Document ZBpXO5rNk5wx9jENvZ0yEp19L

428 Heating Systems WATTS WATTS REGULATOR COMPANY Lawrence, Massachusetts HOT WATER SPACE HEATING SYSTEMS RADIATOR DIVERSON FITTING ASME RATED BOILER SAFETY RELIEF VALVES 740 Series For dependable protection against excessive pressure. Expanded outlets provide large capacity. Pressure range 30 lbs to 75 lbs; ratings from 895,000 to 10,700,000 Btu/hr. Cast iron body construction. Non-mechanically guided, stickage-free design. Sizes: 54 in. x 1 in., 1 in. x 1*4 in., 1V4 in. X 1 Vt in., ll/t in. X 2 in., 2 in. X 2Vt in. FEED WATER PRESSURE REGULATORS No. 560 Automatically supplies water as needed to maintain minimum system pressure under normal operating conditions. New fast-feeding principle purges system of aerated water. Built-in check valve and stainless steel strainer. All-bronze body construction. Female inlet and outlet connec tions. Sizes: Vt in. and 54 in. CIRCULATOR New, compact, space-saving design assures quiet, vibration-free circula tion for forced hot water heating systems. Minimum number of parts-- single shaft from motor to impeller results in quiet, efficient operation; elimination of a pump bearing and spring coupling common to most de signs results in minimum maintenance. Pumping capacity comparable with all standard pumps. Conventional motor and seal construction. Fur nished with companion flanges, sizes 54 in., 1 in., VA in. and 114 in. COMBINATION TANK DRAIN Completely new low-cost design for dependable, fast draining of water logged expansion tanks. Three-in-one combination unit acts, as expansion tank drain vent, system shut-off valve, and hose drain-off connection, saves labor and fittings. All-bronze construction. RADIATOR DIVERSION FITTINGS Precision machined for forced circulation heating systems to insure proper channeling of water into each unit. All bronze (85 percent copper) for maximum corrosion-resistance. Minimum pressure drop through fitting. Low cost. COMBINATION AIR ELIMINATOR AND FLOW CHECK For noiseless, efficient air elimination. Combines flow check and air eliminator in one housing, saving fittings and labor. Design creates flow path which directs air to the surface for fast removal. Flow check opera tion prevents gravity flow, enables summer operation of domestic water unit Belief VJt, Watts Regulator Co. HOT WATER SUPPLY SYSTEMS TEMPERATURE & PRESSURE RELIEF VALVES Senes 40, 140, 240,340 (ASME RATED--A.GA. LISTED) Under latest Standard ASA Z21.22-1958 Fully automatic temperature and pressure relief protection for hot water supply tanks and heaters. Available with short or extended type thermal elements. All-bronze body construction. Seat located above drain so water can't be trapped and sediment can't foul seat. Non-mechanical seat-to-disc alignment will not stick or freeze. Powerful solid wall, hydraulic principle, piston-type thermostat not vulnerable to corrosive water conditions. 40, 140, 240 Series tested, rated and listed by A.GA. under new ASA Z21.22-1958. A.GA. temperature steam ratings are as follows: 40, 140 Series = 100,000 Btu/hr; 240 Series = 200,000 Btu/hr. Temperature re lief 210F. Pressure range 75-150 lbs. Standard setting 125 lbs. Sizes: 54 in. to 2 in. inlet connections. Female outlet connections. ASME RATED WATER PRESSURE RELIEF VALVES 174A Series Water pressure relief valves for hot water supply systems. Similar to 740 Series but have same size inlet and outlet connections and all-bronze body construction. Pressure range 75 lbs to 160 lbs with Btu/hr ratings from 1,000,000 to 15,250,000. Female inlet and outlet connections. Sizes: 54 in. to 2 in. inclusive. WATER PRESSURE REDUCING VALVES No. 135 For water service on domestic and industrial applications. Initial pressures up to 250 lbs. Bronze body, one-piece construction with stainless steel renewable seat and integral strainer. Sizes Vt in. to 2 in. inclusive. For reduced pressures under 30 lbs specify 135LP. STEAM HEATING SPECIALTIES STEAM PRESSURE REGULATORS 127 Series Large capacity, remote control, diaphragm type reducing valves. Initial pressures up to 250 lbs. Reduced pressure range 0-100 lbs. Female connec tion sizes Vt in. to 3 in. Flanged connections 2Vt in. and 3 in. 127SC has stainless steel seat and composition disc for saturated steam service. 127SS has stainless steel seat and disc for superheated steam service. 152 Series Limited capacity, self-contained, tight-closing regulators for process steam and air. Sizes 14 in. to 1 in. Initial pressures up to 250 lbs. Reduced pres sure range 5-40 or 25-100 lbs. BOILER WATER LEVEL CONTROLS (U.L. Listed) No. 60LW Combination Boiler Water Feeder and Low Water Cut-off Automatically feeds water to maintain safe water level in boiler. Cut-off switch interrupts burner circuit in event of emergency low water condition. Maximum steam pressure 35 lbs. Up to 5,000 sq ft radiation. Gage glass type, Vt in. feed valve connection. No. 89A Dependable Low Water Cutoff For gage glass installations on low pressure boilers. Maximum steam pres sure 25 lbs. Available with single-throw mercury switch for cut-off only, or double-throw switch for cut-off and alarm service. Ideally suited for self-energized control circuits on gas-fired heating installations. Write for new condensed catalog 429 X