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LI A21706
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LEAD INDUSTRIES ASSOOATION
Graybar (wilding, 430 Lexington Avenue Nw York, H. Y.
January Sit, 1936,
TO KASCY-CTCnuaS SCPFLYISO Lt-S PIPI la Sew York City:
The latest rules and regulations governing the use of water la Hew York City, which becane affective on January 30, 1935, require that lead pipe of th< following iiM> end weights he uni for nt<r servloaai
AA LzaD PIM
Inelda IhlclCMai Lb* .Per
Calibre J l Inches
7t-
3/4 la, .23
3-1/2
1 la. .246
4-3/4
1-1/4 la. -257
6
1-1/2 la. -2sa
8
2 la. .375
13-3/4
2-1/2 la. .466 3 la. .562
it?;s
Inside Thickness
fisoiter* la Inches 3/4 In* .293
1 in* .298 1-1/4 In. .319
1-1/2 in* .336 2 in* .504 2-1/2 la. .625 s .75
Lb a. Par
Linear ft.
4-3/4 6
7-3/4
11-1/4 19-1/2 30-1/6 43-5/lS
Thl* differ* froo tut oil regulation* In toat for-ssrly lead do* was ueei us to 2 la. la dlraiter only, the 2$ and 3 la. alt*a haring boon added la tbu now regulations.
7* are elvieed that under the oar cultiPle drolling law la Xew York, the ox.ber of 2* and 3 la. service* Installed should be greatly Increased.
Since brass, cast Iron, grlreal ted Iron and ceaent-llned Iron pice soy alto b used for thaee sixes, and since cany pluaber* prefer to install lead partly a* a result of oar own promotional
efforts, manufacturers of lend nine should oaks every effort to see that the proper telght 2V and 3 la. lead pipe 1* available to plusher*.
In on* c a m reeentlv brou^it to our attention, a reputable Plusher found It necetaary to Install 2l In. pipe weighing l?y lb. to the foot. Instead of 21-3/6 lb. as required by the regulation*, because be vaa unable to obtain the correct weight pipe without considerable delay. Cse Yater Department required thl pluaber to elgn an affllavlt guaranteeing the lnetallatlon for a period of cne ar. It should not be necessary for pluaoers who are anrlou* to uu lead pipe to have to liras thl* responsibility, The new
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LIA21707
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January 28, 1838.
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To Manufacturer* Supplying lead Pip* la JJaw fork City.
2$ In. Mnrlo# m Installed to rapine* aa old walght 8 la. tarrlca which bad axpendad to 4 la. Internal dlmaatar under prairar*.
Th* naw weights required by tba regulations ar* calculated on tba formula approved by tb* land Induatrla* Aasodatlon and smnufacturar* of land pip* for calculating tba proper wall thicknesses of land pip* to ha uaad under certain craaauraa. In thl* caaa, 73 lb. par *. In for tb* XX pip* and 103 lb. par *q. In for tb* XXX. da our race*" oandatlona bar* baaa uoad in calculating tbaao pip* weight*, and aa tba Tatar Department Intend* to anforoa tba lnatallatlon of tbs proper weight* atrlctly, wa abould cooperate with than la teeing that tba propor pip* 1* available,
*a aould Ilka to urge that you male* the** caw weight* of land pip* readily available la Sew fork City and that you Inform your Jobber* of th* iui regulation*. Ton can probably obtain copla* of the** regulation* from tba la* Cork City Department of Tatar Supply, 3*a and Xlactrlcity In tba Municipal Building, end If Tea haw* any further question*, w* shall be glad to hear from you. T* (ball appreciate being advised of what atap* you take la thl* matter.
Tary truly your*,
l u 9 xroosraias *ssocunos
Sacratary.
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