Document pe4dE9pEQjxJZpQb4RMGnzEzE

Other profitable }-M products J-M % Magnesia fur highest efficiency low-pressure work ,J-M Aiui-Nwt.it I'ipe Covering, s|xcially designed for cold water lines to prevent condensa tion and dripping; J-M Wool Felt Pipe Covering, for hot and cold water service lines J-M Zero Fi|>e Covering, to prevent cold water pij'cs from freez ing under ordinary or moderate conditions. Specialties For economical lead joint pouring, use J-M Lead Joint Runners; for insulating range boilers, apply J-M Keystone Range boiler Covers. ,,.35fe: 7m IN ija i n rimiMt* v.l a. .vHo-'-C 1--... ,m - *' ' ' --4 ^. " i* m1 I |t| . i-T" Johns-Manville Service to Industry - Johns-Manville Zero Sectional Pipe Insulation The structure of Johnt-Msnvill* Zero Sectional Pipe Insulation - adapts it exceptionally well to its special service. OHNS-MANVILLE Zero Sectional where temperatures are moderate rather J Cold Water Pipe Insulation is con than extreme or where the length of time structed of a layer of 1" hair felt sur that the surrounding air would be below rounded by several layers of wool felt andfreezing-point is short. with a layer of saturated wool felt inside the hair felt. This prevents the hair felt from coming in direct contact with the pipe. Hair felt, one of the best known non conductors of heat, greatly retards the flow of heat from the water in the pipe to the cold surrounding air, and the wool felt jacket and the inner layer of saturated felt provide protection for the hair felt lining. This material is designed and con Where pipes run out of doors and are subjected to severe conditions or extreme temperatures, Johns-Manville Built-up Hair Felt of suitable thickness should be applied. (See page 42.) Johns-Manville Zero Sectional Pipe In sulation is furnished -in one thickness only (approximately 1*4") in 3-foot sections with canvas jacket and brass-lacquered bands, to fit standard pipe sizes. structed for insulating cold water pipes Not furnished in sheet and block form. that are located where there is a likelihood See approximate weight and price list on of the water in the pipes freezing but page 28. Johns-Manville Wool Felt Sectional Pipe Insulation N inexpensive insulation for cold A water pipes. Made of laminations ` of wool felt in sections 3 ft. long, in three styles: "Standard"--1" thick, with an inner lining of one layer of asbestos paper. "Champion" or "Express''--%" thick; same construction as "Standard." "Aqua" or " C-B "--y^ thick; same construction as "Standard". Not furnished in sheet or block form. See next page for approximate weights and list prices. 27 .*