Document vDmNw0Q8k1374gQRo7Mmzxm6

Controls and Instruments Hubbell Corporation 319 N. Albany Ave. Chicago 12, 111. Designers and Manufacturers of Automatic Control Valves For All Refrigerants Type SAS, SF-6 Type SA-6, SF-6 Type "7"' Type SA-5, SA-6, SF-5 and SF-6 Back Pressure Regulat ing Valves are of the conventional type used to maintain a constant evaporator pressure. Type SA-7, SA-8, SF-7 and SF-8 Combination Back Pres sure Regulator and Stop Valves. This regulator is of the conventional type used to maintain a constant evap orator pressure and the addition of a small electric pilot valve built into the head, makes it a suction stop valve. The DSA-9 and DSF-9 is a dual regulator which will con trol evaporators with two load conditions requiring different refrigerant temperatures. The diaphragms in the dual head may be set for any two evaporator pres sures and will automatically change from one to the other by the opening or closing of the electric pilot valve which is built into the head. The SAC-6 and SFC-6 valves are of the compensating type and are used where a constant temperature is de sired in the medium being cooled. These valves will in crease or decrease the evaporator pressure to compensate for the increase or decrease of the cooling load. These valves are made to operate with air or electricity. The Type "T" suction stop valve is used on installations where automatic suction line control is required. It is operated by high pressure gas and its construction makes a tight closing valve and its dependability far surpasses the conventional magnetic stop valve. All of the valves have built-in opening stems, which eliminates the by-passes, usually used for manual opera tion. Available with jdither screwed, welding type flanges or copper tube connections, in sizes fromv in. to 8 in. inclusive. Solenoid Valves from to 2 in. inclusive for liquids and gases with composition seat discs readily renewable, coils for any electrical characteristics, built-in lifting stem standard, available with either screwed, welding flanges or copper tube connections. "Strainers are available in all sizes for liquid and gas with very large screen areas and arranged to bolt directly to valve or with screwed, welding flange or copper tube con nections for installation wherever strainer is necessary. Write for complete information on these and our many additional Refrigeration Controls and Accessories. Type 8A-7, SF-7 Type DSA-9, DSF-9 1230 Type SACS, SFC-6 Controls and Instruments Illinois Testing Laboratories, Inc. Room 516, 420 N. La Salle St., Chicago 10, 111. Precision Instruments for Every Industry The direct-reading ALNOR VELOMETER TYPE 4-F Standard minimum set for heating and air conditioning air velocity measurements: The Alnor Velometer is an instan taneous, direct-reading air velocity meter designed for convenient, rapid determination of air velocities in air conditioning, heating and ventilating, and exhaust systems. It gives instan taneous direct readings in feet per min ute, without- timing, calculations, or reference to tables or charts. Accurate information on performance of equip ment, duct systems, etc., can be ob tained with a few moments' inspection with the VELOMETER. It can be effectively used to locate drafts and leaks around windows and doors, or in duct systems. Alnor Velometer, Jr. A miniature, di rect reading Velometer--4 in. high, 3 in. wide, l- in. deep. Weight, 8 oz. Accu rate, strong. Available in single and double scale ranges: 0-2000 to 0-2500 fpm. Bulletin 725 The Alnor Velometer is built in sev eral standard ranges from 20 fpm to 6000 fpm, and up to 3 in. static or total pressure. Special ranges available as low as 10 fpm and up to 25,000 fpm velocity and 20 in. pressure. Alnor Thermo-Anemometer. For accu rate measurement of low air velocity. Compact, direct-reading, battery oper ated, self-contained, portable. Scale 6 in. Meter range, 0-600 fpm. Accurate readings as low as 5 fpm. Temporary Bulletin 913-A. 1231