Document KRe72Rx47ka1JMy452vn7wMJK

Heating Systems 1^5 <t Hoffman Specialty Company General Office and Factory 1001 York Street, Indianapolis 7, Ind. Sales Representatives in Principal Cities Manufacturers of Radiator Air Valves, Quick Vents and Air Eliminators for all tvo of Steam and Vacuum Heating Systems--Steam Traps of all kinds--Radiator Suimlv Valves--Vacuum and Condensation Pumps--and Hot Water Automatic Heat Contml Systems. 1 RADIATOR AIR VALVES FOR STEAM AND VACUUM SYSTEMS No-W No. 41 No. i3 No. 70A and No. 4& No. 71A No.tA No. IA No. 40 Steam--Hoffman patented tongue syphon--H in. connection--fixed port. No. 41, 43 and 45 Steam--Straight shank for convectors--telescopic syphon--Y in Y in., and % in. male, Y in. female connections. No. 70A Steam--Tongue Syphon--Non-adjustable, single port--Y in. connection. No. 71A Steam--Straight shank for convectors--telescopic syphon Y in. connection. No. 1A Steam--Tongue Syphon--ADJUSTABLE air opening--Y in. connection. No. 2A VACUUM--Tongue Syphon--ADJUSTABLE air opening--Y in. connection. No. 3 Steam--For Airline or PAUL systems--Y x Y in. conn.--union tailpiece. Hoffman Specialty Company Heating Systems I'rtw.te? LOW, MEDIUM AND HIGH PRESSURE THERMOSTATIC TRAPS Low Pressure Medium Pressure High Pressure Low pressure traps have brass bodies, caps and union nut and tailpiece. 17C is made in Angle, Swivel and Vertical patterns. 8C is made in Angle and Straightway patterns. 9C is made in Angle pattern only. Thermostat and seat both renewable. No. 17C Capacity 200 sq ft EDR 15 lb pressure A in. connection No. 8C Capacity 400 sq ft EDR 25 lb pressure % in. connection No. 9C Capacity 700 sq ft EDR 25 lb pressure 1 in. connection Medium Pressure Nos. 8 & 9 and High Pressure Nos. 8H & 9H have all bronze bodies and caps with union nut and tailpiece. Thermostats are 6 diaphragms of special non- corrosive metal. Thermostats and seats are renewable. A in. sizes are furnished in Angle, R.H., L.H. and Straightway patterns, others in Angle only. Medium Press. 50 lb limit. High Press. 125 lb. Capacities--Lb Condensate per Hour--Working Pressure--Lb per Sq In. Gage Traps w 8 H' K' 9 1' 5 15 25 50 Traps 100 180 235 400 8H 125 225 300 490 8H 225 350 450 650 9H 325 500. 625 850 9H 4' H' l' 25 50 100 125 235 400 550 590 300 490 650 720 450 650 875 950 625 850 1125 1250 FLOAT TRAPS, DIRT STRAINERS AND SUPPLY VALVES No. 4 No. 4A No. t6A No. 74 No. 74 No. 76 No. 79 No. 4 SteamMains--Will not close against wafer--% in. male, Y in. female connection. No. 4A Steam Mains--Float closes against water--% in. male, Y in- female connection. No. 16A VACUUM Mains--Float closes against water--% in. male, Y in. female con- . nection. No. 75 SteamMains--Mediumsystems--has float--% in. male, H in. female connection. No. 76 VACUUM Mains--Medium systems--has float--% in. male, Y in. female connection. No. 75A Steam Mains--Large systems at low pressure--has float--M in. male, Y in male connection; No. 76A VACUUM Mains--Large systems low pressure--has float--% in. male, Y in female connection. No. 74 Unit Heater Vent Valve--Operates 0 to 35 lb. Vents air at any pressure and whether rising or falling--can oe used on steam mains--% in. male, Yi in. female connection. No. 79 Hot Water Vent Valve--Positively removes air from piping of any hot water system. Max. pressure 75 lb--% in. male, Y in. female connection at base and tapped at top for % in. pipe connection. me 50 Series Float and Therm. Traps are available in large capacities and four pressures, 15,30,60 and 125 lb. Used for venting and draining risers, steam mains, unit heaters, blast coils, etc. 50 Series Traps are made for easy servicing with all working parts mounted on cover. Remove four bolts to expose all parts. Pipe sizes are from J4 in. t0Radiator Supply Valves are made in sizes from K to 2 in. in Angle, R.H., L.H., and Straightway patterns. Brass bodies, union nut and tailpiece. Nos. 180 and 185 have non-rising handles. Both are packless. No. 186 is especially suited to vacuum systems. ... _ . ,. . , Hoffman Dirt Strainers are self-cleaning Y type. Brass strainer cylinders and cast iron body. Sizes H to 2 in. for 125 lb pressure. Should be used in line ahead of all float and thermostatic traps. Also available with monel metal strainers. CONDENSATION AND VACUUM PUMPS Condensation Pump Hoffman-Economy pumps are available in varying ca pacities, D.C. and A.C. cur rent, single, two, or three phase and in pressures up to 200 lbs. Also made in single and duplex units for differ ent capacities and pressures. 1389 Vacuum Pump