Document ZJwMORxOmRwzed8KYk3YYL6GJ

Controls and Instruments Hubbell Corporation P. 0. Box 700, Hawley Road* Mundelein; 111. Designers and Manufacturers of Automatic Control Valves For All Refrigerants Type SA-e, SF-S Typt SA-6, SF S Type SA-7, SF-7 Back Pressure Regulating Valves are of the conventional type used to maintain a constant evaporator pressure. Combination Back Pressure Regulator and Stop Valves. This regulator is of the conventional type used to maintain a constant evaporator pressure and the addition of a small electric pilot valve built into the head, makes it a suction stop valve. Type DSA-0, DSF-9 1. The Type "T" suction stop valve is any two evaporator pressures and will used where automatic suction line con automatically change from one to the trol is required. It is operated by high other by the opening or closing of the pressure gas and its construction makes a tight closing valve and its dependabil ity far surpasses the conventional mag netic stop valve. 2. The DSA-9-DSF-9 is a dual regulator which will control evaporators with two load conditions requiring different electric pilot valve. 3. The SAC-6 and SFC-6 valves are of the compensating type and are used where a constant temperature is desired in the medium being cooled. These valves will increase or decrease the evaporator pres sure to compensate for the increase or refrigerant temperatures. The dia decrease of the cooling load. Operated phragms in the dual head may be set for with air or electricity. Solenoid Valves from f in. to 2 in. inclusive for liquids and gases with com position seat discs readily renewable, coils for any electrical characteristics, built-in lifting stem standard, with either screwed, welding flanges or copper tube connections. Strainers in all sizes for liquids and gas with very large screen areas and ar ranged to bolt directly to valve or with screwed, welding flange or copper tube connections for installation wherever strainer is necessary. All valves have built-in opening stems, which eliminates the by-passes usually used for manual operation. With either screwed, welding type flanges or copper tube connections, in sizes from % in. to 8 in. inclusive. Write for complete information on these and our many additional Refrigeration Controls and Accessories. 1362 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 UM VfLOUTl tmM SEISM roru. ntuuci TYPE i-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, 1-1 in. deep. Weight, 8 oz. Accu rate, strong. Available in single and double scale ranges: 0-200 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. Scale6 in' Meter ranges:0-600 fpm and double range 0-300/100-2000fpm. Accuratereadingsas low as5fpm. Temporary Bulletin 913-A. 1363