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PRM 3" WOLTMANN HELIX STYLE WATER METER FOR TOTALIZATION AND RATE INDICATION WITH PULSE OUTPUT 3" flanged Woltmann helix style water meter for industrial use. PRM water meters are known for their wide range, simplicity, and accuracy in low quality water. Features: Pulse Output Components; Hydrocarbon Resistant Seals; Sealed Dry Dial for Clear Readings. Specifications: Woltmann helix style water meter; Cast iron meter body, epoxy coated; Accuracy class B; 6 digit mechanical roller counter; Reads in Gallons; Nominal Flow 176 gpm; Max. Flow 350 gpm; Pulse: 100 gal/pulse; Accuracy: Transitional Flow: ±5% Nominal Flow: ±2%; Maximum Water Temperature: 86°F; Maximum Water Pressure: 150 psi; Mounting Orientation: Horizontal; Materials: Body: Cast Iron ; Measuring Chamber: Polyethylene; Paint: Epoxy Coated; Seal: Black: Buna-N, White: HDPE; Not for use with Potable Water