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, .Bends, Coils, Fittings Mot Water and Industrial Piping GRINNELL COMPANY- Heating, Industrial and Power Plant Piping, Fittings, Hangers, Valves, Pipe Bending, Welding, Piping Supplies, Etc. Executive Offices: Providence 1, R. I. _____ 11. N. Y. Atlanta 2, Ga., (Plant and Foundry) Baltimore 2, Mn. Boston 9, Mass. Buffalo 2, N. Y. . Charlotte 1, N. C. (Branch) Chicago 9, III. (Branch) Cincinnati 2, Ohio Cleveland 14, Ohio (Branch) Columbia, Pbnna. (Plant) Offices, Plants and Branches Columbus 15, .Ohio Cranston 7, R.1 (Plant and Foundry) Dallas 1, Texas (Branch) Detroit 26, Mich. Houston 1, Texas' ' Kansas Cnr 16, Mo (Branch) Memphis 3, Tenn, Milwaukee 3, Wis. (Branch) Minneapolis 15, Minn. (Branch) Newark 2, N. J. New Orleans 13, La. New York 17, N. Y. Philadelphia 34, Penna. (Branch) Pittsburgh 22, Penna. Providence 1, R. I. (Plant and Foundry) Richmond 19, Va. Rochester 4, N. Y. St. Louis 10, Mo. (Branch) St. Paul 2, Minn. (Branch) Warren, Ohio (Plant and Foundry) GRINNELL COMPANY OP THE PACIFIC Long Beach, Cal. Los Angblks 13, Cal. (Branch) Oakland 7, Cal. (Branch) Ban Francisco 7, Cal. (Branch) Seattle 1, Wash. (Branch) Sacramento 14, Cal. (Branch) Montreal, Qua. (Brandi) GRINNELL COMPANY OF CANADA, LTD. Vancouver, B. C. (Branch) Toronto, Ont. (Plant ami Foundry) Oshawa, Ont. (Foundry) Winnipeg, Man. PRODUCTS AND SERVICES-- Complete Service on materials to Specification on Power Plant Piping, Industrial Piping, and Industrial Heating Systems; Prefabricated Pip ing including Pipe Cutting and Threading, Pipe Bends, Welded Headers, Welded and Welding Fit tings, Lap Joints and the Grinnell line of products for Super Power. Grinnell Equiflo Valves for forced hot water heating systems; Grinnell Adjustable Pipe Hangers and Sup ports; Grinnell Cast Iron and Mallea ble Iron Pipe Fittings; Grinnell Flared Tube Fittings; Grinnell Malleable Iron Unions; Grinnell Welding Fittings; Grinnell Thermoliers (Unit Heaters); Thermoflex Traps and Heating Spe cialties. Also Humidifying Systems; Piping for acids and other special materials. Malleable Iron, Brass, Bronze and other Castings; Brass, Cast Iron, Wrought Iron and Steel Pipe.; Seam less Steel Tubing in Iron Pipe Sizes. Valves: Check, Diaphragm, Globe, Pressure Reducing and Regulating, Quick Opening, Safety and Y. Automatic Sprinkler Systems; Stand Pipes; Underground Supply Mains; Hydrants; Fire Pumps; Pressure and Gravity Tanks. Grinnell Equiflo Valves For Forced Hot Water Heating Equiflo Valve The designing of forced circulation hot water heating systems is so simplified by the Grinnell Equiflo Valve that they can be laid out and installed as easily as vapor or steam systems. This valve consists of a regular type packless radiator valve with a cartridge or tube made up of a series of orifices and baffles capable of setting up any required frictional resistance. This method of establishing any desired resis tance does away with elaborate calcu lation of pipe sizes. Grinnell guarantees perfectly balanced circulation to each and every radiator where these valves are installed throughout the system. . Equiflo Data Book sent to interested parties. 1118 Grinnell Company, Inc. Bends, Coils, Fittings GRINNELL ADJUSTABLE PIPE HANGERS AND SUPPORTS One of the chief advantages of Grinnell Adjustable Hangers is that they permit adjustment of pipe lines after installation, thus obviating the necessity of turnbuckles or the removal of hangers. Their time and trouble-saving qualities during installation are equally exceptional. Below are shown a few Grinnell Hangers and Supports of par ticular interest to heating engineers. Send for Hanger Catalogue showing complete line. fit. No. 101 Solid Bing Adjustable Swivel Rings (Patented) These Malleable Iron Adjustable Swivel Rings can be used with Coach Screw Rod or Machine Threaded Rod in connection with practically any type of Ceiling Flange, Expansion Case, Insert, etc. Adjustment of at least 1 in. is secured by turning Swivel Shank. Swivel Shank automatically locks, preventing loosening due to vibration in the pipe line. The Split Ring permits adjustment either before or after Ring is closed. A wedge type pin is loosely but inseparably cast into the hinged section for fastening this section after pipe is in place. Pin. No. 10i Split Ring Fig. No. 174 Swivel Pipe RoB Adjustable Swivel Pipe Rolls (Patented) An adjustable type of pipe roll using a single hanger rod. Swivel Shank allows vertical adjustment and automatically locks, preventing loosening from vibration. CB-Universal Concrete Inserts (Patented) Made of malleable iron, in one body size, to take a special removable nut, tapped for % in., H in., % in., % in. or Vo in. rod as required. Nuts automatically lock by means of V-type teeth on both insert and nuts. CB-Umtorml Inurt GRINNELL WELDING FITTINGS 50 Elbow, Long Radius Grinnell Welding Fittings are made from Seamless Steel Pipe or tubing and possess the same physical characteristics as stan dard, extra strong and o.d. steel pipe or seamless steel pipe of comparable size. They can be used under the same con ditions, pressures and temperatures as the pipe itself. All Grinnell Welding Fittings have weld ing faces for all plain circumferential butt welds scarfed or beveled as follows: For wall thicknesses ^6 to M inch inclusive, 37H deg. =** 2^j deg., straight bevel. Angles of bevel other than 37 deg. can be furnished on special order. 45 Elbow, Long Rodim Welding Tee Lop-Joint Stub End with Lap Flange attached 1119 Welding Lateral