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Heating Systems E. 135th St. MUELLER CO. Decatur, 111. Walnut Ave., Bronx, New York BJftANCHES 1072-76 Howard St., San Francisco 2468 Hunter St., Los Angeles PRODUCTS Mueller Automatic System of Hot Water Heat Control Reducing and Regulating Valves for water. Reducing and Regulating Valves for steam. Relief Valves. Water Strainers. Complete line of High Grade Plumbing Brass Goods Mueller Automatic System of Hot Water Heat Control--This is a closed system operating automatically without an expansion tank. It can be quickly installed on either new or old jobs. The water in the system is always kept fresh. This promotes good circulation. Just enough water is admitted by the re ducing valve to supply the amount re leased by the relief valve. When air is released from a radiator it is saver but also is a safety feature, checking not necessary to go to the basement to the fire when the desired temperature is turn water into the system as is the case reached. with other systems. The reducing valve takes care of this. A very considerable saving in fuel is effected due to the automatic control of dampers and rapid circulation. Reducing and Regulating Valves--For steam, water, air, gas, oil, etc., and relief valves that are absolutely dependable. They will not stick after long periods of disuse. Perfectly safe as both reducing valve and relief valve are operated by the pressure of the water in the system. These valves are especially constructed and tested for use on this system. The reducing and relief valves are positive in action and durable, the working parts Brass Goods--Everything in the line ofbrass faucets, stops, etc., for lavatory and bath room, and also complete line of laboratory faucets adopted and approved by leading universities such as the Mas sachusetts Tech. being made of bronze with phosphor bronze diaphragms. Mueller Co. has been in business from 1857 and has an acknowledged reputation Boiling point of water raised to higher for quality goods. point than with open system. Specific information regarding any Mueller The damper regulator is a very important product will be cheerfully given upon re part of this system as it is not only a fuel quest. 442 Heating Systems and Relief Valoes Neptune Meter Company 50 East 42nd Street, NEW YORK Branch Offices Atlanta, Ga..... .......................... 525 Virginia Avenue Denver, Colo...........................1700 Fifteenth Street Boston, Mass.......................................141 Milk Street Los Angeles, Cal.................. 701 East Third Street Chicago, III.................... 130 North Jefferson Street San Francisco, Cal......................320 Market Street St. Louis, Mo....................... ..............1912 Pine Street Portland, Ore...................................474 Glisan Street . Neptune Meter Co., Limited, 345 Sorauren Avenue, Toronto, Ontario RED TOP PRESSURE SYSTEM OF HOT WATER HEATING This type of heating system is proving increasingly popular throughout the country. It is easily installed at a price which attracts the owner, builds good will for the architect and engineer while allowing a real profit for the contractor. Owners appreciate the high efficiency and the economy ef fected by the Red Top Pressure System. RED TOP RELIEF VALVE MODEL No. 2 This valve and an airtight expansion tank, to be located in the basement near the apparatus, are the only special pieces of equipment needed. Red Top Relief Valves act on the dead weight or gravity principle, and are the only valves of their kind to be approved by the Underwriters' Laboratories, Inc.. In the Model No. 2 a special nickel weighted piston is forced off the seat when pressure reaches 30 pounds. Non-corrosive metal is used throughout, and there are no springs, levers or other complicated parts to get out of order. Made for either "open" or "closed" systems. They are inches high, 5% inches wide, with inlet threaded for standard 1 inch fitting and male outlet threaded for.l inch fitting. Sectional View, Red Top-Relief Valve Model No. e RED TOP MODEL No. 1 protects domes tic hot water supply, and prevents range boiler explosions and other ruptures. It is y2made with inlet threaded for standard inch pipe fitting and outlet drilled and tapped for H inch connection. It jpay be adjusted to relieve automatically at 50, 75, 100 and 130 lbs. pressure. Its measurements are 4J^ inches high and 4 inches wide. 443