Document OJq0naGagjK2n51QmKJG5VOX1

Heati.ng S,,yst.ems Belief Val.es, controls fATTS Regulator Company 10 Embankment St., Lawrence, Massachusetts RELIEF VALVES AND CONTROLS FOR . . . HOT WATER SPACE HEATING HOT WATER SUPPLY SYSTEMS w*- No. NfOXL r. r. BeUct Vafa fen w PRESSURE RELIEF VALVES FOR HOT WATER HEATING BOILERS (ASME rated) SELF-CLOSING TEMPERATURE AND PRESSURE RELIEF VALVES {ASME and A.G.A. Rated) N40, 140, 240 Series for hot water supply 174A Series--For dependable protec tion against over pressure. A com plete line of sizes % in. to 2 in. inclusive. Bronze body and internal trim--nonmechanically guided, stickage-free de system protection. Available in short or extended type thermal elements. Tem perature relief 210 F. Pressure range 75-150 lb. Standard setting 125 lb. Sizes in. to 1% in. inlet connections. Female sig7n4.A & 740 Series--these valves are the outlet connections. same as above except with increased outlets providing increased capacity. Tested and rated by the National Board of Boiler and Pressure Vessel In Type No. Connections Drain Style spectors. Size l* M' #xl' Px2* 2' x ASME Press. Steam Kasum No. Btu/hr 30 lb | 36 lb 45 lb 174A 174A 174A 174A 174A 74A 740 740 500.000 575,000 680,000 1.135.000 1,290,000 1.530.000 1 865,000 2,120,000 2.505.000 2 020,000 2,310,000 2.720.000 3 815,000 4,360,000 5.130.000 700.000 795,000 940,000 2 900,000 3,325,000 3.925.000 5.250.00015.975.000 7.050.000 N40L N40XL H'm H*m HH''tf 1112214444440J001ISSXXXX_______lIH_K'f_''_mf_____l1_KHHH'_'f''f'ifff Short Extension Short Extension Short Extension Extension Extension (f) female connection -- ________ ASME PRESSURE STEAM RATING (Valves set at 125 lb) N14400SL, , N14400XXL1f 1,028,000 Btu/hr 141S, 141X j 24?x} 1,467,000 Btu/hr FEED WATER PRESSURE TEMPERATURE ONLY RELIEF REGULATOR VALVES (A.G.A. Listed only) No. 135HW automatically supplies water as needed to maintain minimum system pressure under normal operating condi tions. Regulator is set to deliver 12-15 lb, but may be adjusted to higher pres Nos. 400T, 401T temperature (only) relief valves for hot water supply tanks and heaters where separate temperature relief valves are desired or required. Sizes in. or 1 in. inlet, % in. female sures. Female inlet and outlet connec outlet, Btu/hr ratings up to 1,500,000. tions. Sizes }i in., % in., 1 in. 460 Watts Regulator Co. Heating Systems cSuoulres' STEAM BOILER WATER LEVEL CONTROLS No. SOLWD No. SSA BOILER WATER FEEDERS AND FEEDER CUT-OFF COMBINATIONS (Listed by Underwriters' Lab.) Feeder automatically feeds water to maintain safe water level in boiler. Cut off switch interrupts burner circuit in the event of an emergency low water condition. 60 Series--Max. Steam Pressure 25 lb.--Gage glass type. lA in. connections. Available as feeder only--feeder cut-off --feeder cut-off and alarm switch. Up to 5,000 sq ft radiation. 76 Series--Max Steam Pressure 35 lb.--Larger float and body design. Avail able in same models as 60 Series. Float chamber connections 1 in. female. For over 5,000 sq ft radiation. LOW WATER CUT-OFFS (Listed by Underwriters' Lab.) No. 89A--Max Steam Pressure 25 lb.-- Gage glass type with deep sediment chamber. Available with single throw mercury switch for cut-off service only or double throw for cut-off and alarm ser vice. No. 50A--Max Steam Pressure 50 lb.-- Heavier float and bellows construction for use on small and medium size process boilers as low water cut-off or pump starter. Also used on hot water heating boilers. 1 in. female top and bottom float chamber connections. See diagram on opposite page. PRESSURE REDUCING VALVES FOR WATER AND STEAM SERVICE REGULATORS FOR WATER SERVICE No. 223 regulator only, sizes in. to 2 in. No. 223S is No. 223 regulator with strainer. For initial pressures up to 250 lb. Reduced pressure range 30-75 lb. No. 127W remote control, diaphragm spring type pressure reducing valve; sizes lA in. to 3 in. Initial pressures up to 250 lb. Reduced pressure range 10-100 lb. REGULATORS FOR STEAM SERVICE No. 127 spring type and No. 125 weight and lever tjnpe remote control diaphragm regulators. Sizes A in- to 3 in. inclusive. Initial pressures up to 250 lb. Reduced pressure range 10-100 lb. Sizes 2(*> in., 3.in. available with flanged connections. Also available as double seated regula tors in sizes up to 6 in. No. 152 self-contained type, sizes A in. to 1 in. Initial pressures up to 250 lb. Reduced pressure range 5-40 or 25-100 lb.