Document 3MQNw7a9e3GdkRMBmnLk2O3n

Heating Systems Sp*ciutiw Yarnall-Waring Company Manufacturers of Steam Specialties 133 Mermaid Ave., Philadelphia 18, Pa. YARWAY IMPULSE STEAM TRAPS Construction--Made entirely of bar stock. Only one moving part, valve (F). For pressures to 400 lb, body, control cyl inder, valve and seat are stainless steel valve and seat heat treated; bonnet is cold rolled steel, cadmium plated; cap is tobin bronze. For 6001b, trap is all stain less steel. Operation--At low condensate tempera tures, bypass through control chamber (K) and center orifice of valve reduces chamber pressure and valve opens. At high temperature, condensate vaporizes in (K), increased volume builds up pres sure and valve closes. Light Weight--Need no support--h in trap weighs only If lb. 2 in. trap weighs 8f lb. Small Size--$ in. trap 2\ in. long--2 in. trap, 4f in. long. Will not air bind.--Require no priming. Insure quick heating. Low Price--Often cheaper than repairing old traps. Factory set for all pressures to 400 lb (or 600 lb) without change of valve or seat. Send for descriptive bulletin T-1740. YARWAY FINE-SCREEN STRAINERS List Prices, Weights and Dimensions No. 60 Series--to 400 lb; 120 Series--to 600 lb Size Complete Trap Series 60 Complete Trap Series 120 Weight Pounds Length laches V*H" 315 $ 25 >H Hm 22 37 2 31 52 2H 3H 48 m* f8 80 4 114 Ilf 2' 90 150 sh Offer better protection against rust, scale and dirt for all steam equipment. Ten standard sizes in. to3 in. Cad mium plated bodies. High grade Monel woven-wire screens. Many thousands in use. Also flanged strainers, H in- to 5 in. Write for Bulletin S-203. YARWAY EXPANSION JOINTS All-steel welded construction; light but strong. Chromium covered sliding sleeves. Cylinder guide and stuffing box integral, assuring perfect alignment. In ternal limit stops. Gun-pakt and Glandpakt types: Gun-pakt (illustrated) has fixed glands fitted with screw guns which permit addition of plastic packing while joint is under pressure. Sizes 2 in. to24 in., single end or double end, flanged or welding ends; 150, 300 and 400 lb pressures. Choice of leading utilities and industrial firms. Send for Bulle tin EJ-19I2. 1408 Heating Systems vai?es. Air The Dole Valve Company Main Offices and Factory: 1933 Carroll Avenue, Chicago 12, 111. WATER MIXERS THERMOSTATIC AIR CONTROL j0 THE ALL STAR UNE AIR AND VACUUM ^ VALVES "DOLE THERMOSTATIC AIR CONTROL" FOR FORCED WARM AIR HEATING SYSTEMS PROVIDES INDIVIDUAL ROOM TEMPERATURE CONTROL Operates thermostatically from room air temperature. Extremely Sensitive: Modulates output to meet heat requirements. Completely self-contaiQed; no wires to run--no bulbs to locate--simple to install. Replaces standard forced warm air registers. Simple setting of the thermo-dial assures room temperature as desired--corrects many unsatistory heating installations. Materially improves any forced warm air system. An automatic balancer. A fully automatic zone control for every room. Dole Air Controls are available in two sizes and will fit the following stackhead openings: Temperature Selector Dial 10" will fit- 10" x 4" 10" x 5" 10" x 6" 12" will fit- 12" x 4" 12" x 5" 12" x 6" With an adapter 12" will fit-- 14" x 4" 14" x 5" 14" x 6" An adapter is available for baseboard installation of these Controls. DOLE AER AND VACUUM VALVES The Dole line covers every venting need on one pipe steam and hot water heating systems and offers a complete choice for every purpose. DOLE WATER MIXERS Dole Water Mixers provide safer, tempered domestic hot water on all tankless heater and storage tank installations. Available in 3 sizes, in., % in., and 1 in. 1409 i