Document ba815jYvy239Qd3oZ3XYoDo80

LIA21808 LEAD INDUSTRIES ASSOCIATION Graybar Ruildlog, 420 laxlngton Avseuu Now YotK N. Y. January 26, 1932. To The Members of the Lead Industries Assoclatlont DBJy uVnUaIUnUimBIUoUuBs Oa'c. Vti1oUnU VoIf tIhUeO E&AxOelc>uUtlilv<eV CommVitWtee| the Lead Industries Assocletlon today adopted aa a standard the lead pipe size* shown on the attached table. The standard In question has been established so that all sizes of lead pipe In the following classifications will safely withstand the constant cold water pressure in dicated for each classification: * Classification Safe Pressures In Lbs. Per Sq, Inch A or 8 AA or ZS AAA or XXS 60 76 100 Heretofore the safe working pressure of these classes of lead pipe has decreased as the diameter of the pipe has increased. The principal changes occur in dia meters of 1 in. to 2 in. Alterations made In sizes bo low 1 in. are of minor importance and small in number but have been made to introduce a uniformity which does not now exist among the lead pipe sizes of various manufacturers. It Is not to be expeoted that the transition to the new standard will occur overnight. A period Is necessary to educate the consumers of lead pipe. In the meantime the re Is no objection to the use of current sizes but we would res pectfully suggest that the new standard be used. If possible, and where old or former sizes are ordered that the weight per foot be specified to avoid confusion. <nyn>, aagjiiiajywjwn.. jp.uj.sa^sMywnwnjjK1 ) "!' > V****'-*' 7~--Sg LlA*l809 O \5 * -e- The technical press la being notified of the adop tion of the new standard and In the near future the Lead In dustries Association expects to publish a booklet on infers*tlon about lead pipe which will help to infora plusher*, water works engineers and others Interested In the subject. It car be of interest In passing to know that the City of Washington, D. C. hea already codified its plusblag code to use the Lead Industries Association standard and its attendant advantages, Respectfully your*. 2-05, Secretary. j w v- ' u`-w j sm M3*y-5WJWM1' "cw L^ny-r^^i' Twrw'gy..., u j v J'A u . 4 f i i f...... ... .......................... .......... ' mmm...............i p m > PMLJJW..WIiWCT^ LIA21810 1 LEAD PIP? SITES Lra4 Induattiea Association Standard Sics Claccifieation Inalde UlAoctsr Fast fteT 3/8 in. B D C B A AA U Aft XL L V S XU XXS Outalda Dianater .620 in. .549 .577 .631 .723 .811 .868 eight par R* 8 10 12 1 18 2 28 1/2 In. 2 D C B A AA AAA Aft XL L M 8 XS XXS .628 .666 .712 .766 .798 .876 1.012 * 12 1 14 18 2 3 6/S In. E D C 3 A AA AnA Aft XL L K S XS XXS .766 .803 .881 .963 1.019 1,082 1.137 12 1 18 2 28 3 38 3/4 In. B 0 C B A AA AAA Aft XL L V 8 XS XXS .906 .940 1.006 1.068 1.156 1.212 1.336 l 14 1 12 2% 3 38 4 12 1 in. K D C B A Ah AAA Aft XL L 2 8 XS XX8 1.192 1.232 1.284 1.356 1.428 1.492 1.696 1 10 2 28 34 4 4 12 6 -f- 4>-ft, ^ ' avA-|'in'---- j .. 1 .1 II'--- ~~T~ 1..` I1*"" ' '' N 1764.01 6 Leal Industrie* Association Standard Site Classification Inslde'blareter gaiT----- * eat Outside Dlaneter velght per Ft. TST.-- az. 1-1/4 In. E D C B A AX AJU A* 1.442 In. XL 1.48A L 1.528 U 1.692 S 1.670 XS 1.768 xxs 1.889 2 2 3 3 4 6 7 6 12 12 12 1-1/2 In, B D C B A AA Aa A Aft XL L V S XS XXS 1.740 1.776 1.830 1.862 1.984 2.074 2 .272 3 38 44 8 66 6 11 4 1-3/4 1, Q C E A AA AAA XL 2.024 L 2.088 M 2.146 S 2.193 XS 2*404 xxs 2.624 4 5 6 6 12 10 8 14 12 2 In. X Aft 2.188 D XL 2.284 C L 2.354 B V 2.410 A s 2.503 AA XS 2.781 AAA xxs 3.006 3 4 12 6 7 6 12 13 12 19 8 2-1/2 In. 2.78 3.00 6 10 10 3 In. 3.28 3.60 6 12 8 4 In. 4.28 4.80 7 14 16 8 6 la. 6.28 6.60 9 14 20 4 la. 6.26 11 13 6.80 24 2 Lead pipe la sizes and velghts per running foot other than Indicated Bade to speelfIcatlon. wyw'> 1 n,im ij p t ! 'J l.jnr-|^^au|piajjwu'w'`.^j^Li|;'jf.igiy;iiie;i)^iif j j i^j t j j j , er.ag'J1 1 >' m