Document yR4kJxNGroqzbNOR8gN11X92

Valves and Heating Specialties Detroit Lubricator (ompany DETROIT. U . S . A. NEW YORK CHICAGO Largest Manufacturers of Radiator Valves in the World The "Genuine Detroit" Spring and Disc Packless Radi ator Valve has been developed to fulfill the need for a radiator valve that will not leak around the stem nor need repacking. It does away with the trouble and expense of leakage to which ordinary valves are subject and its construction makes it par ticularly. adapted for use on vacuum systems where tightness is essential. Its handsome appearance harmonizes with good surround ings and makes it suitable for use in homes, office buildings, hotels, etc. Complicated parts are eliminated, so that the valve is simple in construction and so substantial that it carries the assurance Detroit Packless Radi of satisfactory service over a period of years; It is quick open ator Valve ing--opens and closes with less than a full turn of the handle-- is easy turning and is equipped with a new type of non-breakable round handle, with a permanent, black, hard rubber finish. Manufactured in angles, corners and globes H to 2 in. sizes. In satin nickel finish with polished trimmings. The "Genuine Detroit" No. 101 Quick Opening Hot Water Radiator Valve, Packed Type, is designed to overcome the difficulties of hard turning, always encountered with shell type valves. It operates on the principle of an elliptic swinging plate--set at 45 deg. angle --which is attached to the stem. By revolvingtthe handle one-half turn to the left, tfie valve is opened, while one- half turn to the right closes it. The narrow edge of the plate presents a very small area of contact with the body, so that any corrosion or encrustation--due to impuri ties in the water--is easily broken away.- This con struction insures the valve turning easily even after years of service. Detroit No. 101 . Quick Opening Hot Water Valve Pat'd June 6, 193 The interior plate is concave so that a passage of true elbow shape through the valve-is._developed when the plate is in full open position'. This shape offers much less resistance to the flow than is the case with valves of the shell type, where the liquid is forced to turn at a right angle. It is particularly sturdy in design with a stem which will stand hard usage and is equipped with a new type of non-breakable handle, handsome in appearance, and with a permanent, black, hard rubber finish. An indicator attached below the handle travels between two stops on the body marked "off" and "on" so a glance shows whether the valve is opened or closed. The stuffing box is of gland form and easily adjusted to prevent leakage around the stem. The "Genuine Detroit" Equalizing Hot Water Radiator Valve is a valve of the above type equipped with a movable stop collar mounted on the neck and which provides a means of securing a uniform flow through each radiator, and permits the systems to be easily and accurately balanced, and perfect circulation insured. The handle, pointer engages this collar, creating the "on" position. The adjustment is a very simple exterior one easily made by the fitter after the valve is installed and the system is in operation. Detroit No. 105 Equalising Hot Water Valve Specify "Genuine Detroit" Valves and get insurance of constant satisfaction. 432 Values The Dole Valve Company 1923-1933 Carroll Avenue, CHICAGO, ILL. Manufacturers of a Complete Line of High Grade Packless Radiator Valves and Automatic Air Valves DOLE GRADUATED PACKLESS RADIATOR VALVES A short study of the sectional view shown will indicate that in designing the Dole Packless Graduated Valve every re quirement neces sary to make a satisfactory Graduated or Modulating Valve has been considered. Should any adjustment be desired after the Lever Handle Type of Dole valve is installed Packless Fig. sets merely loosen octagon nut on top of dial with special wrench which is furnished for the purpose, turn dial to left to the desired point, then tighten nut. Vapor or Vacuum Systems are an ac knowledged modern method of Scientific Heating. Dole Packless Graduated Valves have proven particularly valuable in the proper functioning of many of the most successful systems now in operation. There is a Dole Valve for every type of Heating Sys- tem -- whether it be steam, vapor, vacuum or hot water. Mechanical Engineers, Architects, Heating Con tractors' and Owners are becoming better ac quainted, as time goes on, with the quality and satisfaction which Dole Packless Radiator Valves offer. The majority of Knob Handle Style the above-mentioned in of Dole Packless dorse Dole Valves in the Fig. S 100 most hearty manner, realizing that quality, satisfaction and price are the three out standing features of the Dole Packless Radiator Valve--the valve with the ex clusive feature, Ball-Bearing Construction. DOLE SYPHON AIR VALVES Seating Pin--finely machined hard metal seating point, hydraulic pressed to perfect radius, preventing possibility of sticking or binding. Float--made of light but strong annealed brass, ris ing when water enters the valve and positively pre vents leakage. Inner Chamber of Float--contains exactly proper amount of thermo static liquid, which forma a powerful gas - the instant steam comes in contact, ex panding diaphragm and closing valve against es cape of steam oi water. Diaphragm--made of special spring bronze, convex shape, corrugated. Expands with heat, contracts back when cold, thus opening and closing valve automatically. Float Rest--one-piece, finely drawn biass, open on four sides to permit water to drain through syphon. Firmly braced into base, forming strong, substantial rest for float. Venting Seat--heavy construction, threaded and brazed into valve casing, thus preventing possible injury to venting seat after valve is installed. Syphon Lock Collar--made of extra heavy brass, firmly brazed to syphon, pre venting either accidental or intentional removal of syphon from valve. Base--heavy drawn brass, threaded on interior to meet exterior thread on casing. Firmly braced on casing to insure strength and durability. Syphon--made of one-piece annealed brass tubing, formed to perfect shape, to fit inside of radiator column. Assembledinto valve free from obstruction, thus per mitting air.valve to be attached to radiator syphon. Always hanging in proper posi tion inside of radiator. 433