Document dYoZLqmX8652v28oMQa4X2XnQ

Lead Plumbing Selected for School Laboratories LUMBING in the chemi Pcal laboratory and physi cal preparation room of the damage that may result from embedding pipes directly in concrete or masonry. The large new Mount Pleasant horizontal runs are supported Regional Senior High School, continuously on 2 x 2 in. Providence. R. I., was done angle irons with hangers with lead to solve the vexing shaped to fit the angles. problem of handling corro Attention should be given sive chemical wastes. About to the heavy weight of lead 1500 ft. of lead pipe, of which pipe used in this installation. some 75 per cent is 2 in. pipe For chemical wastes greater weighing 12 lb. per ft., has been used in this installation. There are 86 lead stubs and 7 lead stacks; lead bag traps ADVERTISERS STUDIOS Mount Pleasant Regional Senior High School, Providence. R. /.. where lend is used in the laboratory pi,umtiing. wall thickness is naturally required than for ordinary wastes since conditions are more rigorous. Minimum are also being used. weight of lead pipe for this purpose should he Lead Lead serves admirably for chemical wastes, not alone Industries Association Standard B or M weight, which because it resists corrosion by such a variety of modern may be identified by the Lead Industries' "Seal of chemicals, but because it also has flexibility that is abso Approval'', the letters B or M. the diameter and the lutely essential in any piping system if it is to endure. manufacturer s name or trade mark stamped on it. Building movement and settlement are taken up by lead This pipe weighs: pipe without damage or strain, an unusual feature in corrosion resistant materials. Furthermore, since joints in lead chemical wastes can be made by lead ''burning", making continuous homogeneous runs of lead pipe, joint troubles may be eliminated. Inside Diameter if eight per Runnitig Foot Inches Pountls Ounces 1 34 11V'/,i 3 12 3 27 Since solder is corroded by many chemicals that do Horizontal runs of lead pipe in the not affect lead all joints in chemical Providence school were hung in drop work should be made by lead ''burn ceilings and vertical runs in brick ing . In this wav nothing hut durable chases. Lead stubs coming through lead is presented to the attack of cor tire concrete floors were encased in rosives. sheet iron sleeves. These are excellent The architect for Mount Pleasant practices that should be followed in High School is Irvin Gorman, of all piping installations wherever pos Providence. Plumbing was done bv sible. as it removes the danger of C. H. Cronin. Inc., of Boston. sSSiS T- . cMLIlvfeSiSFgStsk Lend laboratory waste pipes sup ported continuously on 2x2 in. angle irttrts. suspended on hangers shaped to /it the angles. PHOTOS I1V AIIVKMTSERS STCDIOS Lead pipe installed in chase in brick trail oi the Mount Pleasant Schmil. [2] View showing some of the many lead stubs used to resist corrosice chemi cals and provide flexibility in the school laboratory plumbing. LIAP5451