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Air System Equipment Spray Nozzles Jos. A. Martocello & Company 229-31 North 13th Street, Philadelphia, Pa. ATOMIZING SPRAY NOZZLES Martocello Spray Nozzles are broadly used for all types of installations. Manufactured with precision and of a design which has been thoroughly tested for results and dura bility, they are guaranteed to give you satisfaction. Successful-Efficient results depend largely upon selecting the proper number and type of Nozzle suitable for your instal lation. Consult with us. Martocello Spray Nozzles produce a uniform fine wide spray with minimum friction and at lowest pressure require ments. Types of Martocello Spray Nozzles For maximum efficiency we recommend Nozzle orifices as indicated in table below. Any reasonable range of capacity for various pressures can be provided. We appreciate your in quiries and offer our coopera tion in assisting you to select a proper Nozzle for best results. Sizes and Capacities Pipe Size Inches Part No. Di&m. Orifice Inches 1930 '/ 1910 V, I y 1U Double % 1920 7/64 13/64 5/32 17/64 V, 2300 'A 2304 % 2308 7/32 5/16 11/32 Sib .22 .54 .86 1.48 1.98 2.66 3.59 10 lb .29 .77 1.18 1.96 2,63 3m 4.87 Capacity, Gallons per Minute 151b .34 .96 1.48 2.38 3.15 4.71 5.92 20 lb .39 1.13 1.76 2.75 3.62 5.52 6.83 251b .44 1.29 2.02 3.08 4.05 6.24 7.62 30 lb .49 1.44 2.24 3.36 4.44 6.87 8.33 35 lb .54 1.58 2.44 3.60 4.80 7.47 8.98 40 lb .59 1.71 2.63 3.82 5.13 8.04 9.60 Nozzles illustrated above are made in Brass Forging and machined brass bar stock. Cast Red Brass Nozzles in 1 in. to 2 in. pipe sizes also available. All sizes carried in stock for prompt shipment. Satisfaction Guaranteed 882 Air System Equipment Heat Transfer Surface Aerofin Corporation 410 So. Geddes Street Syracuse, N. Y. ZlEfWflN Standardized Light-weight Heat Exchange Surface Branch Offices CLEVELAND, CHICAGO. NEW YORK, PHILADELPHIA, DETROIT. DALLAS, TORONTO Aerofin is the modern Standardized Light-Weight Encased Fan System Heat ing and Cooling Surface originated by Fan Engineers to meet the present and future requirements of this highly specialized field. All Standard Aerofin Units are furnished as completely encased Units, ready for pipe and duct connections. The patented casings are built of pressed steel and are exceptionally strong and rigid, protecting the Unit from all the strains of pipe connections and expansion or con traction in service. The casings are flanged on both faces, top and bottom, and tem plate punched for bolting together adjacent Units, or for duct connection. Pig. 2 Flexitube Aerofin (Fig. 2) is distin guished from all other developments by its off-set tubes, so arranged as to absorb all expansion and contraction strains. Headers--Cast bronze or aluminum. Tubing--% in. O.D. copper, admiralty or aluminum. Joints--Where ad miralty or copper tubes ' are used together with bronze headers tubes are brazed to headers using Mueller patented joint. Where both aluminum tubes and headers are used tubing is welded to headers. Casings--Copper, aluminum or galvan ized iron. Design--Constructed with headers .on opposite ends making possible installation of units with tubes horizontal or vertical. Aerofin Non-freeze heater (Fig. 1) is non-freeze, non-stratifying spiral fin coil built into casing for air conditioning units or for installing in ducts. May be installed horizontally or vertically. Used on any two-pipe steam system for preheating or re heating. Modulating control on preheaters. Available in 13 lengths and 3 widths, from net face area of 2.76 sq ft to 26.28 sq ft. Tubing 1 in. O.D. Innertube % in. O.D. Headers--Cast Brass. Fins--spiral, turned copper. Fig. s Universal Aerofin (Fig. 3) is distin guished by its "S" bend construction of 883