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DESCRIPTION:The Tank Assen.Pry unit is the pressure TO ORDER: S*ify model 1372 Tank Assembly and sensing and transmitting part of theta nk gauge system. length in feet. To obtain correct length:Measure An open air bell, when filled with air, converts the distance from the indicator to the bottom of thetank. weight of the tank liquid to air pressure. Tubing Units are available in lengths of 25, 50, 75, 100 and in transmits this pressure to the tank gauge. multiples of 10 feet thereafter. NOTES: 1. THIS UNIT IS FOR TANKS 100%VENTED TO THE ATMOSPHERE. Approximate shipping weight:A 25 ft.unit is 5lbs.Add 2. A 2" NPT tank top opening is required. 3/4 lbs. for each additional 10 ft. TRANSMISSION LINE TO El TANK LEVEL INDICATOR C= i OR CONTROL SPRING PROTECTOR, ITI STEEL PLATED COMPRESSION NUT, I1H•TUBE,BRASS II COMPRESSION CONNECTOR,1H' TUBE K 1H'IPS. BRASS `� �REDUCING BUSHING, 1-1/P' X IW Ips. SHIPPEDBLACKIRONIN COILS BUSHING, DOUBLE TAPPED./ J I ASSEMBLED 3•K 1-1/t' X 1-1/p'IPS, BLACK IRON IREINFORCER PIPE, I TRANSMISSION LINE, SCHEDULE AG 1-112'IPS 1/A'O.D.SOFT COPPER TUBE �___ SUPPLIED BT INSTALLER Tit I AIR BELL, BRASS 1-1/2'o.D.TUBE,\ LL 1 It a.Loxa 1 \ I I 1JA' TO B' UNLESS OTHERWISE SPECIFIED EXTENSION, MUST BE ABOVE AIR BELL OPENIND NYLON STANDARD E• - FIRST READING ON INDICATOR SCALE UNLESS OTHERWISE SPECIFIED INSTALLATION INSTALLATION INSTRUCTIONS REINFORCER PIPE: A Reinforcer Pipe (not supplied) SPRING PROTECTOR: Before bending the transmis- of 1-1/2"NPT,schedule 40 pipe(not heavy duty), must sion line,slide the spring protector down and over the be used to insure the proper positioning of the Air Bell. fittings. This will permit bending of the transmission Cut the reinforcer pipe 4 to 6 inches shorter than the line without kinking and protect the fittings and tubing - vertical depth of the tank. Thread one end of the pipe from the backfill. and ream both ends to remove burrs. IMPORTANT: TRANSMISSION LINE: Uncoil the 1/4" O.D. copper TesttheReinforcer Pipeforfreepassage oftheAirBell . tube transmission line carefully to avoid bending or THE AIR BELL MUSTPASSALLTHEWAYTHROUGH kinking. Run the transmission tine along with the THE PIPE SO THAT THE EXTENSION RESTS ON suction or return lineand if possible install in a manner THE BOTTOM CAUSE THE TANK. that permits condensate to drain - pitched toward the T AIAMMI GOFTH AIR BELL RRECT REINFORCERTION tank avoiding dips and traps. The transmission line ISJAMMINGOFTHEAIRBELLINTHEREINFORCER contains only air and may becut tosuit.If possible,the PIPE' lineshouldbeonecontinuousrun,thus eliminatin the tape bushinp the g an install i nopeninto on top tanke possibilityof leaks at joints and couplings. When tapped bushing and install in opening on top of tank. tbing mut bejoined in he field the connctin MUST AIR BELL: The brass Air Bell at the end of the trans- BE ABSOLUTELY AIR TIGHT. Whenever possible mission I I ne is the"PICK-UP"device for the Petro meter protect the tubing by running through conduit or pipe. Tank Gauge. Therefore, its position in the tank is of When tubing is not protected,use only soft soil or sand prime importance. The Air Bell Extension must be as a cover before backfilling. resting on the bottom of the tank to give accurate and Fittings MUST be made up ABSOLUTELY AIR TIGHT correct tank gauge readings. to obtain accurate readings. Ends of tubing should be TANK FITTING:When the Air Bell Extension is resting cut square (use tube cutter) and deburred. When firmly on the tank bottom, make up the compression making up compression fittings,tubing must beseated fitting to lock the transmission line in place. This will and nut tightened with proper size open-end wrenches. permanently keep the Air Bell in position. Use no pipe joint compound on compression nuts. PETROMETER CORPORATION TANK ASSEMBLY UNIT REVISED 10-88 P.O.DRAWER P 1807 GILFORD AVENUE MODEL 1372—FOR 100%VENTED TANKS 1372 NEW HYDE PARK.NEW YORK 11040 CAN BE INSTALLED WHEN TANK IS FULL OR EMPTY