Document 8Vk0OJwK3zGgwXw54MY468Lpo

Heating Systems Pump, The Nash Engineering Company 234 Wilson Road South Norwalk, Conn., U. S. A. Sales and Service Offices in all Principal Cities Return Line Vacuum Heating Pump Standard with the heating industry for over seventeen years. Removes air and conden sation from return lines of vacuum steam heat ing systems, discharging air to atmosphere and returning water to the boiler. Two independent units are combined in a single casing--an air unit and a water unit. Impellers of both are mounted on the same shaft. Pump is bronze fitted throughout. Supplied direct connected to standard elec tric motors, for belt drive, or for steam turbine drive. For continuous or automatic?operation. Standard in capacities up to 300,000 sq ft E.D.R. Larger units special. Bulletins Nos. 307, 308, 309, and 310 on request. Vapor Turbine Vacuum Heating Pump Jennings Vapor Turbine Heating Pumps combine all advantages of the standard return line heating pump with a new type of drive, a specially designed low pressure turbine which operates directly on steam from the heating mains on any system, requiring a differential of only 5 in. of mercury, and returns that steam to the heating system with practically no heat loss. This pump affords the safety and economy which goes with continuous condensation re turn and steady vacuum, and at no cost for electric current. Furnished standard in capa cities up to 65,000 sq ft E.D.R. Larger units special. Bulletin No. 290 on request. Condensation Pump and Receiver Removes the condensation from radiators in return line steam heating systems, particularly radiators set below the boiler water line level, and pumps the condensation back to the boiler. Pump is bronze fitted with enclosed centrifugal impeller of improved design. By making the pump casing a part of the return tank, and bolting the motor base to the tank, floor space is conserved. The rectangular construction permits installation in a comer against the wall. These pumps are furnished in standard sizes with capacities ranging from 134 to 225 gpm of water. For serving up to 150,000 sq ft of equivalent direct radiation. Bulletin No. 319 on request. 1026 Heating Systems Pumps The Nash Engineering Company 234 Wilson Road South Norwalk, Conn., U. S. A. Sales and Service Offices in all Principal Cities Centrifugal Pump Made in standard and suction (self-priming) types. For circulating hot and cold water; boosting city water pressure; handling water in air washing and conditioning; handling ash sluicing water, etc. Compact--motor armature and pump im peller are mounted on the same shaft. Simpli fied--no bearings in pump casing, one stuffing box. Accessible--impeller removable without disturbing piping or shaft alignment. Self-priming types will handle air or gas con tinuously with liquid being pumped, and can be operated intermittently without foot valve. Supplied in 1, 1J, 1)4, 2, 3, 4, 6, and 8 in. sizes, with capacity up to 2000 gpm. Heads up to 300 ft. Bulletin No. 322 on request. Suction Sump and Sewage Pumps Jennings Sump Pumps are self-priming cen trifugals for handling seepage water and liquids reasonably free from solids. Sewage Pumps are equipped with non-clog type im peller for liquids containing solids. Suction piping only is submerged. Centrifugal impeller and vacuum priming rotor are mounted on same shaft that carries rotor of the driving motor, forming a single moving element, ro tating without metallic contact. Will handle air or gas with liquid being pumped, and because of self-priming feature are installed entirely outside of pit, affording perfect accessibility for inspection or cleaning. Capacities to meet all requirements. Bulletins Nos. 159, 161, and 327 on request. Air Compressor and Vacuum Pump . Nash Air Compressors operate on a unique and different principle. The one moving part rotates in casing without metallic contact. There is nothing to wear, and no internal lubrication. Nash Compressors deliver absolutely clean air; ideal for agitation of liquids, pressure displacement, and handling gases. Vacuum pumps ideal for priming pumps, blood sucking pumps in hospitals, and wherever non-pul sating vacuum is required. Pressure 75 lb or vacuum 27 in. of mercury. Furnished for'any capacity; special for higher vacuums and pressures. ' -Bulletins Nos. 252, 282, 325 and 331 on request. 1027 y