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2 46 ASHRAE Guide And Data Book Four Jamison Doors solve special problems a variety of unusual doors Catalog Data Section .247 New Jamotuf* Plastic Door is a low cost, heavy duty plastic door with stainless steel kick plate on door and frame. Plastic surface equals stainless steel in scratch and Impact resistance. 'Jamison Trademark Write for complete data on these end other Jamison doors to Jamison Cold Storage Door Company, Hagerstown, Md. New Electroglide Mark II Power Doors are lighter, smaller doors for cooler and freezer rooms with simplified sealing adjustment, faster drive mechanism and precision travel adjustment JAMISON What every heating engineer should know about tank contents gauging systems Three systems for dial-type liquid level indication are now available. Which one Is right for your application? Accurate dial-type gauges will provide you with instantaneous and safe indica tion of tank contents. And you can have this indication either at a remote loca tion or at the tank rite. FOR REMOTE INDICATION, two sys tems are available. 1. The Automatic Float-Type provides instantaneous indication of tank level at Ramota reading float gang# distances up to 250 feet from tank site. It utilizes a balanced hydraulic trans mission that is extremely sensitive to every movement of the float inside the tank. Float systems are ideal for tanks containing hazardous liquids, tanks under pressure up to 200 psi or vacuum. They give continuous indication without any outside source of power. Level indi cation is not affected by changes in am bient temperature or the specific gravity of the liquid. High- and low-level tank switches are available for controlling pumps or signals. Lavelocaeier hydrostatic gauge "Levelometera," these gauges are recom mended where shape or construction of tank does not permit use of float gauges or where tank-to-indicator distance is greater than 250 feet. Compressed air operated gauge model can be located up to 1000 feet away from tank site. Handpump model can be located up to 150 feet away. Two or more Levelometers may be used at separate locations to indicate con tents of a single tank or a single unit will indicate contents of several tanks. Highand low-level switches are also available for use with these hydrostatic systems. Oiroct reeding (lost gauge FOR TANK-SITE INDICATION The Direct Reading Float-Type is sim ilar to remote-reading float-type except that indicator is mounted directly on the tank. Gauges are ruggedly constructed for use indoors or out in any climate. Indicator mechanism is sealed in dry atmosphere to prevent condensation on the dial. Models are available to indicate cleavage line between two immiscible liquids such as gasoline and water or carbon disulfide and water. As with re mote types, switches may be used for operation of pumps or indicators. Send coupon below for illustrated application guide THE LIQUIDOMETER CORP. OepL A, Long Island City 1, New York O Please send me free catalog on liquid level gauges. I need additional applications information. Please have applications specialist call. 2. The Hydrostatic Type uses an exclu sive adaptation of the hydrostatic prin ciple. Known throughout industry as