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Specialties, Steam Mason Regulator Company Boston, Mass. San Francisco, Calif. Montreal, Canada Manufacturers of Pressure Regulators and Steam Specialites No. tt9. Spring Type Sices H"-tW No. tl. Lever Type Siut 2"-16" PRESSURE REDUCING VALVES FOR HEATING SYSTEMS Vacuum Regulating Valve Sices W-k" For regulating the amount of vacuum on separate branches of a main vacuum system. The new Mason Re ducing Valves for heating systems are rapidly at taining the same popu larity as the well known Mason high pressure reducing valves so widely used industrially. These valves are up to the Mason standard of quality but areexceedingly moderate in price. For economy as well as lasting satisfaction it' is very much to your advantage to specify Mason. Vacuum Pump Regulators Sices Vi'-V For regulating the supply of steam to the requirements of a steam driven vacuum pump and thereby automatic ally maintaining a uniform vacuum On the system. Household Water Pressure Regulator Sices W-l" Designed for domestic service where the city water pressure is too great for economical house use. Eliminates noise 'in bathroom fixtures, leaking faucets and splashing in bowls and tubs. Standard Reducing Valve Sices W-8" For High Pre38ure Service. Damper Regulator Made in various sizes for handling damper equipment on -both, high ana low pressure boilers, operating on forced, induced, or natural draft. CATALOG--Write for Pocket Catalog and Handbook No. 62. It contains complete information about these and other Mason Regulators. 524 Specialties, Heating Monash-Youriker Co., Inc. ESTABLISHED 1900 CHICAGO NEW YORK MONASH THERMOSTATIC RETURN LINE TRAPS No. SS-A-H in. No. S5-B-H in. No. SB-B The distinctive feature of the MONASH Thermostatic Line of Traps, is the Dia phragm, a separate and independent unit, so constructed and so held in place that friction and strain on the Diaphragm is reduced to a minimum: overcoming the hazard of fracture and rupture of the Diaphragm. The No. 35-A has a vertical seat with the Diaphragm out of the Steam Chamber, while the No. 35-B is built with a horizontal seat and the Diaphragm in the Steam Chamber. These Traps are 56,in. pipe size, capacity 200 sq. ft., 65 lb. of water per hour. MONASH No. 36-B Traps--As illustrated, is built with a diaphragm in the steam chamber and in the following sizes: Guaranteed for 10 lbs. pressure. No. 36-B--H in. pipe size; capacity, 350 sq. ft.; 108 lb. water per hour, in angle only. No. 36-B--54 in. pipe size; capacity, 500 sq ft.; 160 lb. water per hour, in angle only. No. 36-BX--54 in. pipe size; capacity, 1000 sq. ft.; 350 lb. water per hour, in angle only. Monash Thermostatic Heavy Duty or Drip Traps for 25 lbs. Pressure MONASH thermostatic .special heavy duty or drip traps are made with dirt- pocket, clean-out and by-pass. Vertical seat and diaphragm outside the steam chamber. Especially suitable for blast colls, dry kiln coils,' main drips, dryers; laundry machinery and all points where large quantities of condensation is to be handled. No....................... 40 42 44y Size..................... Sq. Ft. of Radiation & Va 1: 1500 5000 Water per Hour.... pounds 108 475 1560 Net Weight.......... pounds 3.25 5.00 7.50 Monash Guaranteed Automatic Air Valves MONASH No. 1, all metal, non-adjustable automatic air valve in which the base and nipple are in one casting-- no soldered or sweated joints to come apart. MONASH No. 6, fourway-drain, lock-shield, automatic air valve with all working parts above opening to radiator. .Self cleaning; no flooding' of floors and other damage. Specify Monash Valve holder with valve. Monash Quick Venting Valves For mains and risers the MONASH No. 27 thermostatic quick venting valve is desirable. Has heavy brass body and cover, phosphor bronze thermo static diaphragm. Operates.-automatically at all pressures up to 10 lb. Insures rapid steam circula tion. Closes against steam, but does not close against water. Connections are H in., 1 lb. Monash Thermostatic Air Line Valves for drip or air line systems; also for venting vento stacks and blast coils. Is rapid in action and positive in results, passing all air but closing tightly against steam. Made of' brass. white plated; the No. 2 is in., the No. 3 is 3x$-$ in. 1 lb. net weight. No. 2