Neptune metering pumps

Neptune specializes in precise chemical dosing and offers a wide range of hydraulic, mechanical, and electronic diaphragm metering pumps. These solutions are designed especially for water treatment, chemical processing, energy sector, and agricultural applications. Neptune pumps are known for accuracy, reliability, and ease of maintenance.

Why Choose a Neptune Metering Pump?

• Accuracy and Repeatability:Each stroke delivers an exact amount of liquid – critical for chemical dosing.
• Wide Model Range:Hydraulic, mechanical, and electronic diaphragm pumps for various pressure and flow requirements.
• High Pressure and Viscosity:Suitable for highly viscous fluids and high-pressure dosing applications.
• Easy Maintenance:EZE-Clean™ valves allow cleaning without disassembling the piping.
• Automation:Electronic stroke length adjustment and 4–20 mA signal control integrates with process control systems.
• Durable Construction: Material options include 316SS, PVC, PVDF – excellent chemical compatibility

Series and Features

500 Series – Hydraulic Diaphragm Pumps

• Suitable for general chemical dosing applications.
• Flow: 3.03–355 L/h
• Maximum Pressure: up to 206 bar
• Materials: 316SS, C-20, PVC, PVDF

5003/5005 – Low-Flow Models

• Extremely precise dosing at very low flow rates.
• Applications: oil & gas industry, corrosion inhibitors.
• Flow: 1.3–1.9 L/h
• Maximum Pressure: 206 bar

600 Series – High-Flow Models

• Designed for high-pressure and high-flow processes.
• Flow: 477–2426 L/h
• Maximum Pressure: 41 bar

6000 Series – Low-Flow / High-Pressure

• Flow: 16–131 L/h
• Maximum Pressure: up to 276 bar

MP7000/7100 – Mechanical Diaphragm Pumps

• Compact solution for smaller dosing needs.
• Suitable for water treatment and chemical feed.

PZ Series – Electronic Diaphragm Pumps

• Digital control, excellent accuracy and automation.
• Ideal for low-pressure and low-flow applications.

Typical Applications

• Water treatment (disinfection, pH control)
• Chemical industry (reaction control)
• Oil & gas industry (corrosion prevention, antifoam)
• Energy sector (boiler chemicals, cooling towers)
• Agriculture (fertilizer and pesticide dosing)

Technologies That Set Neptune Apart

• Variable Oil By-Pass™: Improves valve performance and accuracy.
• EZE-Clean™ Valves: Easy maintenance without dismantling piping.
• Electronic Stroke Adjustment: Capacity controlled by process signals.
• Hydraulically Balanced Teflon® Diaphragm: Reduces stress and extends service life.