Series G Metering Pump
Higher Output for Demanding Applications
The LMI Series G Metering Pump is built for durability and performance, designed to excel in demanding applications while ensuring compliance with NSF/ANSI 61 and 372 standards for municipal safety and reliability. This rugged pump is engineered to tackle tough challenges, making it a trusted solution for municipal and industrial water treatment processes.
Available in two motor-driven models—SD and SG—the Series G features a durable aluminum construction that withstands harsh environments and supports higher output applications. It is ideal for critical water treatment tasks such as coagulation and flocculation, delivering precise and consistent chemical dosing.
Equipped with a mechanically actuated diaphragm, the Series G ensures smooth and reliable output while reducing system shock and eliminating the risk of hydraulic oil contamination. Its heavy-duty industrial drive and advanced design combine to offer both long-lasting durability and efficiency in operation.
Key features include external speed control, corrosion-resistant stainless steel fasteners, and certifications for safe use in potable water applications. Whether for municipal water treatment or industrial processes, the LMI Series G Metering Pump is the ultimate choice for reliable performance and compliance.
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Overview
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Applications
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Specifications
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Literature
Benefits of the Series G Metering Pump
The Series G Metering Pump is built for durability and precision, making it the ideal solution for high-demand applications in challenging industrial environments. It delivers superior performance compared to solenoid and lost-motion designs, offering unmatched reliability and efficiency.
Key Benefits:
- Robust Worm Gear Drive: Features a metallic worm gear drive with an industrial-duty variable eccentric stroke adjustment, ensuring smooth velocity profiles and a 10:1 turn-down ratio.
- Durable Diaphragm Design: High-performance PTFE diaphragm minimizes stress, while all gears are oil-lubricated for extended longevity.
- Versatile Liquid End Options: Supports a wide range of applications with three frame sizes and adaptable liquid ends.
- Precise Control: Manual stroke length adjustments provide exact flow control for accurate dosing.
Standard Features:
- High flow rates up to 312 GPH (1180 LPH)
- Mechanically actuated diaphragm for unrestricted flow
- Rugged metallic housing for harsh environments
- High-efficiency motors to reduce heat buildup
- Reliable low-flow performance with precision check valves
- ±1% steady-state accuracy over a 10:1 turn-down ratio
- Wide temperature range: 14° to 122°F (-14° to 50°C)
- Protective 2-part epoxy coating
- Certified for NSF/ANSI 61 and 372 compliance
Optional Features:
- Safety and back pressure valves
- Pulsation dampeners and degassing valves
- Calibration columns and maintenance kits
The Series G Metering Pump combines advanced design, reliable performance, and versatile features, making it a leading choice for water treatment, chemical dosing, and industrial processes.
The Series G Metering Pump is expertly designed for low-pressure, high-output applications in challenging environments. Its rugged construction and dependable performance make it the perfect solution across a variety of industries, including:
- Water Treatment: Ensures precise chemical dosing for coagulation, flocculation, and other essential processes.
- Wastewater Treatment: Handles harsh chemicals and demanding conditions for effective waste management.
- Industrial Processing: Provides reliable performance for a variety of industrial applications requiring chemical metering.
- General Industry: Supports versatile applications with durable, high-output capabilities.
- Agriculture: Delivers efficient dosing for fertilizers, pesticides, and other agricultural chemicals.
- Chemical Processing: Excels in handling aggressive chemicals with precision and reliability.
- Specialized Applications: Contact your local representative for guidance on unique or custom applications.
Engineered to thrive in tough environments, the Series G Metering Pump offers unmatched reliability and performance for a broad range of industries.
Output Codes with Standard Liquid End
| Output Code | Max Capacity (GPH) | Max Capacity (L/h) | Max Pressure (PSI) | Max Pressure (Bar) |
|---|---|---|---|---|
| SD2 | 0.7 | 2.6 | 175 | 12 |
| SD4 | 12 | 45 | 150 | 10.3 |
| SD7 | 50 | 189 | 100 | 6.9 |
| SD8 | 115 | 435 | 75 | 5 |
| SG5 | 106 | 400 | 150 | 10.3 |
| SG6 | 147 | 556 | 100 | 6.9 |
| SG7 | 300 | 1136 | 50 | 3.4 |