NWM Positive Displacement Water Meters utilize a magnetically driven, positive displacement, oscillating piston design. It is designed to measure clean potable water where flow is in one direction only in residential, commercial and industrial settings. The main cases for 1-1/2" to 2"are constructed using C87850/C89833 Brass Alloy. Measuring Chambers are constructed of a durable synthetic polymer.OPERATION: Water flows through the meter's strainer and into the measuring chamber where it drives the impeller. A driving magnet transmits the movement of the impeller to a driven magnet located within the hermetically sealed register. The magnet is connected to a gear train which translates the impeller rotates into volume totalizators displayed on the register dial face. CONSTRUCTION: NWM PMN bottom loaded Water Meter consists of three basic components: main case, measuring chamber and a sealed register. The main cases of all sizes are constructed using Brass Alloy or Bronze Alloy or Lead free Brass Alloy. Measuring Chambers are constructed of a durable synthetic polymer. Bottom plates are Brass Alloy. Registers are available as either direct read or electronic output with Plastic Register Cover and plastic Register Shroud, Brass Register Cover and brass Register Shroud AS OPTION.
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