LMI Series G Metering Pump

SERIES G METERING PUMP

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The LMI Series G Metering Pump is designed for high-output applications in the toughest environments. Available in SD and SG models, this motor-driven pump features rugged aluminum construction and a mechanically actuated diaphragm, delivering flow rates from 0.12 to 300 GPH (0.45 to 1136 LPH) and pressures up to 175 psi (12 bar). Certified to NSF/ANSI 61 and 372, it’s perfect for water treatment tasks like coagulation and flocculation, as well as metal finishing, electroplating, anodizing, and chemical processing. With a 10:1 turndown ratio, external speed control options, and a PTFE diaphragm, it ensures smooth, precise dosing with minimal system shock.

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The LMI Series G Metering Pump stands out as a powerhouse for high-flow, low-pressure chemical dosing. Engineered with a robust metallic worm gear drive and variable eccentric stroke adjustment, it offers durability and precision in harsh environments. Available in two models—SD (up to 115 GPH) and SG (up to 300 GPH)—it features a PTFE high-performance diaphragm and oil-bath gear lubrication for long life. Certified with NSF/ANSI 61 and 372, it meets municipal compliance standards, making it a top choice for water treatment professionals. Its versatility supports acids, slurries, and out-gassing fluids, ensuring reliable performance across industrial applications.
 
Manufacturer: LMI Pumps (Accudyne Industries)
Product Type: Motor-Driven Mechanically Actuated Metering Pump
Applications: Water treatment, metal finishing, electroplating, anodizing, chemical processing, municipal dosing
Key Features:
  • Flow range: 0.12-300 GPH (0.45-1136 LPH)
  • Max pressure: 175 psi (12 bar)
  • 10:1 turndown ratio via stroke adjustment
  • NSF/ANSI 61 and 372 certified
Flow Rate:
  • SD2: 0.12-0.7 GPH (0.45-2.6 LPH)
  • SD4: 12 GPH (45 LPH)
  • SD7: 50 GPH (189 LPH)
  • SD8: 115 GPH (435 LPH)
  • SG5: 106 GPH (400 LPH)
  • SG6: 147 GPH (556 LPH)
  • SG7: 300 GPH (1136 LPH)
Maximum Pressure: 50-175 psi (3.4-12 bar, model-dependent)
Stroke Adjustment: Manual via eccentric dial (10:1 turndown)
Materials: PVC, PVDF, 316 Stainless Steel (liquid end options)
Power: 115/230V or 230/460V, 50/60 Hz (model-specific)
Connections: 1/2” NPT or tubing (model-specific)
Weight: Approx. 20-40 lbs (9-18 kg, varies by model)
Certifications: NSF/ANSI 61, 372, ETL, UL, CUL