Document x5LeeY1mB3pjXbyO68md2a3Jg

^infers on Pumps Superheated steam travels nearly 2 Another job for K&M "Featherweight" 85% Magnesia Hero Is a real job for Insulation. A 16" superheated steam line almost two miles long at 275 pounds pressure and a temperature of approximately 650F. Just another case where 85% Magnesia and Hy*Temp Insulation were selected to give maximum results under exacting circumstances. The pipe line illustrated above presents one of those extreme conditions where insulation is called upon to minimize heat losses with seasonal temperature changes varying from zero to 90F. In this instance a 3-ply outer covering of Asbestos Roofing Felt is used os a protection against the elements. K&M Distributors, located strategically throughout the country, arc experts on the application of K&M insulation materials. Let them help you gain substantial savings in your plant. Write for full details. KEASBEY & MATTISON COMPANY AMDLGU. PENNSYLVANIA IN CANADA t Alts* Atbuto* Cs- UA, MONTBIAl TORONTO W1NNIFEO end VANCOUVER 20 velocity needed to put this quantity into the impeller opening must come from an external head. The value of this ex ternal head is the ''required NPSH". Obviously, if the liquid pumped is not to vaporize In the entrance to the Im peller, the required NPSH must be measured over and above the vapor pressure of the liquid at the pumping temperature. The required NPSH will vary roughly as the square of the pump. capacity through the useful range of opplication of that pump. For YOUR Pumping Heads v Worthington has the most complete line of centrifugal pumps -- oil pres sures, all capacities -- and engineers ready to give you expert advice on any pumping problem. For further details proving fhere'e more worth in Worthington, contact our nearest Dis trict Office, or write to Worthington Pump and Machinery Uml Corporation,CantrifuialPump g8 Diviu'on, Harr/eon, S. /. WORTHINGTON Mid-Juno, 1948 -----or