rates and increases pumping costs--and it is highly resistant to all forms of soil corrosion. Economical, Virtually Maintenance-Free Yet, in spite of these many advantages, Transite Pipe is decidedly economical. In addition to its low first-cost, its immunity to tuberculation assures a permanently low coefficient of friction with large savings in pumping costs. Freedom from periodic cleaning and costly renewals cuts maintenance ex pense to an absolute minimum. And the relatively light weight and speed of assembly of Transite Pipe means that installation is accomplished rapidly, eco nomically--even with unskilled labor. m igid Control hrough Every of Produc er! Assures Uniform High Quality anufactured in diameters of 4 to 36 inches in weighed amount of cement anti a sufficient volume of E clusive, and in pressure classes of 100, 150 water is added to disperse the fibre uniformly through ind 200 lbs., Transite Pressure Pipe is produced by a the mixture. cries of accurately controlled operations. Each step is Formed Under Pressure on e Polished Mandrel designed to add permanence and efficiency to the fin An endless felt picks up a thin coating of the mix ished pipe. And every operation is supervised and ture 1/100 of an inch thick and conveys it to the checked by a staff of highly trained inspectors. polished sreel mandrel at the front of the machine. Asbestos Fibres Provide Strong Reinforcement The excess moisture is removed by suction created by The asbestos fibres serve as reinforcement in much vacuum chambers over which the felt is carried. the same way char sreel reinforces concrete structures, As the mandrel revolves, the asbestos-cement is but to an even greater extent because they are thor "built up" on its polished surface. Heavy hydraulic oughly mixed with the cement to provide uniform pressure rolls are forced against the mandrel while srrengtb througbour the material. The tensile strength the pipe is being formed. The tremendous pressure of asbestos fibres runs as -high as 400,000 psi. exerted compresses the mixture into a tough, dense, To assure maximum durability and toughness, the homogeneous structure of unusual strength and ''estos fibres are carefully selected and blended. In uniformity. -determined proportions they are mixed with a The highly polished steel surface of the mandrel at) i. r :i Thousands oi 4i Have Transite Thousands of installations oi Transits Pipe in cities and {owns cdl over the country are provid ing permanently efficient and economical serv ice under every conceivable condition. The^ Underwriters' Laboratories, during the investiga tion of Transite Pressure Pipe# asked the water department officials of scores oi these towns lot their frank, unbiased opinion of Transite Pipe. On the following three pages will be found a number of excerpts from the most typical of these replies as they were reproduced in the report of the Underwriters' Laboratories, Inc. 1 ohn s - Man^iilve OENSRAiOFBd^^^^^^^ (j Other Johns-Maaville Quality Products Acoustical Materials '. . i , * * * 44*1 Asbestos BuUdtdg Boards Asbestos Textiles- ,i`J Kpf- U0 'Industrial ios'uLayotij^ t ^ / :-T *'. * * p\'fl4 .Packings aod Gaskets .... -v'..' -'' ?5-?3yW-^~ -V - ^CAlUh) osttc* Movable Walls -* * T%vi;,. .:i*~ ' i- ^^JpHNS^MANVlLU-INTE *' .. ' ^ N* Y*A HASN'llUt ' \tlOH--;*' 4;C`-.V' '''" ' "*' -* :'"'* '. ______ Ja^-VLSS-^UA^V ' -ifiC -- : ___________TOAWTY M FORJMOR THAN KINETY YEARS r* ' "** OJJ C^IJS i K.i