Document M4mvGjoOkwmpyNeybdY57K7QM

Heating Systems and Relief Voices Neptune Meter Company 50 East 42nd Street, NEW YORK Branch Offices Atlanta. Ga.................... 1173 Virginia Avenue, N.E. Denver, Colo____ ,,_________ 1700 Fifteenth-Street Boston. Mass....................- _______141 Milk Street Los Angeles. Cal---------------- 701 East Third Street Chicago. Ill_____ ___ ___130 North Jefferson Street San Francisco, Cal--______. 320 Market Street St. Louis, Mo1912 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 heating engineer and allows a worthwhile profit. 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 for the Red Top System. Red Top Relief Valves act on the dead weight or gravity principle, and are 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. They are 6^ inches high, 5% inches wide, with inlet threaded for standard 1 inch fitting and male outlet threaded for 1 inch fitting. Sectional View, Red Top Relief Valve Model No. RED TOP MODEL No. 1 protects domes tic hot water supply, and prevents range boiler explosions and other ruptures. It is made with inlet threaded for standard inch pipe fitting and outlet*drilled and tapped for H inch connection. It may be adjusted to relieve automatically at 50, 75, 100. and 130 lbs. pressure. Its measurements are 4)^ inches high and 4 inches >vide. 526 Heating Systems Thrush Differential Pressure Relief H. A. Thrush & Company Makers of Thrush System Factory and Offices Peru, Ind. Thrush Automatic Damper Regulator Thrush System comprises equipment to be added to any unregulated gravity hot water heating plant to make it a "Closed System" operating under slight added pressure and with automatic control of dampers. Thrush Differential Pressure Relief Valve A large flexible diaphragm which places a thrust against the Valve member making1 it certain that the Valve will open. Valve seat is at all times sub merged in water, won't corrode because it has no contact with atmosphere. Dirt and sediment will' not collect at the valve seat. Design is such that heavier solids fall away from seat. Regularly set to open, at 26 lb. pressure for 1. 2 and 3 story buildings. For higher buildings, adjustments made at factory. Non- adjustable and not easily tampered-with. No small restricted openings. Fig. 1 Thrush Automatic Temperature Damper Regulator Its operation depends upon the tempera ture change of the water circulating through the heating system and not upon pressure. Maintains different water tem peratures by simple adjustment of sliding weights on lever. Multiple disc thermo stat sets in dry well permitting easy in spection. A fuel saver. Easily connected with Fig. one short nipple as shown in Fig. 6. Thrush . Pressure Tank Serves two purposes--conserves hot water and return^ it to system--and being closed to the air, it maintains pressure on the system by compression and expansion of the air in the tank. Thrush Tanks are made of copper bearing steel, welded and tested, coated with enamel. Connect as shown in Fig. 6. Fig. S Thrush Pressure Tank Fig. 4 Thrush Thermometer and Special Gauge 3[ l| furnished with (g Thrush System ? simplify operation. p. g Benefits of Thrush System of Hot Water Heating Thrush Pressure System actually in creases rate of heat transmission,--faster circulation and hotter radiators. Therefore lower water temperatures may be carried. Installation is easy, requiring but 6 ft. of % in. pipe and eight fittings. A further reduction of pipe sizes makes for lower cost and higher efficiency. DATA AND SPECIFICATIONS Class "A" Equipment Consists of Thrush Automatic Temperature Damper Regulator, Differential Pressure Relief, Air Tight Pressure Tank, Special Gauge and Thermometer. Class "B" Equipment Consists of Thrush Differential Pressure Relief, Air Tight Pressure Tank, Special Gauge and Ther mometer. SIZES Size No. 0 up to 350 sq. ft. of radiation Size No. 1 up to 750 sq. ft. of radiation Size No: 2 up to 1250 sq. ft. of radiation Size No. 3 up to 2000 sq. ft. of radiation For larger job use additional pressure tanks of proper capacity. 527