Water and Gas Works Appliances Manufactured by R.D. Wood & Co

Water and Gas Works Appliances Manufactured by R.D. Wood & Co

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1886 edition. Excerpt: ... pure tin resists the acids likely to be found in any water supply. On account of the melting point of tin being considerably lower than that of lead, care will be necessary in making joints to prevent the tin being disturbed. An English authority recommends the use of cadmium, which renders the solder fusible at a much lower temperature, thus preventing the melting away of the tin lining. Weight of Lead Pipe.--Lead pipes of weights in class A of table are used ordinarily when the head of water on them does not exceed 75 feet; class A A, when the head is from 75 to 150 feet; and class AAA when the head, or strain from water-ram, is very great. This strain from water-ram in service pipes is very much dependent on the 5character of the plumbing with which the service connects. TAB LE No. 26. Weights Of Lead And Tin Lined Service-pipes. Connections of Service Pipes.--Connections between service pipes and street mains now are usually made with a " corporation cock " or ferrule; this is a brass stop-cock, one end of which is fitted with a plug thread for screw, ing in hole drilled and threaded in cast main, and the other fitted with a union joint to connect with service pipe. The drilling, tapping, and inserting of the ferrule is performed without loss of water by means of tapping machines specially designed for this purpose. Where a ridged service pipe is to be joined the connection can best be made by using a short piece of lead pipe, as the flexibility of this allows the adjustment of the service in the trench without undue strain at the ferrule. Either at the curb or building line of streets it is usual to place a second stop-cock in service pipes, and enclose the same with a box, thus making the turning on and shutting off of...show more

Product details

  • Paperback | 46 pages
  • 189 x 246 x 3mm | 100g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236947711
  • 9781236947710