15 Body Used with Companion flanges Model material ( Meter) ( NPT, BSPT, and slip weld) Maximum capacity Working pressure Application class* K-7 Aluminume M-5, M-7, M-15 11/2 " and 2" 150 GPM 150 PSI 1, 2, 16, 30 (550 L/min) K-15 Aluminum M-15, M-25 3" 300 GPM 150 PSI 1, 2, 16 (1,136 L/min) K-30f Aluminum M-30 3" 300 GPM 150 PSI 1, 2, 16 (1,136 L/min) eCast iron and stainless steel metallurgies available for K7 series valves. fIncludes 4" to 3" reducer flange. * See table on page 9. Air activated differential check valves The K-Series air-activated check valves are installed on the outlet side of the meter, and are designed to stop the flow of liquid whenever air is present to ensure accurate measurement. Used where air entrapment is of particular concern in the application, such as draining tanks. Used with air eliminators with a limited bleed valve plate. Body Used with Companion flanges Model material ( Meter) ( NPT, BSPT, and slip weld) Maximum capacity Working pressure Application class* A-2840 Series Aluminum M-5, M-7, M-10, M-15d 11/2 " and 2" 200 GPM (760 L/min) 150 PSI 1 (2- stage) A-2843e Aluminum MA-5, MA-7, MA-15d 1½" and 2" 200 GPM (760 L/min) 350 psi 10 ( single stage) A-2858-11 Aluminum MA-5, MA-7, MA-15d 11/2 " and 2" 200 GPM (760 L/min) 350 PSI 10 (2- stage) dRequires use of 3"x2" reducing flange between meter outlet and valve (part no. A3245). eRequires 82102 or 82102-24 pilot system. * See table on page 9. Solenoid operated control valve for refined petroleum products and LPG The A-2840 (refined fuels), A-2843e ( LPG), and A-2858-11 (LPG) solenoid-operated control valves are installed at the meter outlet and are designed especially for use with Liquid Controls LectroCount3, LCR, and LCR-II electronic registers. These solenoid operated diaphragm valves can be applied for either single or two-stage closure. Valve is suitable for horizontal or vertical installation without modification. Body Used with Companion flanges Model material ( Meter) ( NPT, BSPT, and slip weld) Maximum capacity Working pressure Application class* A-2843 Aluminum MA-5, MA-7, MA-15c 11/2 " and 2" 200 GPM 350 PSI 10, 12 (760 L/min) cRequires use of 3"x2" reducing flange between meter outlet and valve (part no. A3245). * See table on page 9. Differential valve for LPG and anhydrous ammonia The differential valve—mounted on the meter outlet and connected at the valve bonnet to the vapor eliminator on the meter—functions to stop liquid flow whenever vapor is present in the system. The valve maintains sufficient pressure to ensure that high-vapor pressure products such as LPG or anhydrous ammonia (NH 3 ) always remain in the liquid state. The valve is spring loaded and designed to fail closed.
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