Document xzjdrYaDmYQp1eXDNgoqY0R6G

Specialties, Heating . Sterling Engineering Company 1636-44 Holton Street MILWAUKEE,'WIS. STERLCO THERMOSTATIC TRAP The Sterlco Thermostatic Radiator Trap is designed for use on both vacuum and vapor heating systems. It is an al! brass trap constructed with a vertical diaphragm with a flat seat. The ex pansion of the diaphragm closes the trap against the steam pressure. The vertical seat is a self-cleaning feature as dirt and scale after passing the seat drop down into the return line instead of collecting inside the trap. The diaphgram is the result of long and careful experiment. The metal is carefully tested before being used and the greatest care is exercised by skilled mechanics to insure perfection in each diaphragm. They are guaranteed to function properly for a period of at least five years. The Sterlco Graduated Packless Radia tor Valve is of the Jenkins Disc Type. A half turn of the handle will open or close it. A graduated dial indicates the degree of opening through the valve. ' The valve is neat in appearance, easily dis mantled as all parts are threaded and screwed together and does not require packing. These valves are furnished with either lever or wooden wheel handles or with lock and shield. Capacities and Sizes Size Capacity VS* VS vs* vs 1' ml* ws*ws 0 to 20 aq. ft. rad. 20 to 50 sq. ft. rad. 50 to 100 aq. ft. rad. 100 to 200 sq. ft. rad. 200 to 300 aq. ft. rad. No. Size 2 3 4 wvrs Capacity Up to 200 sq. ft rad. 200 to 500 500 to 1000 aq. ft. rad. STERLCO SLIDE VALVE RETURN TRAP The Sterlco Slide Valve Return Trap differs in principle from other return traps on the market by utilizing the sliding type of valve and besides draining return lines of heating systems and returning water to boilers, it will lift liquids to higher levels where steam or air pressure is available. It is especi ally adaptable where ceilings are low. Size Return Traps 3 Sq. Ft. Surface 2000 4000 6000 Inlet and Outlet \Vi" 2' 2? Steam Connection Vent Connection Min. Height Return above Water Line vs VS ' 14* vs vs 16* vs vs 18* 412 Length Overall 20'/t' 26' 32' Shipping Weight 150 190 250 List Price $100.00 ISO.00 \ Sterling Engineering Company Specialties, Heating STERLCO-ROYS TEMPERATURE CONTROL Description and Operation The Sterlco-Roys Temperature Control consists of a valve installed in the supply line to the unit of radiation which is controlled by a combination of highly sensitive dia phragms. These diaphragms are in sulated from the heat of the radiator and enclosed in a housing. ' At the top of the control is mounted a gradu ated scale indicating temperatures from 60 to 80 deg. The regulator can be set to operate at any desired temperature marked on the scale by moving the lever through a slot in the scale. We Manufacture the following Sterlco Products: Thermostatic Traps, Packless Radiator Valves, Air Line Valves, Return Traps, Air Eliminators, Vacuum Pumps, Condensation Pumps and Receivers, Air Line Vacuum Pumps, Strainers, Temperature Regulators. SIZE Inlet and Outlet Sq. Ft. of Radiation A B cDE vs Up to 60 sq. ft............................... 3VS lvs 2VS 3VS. w r 61 to 125 sq. ft............. 4' 1VS 2VS V/S *vs tvs 126 to 200 aq. ft............................... *vs 2VS lvs 3VS V/S 413