Solar D Pump Series
From Neptune Chemical Pump Company Inc

Consistent Injection Rates from a Reliable Solar Pump

Neptune Solar D™ pump was developed via a joint engineering effort with our sister company, Ferguson Beauregard, part of Dover Corporation. This effort resulted in an innovative solar powered chemical injection pump for feeding a wide variety of chemicals into remote oil and gas wells where electrical power is unavailable. The Neptune Solar D is engineered to meet the needs voiced by the industry.


  • Reduce field service and downtime

  • Maximize chemical containment

  • Precise and consistent injection rates at pressures up to 1,200 psi (83 bar)

The Best Solution For Accurate Chemical Injection


  • Unique seal-less diaphragm technology eliminates chemical leaks, offers a wide range of chemical compatibility, and reduces maintenance and downtime


  • Accurate and reliable injection rates (even as pressure varies) translate into increased production, reduced chemcial expenses, and precise dosage ranging from 0-45 gallons per day

Intellectual Capital

  • For more than 50 years Neptune has provided superior service across North America; Neptune is growing its global presence daily with the same knowledgable assistance, technology, and unmatched service you've come to expect from Neptune.  


  • Sealed brushless non-sparking DC motor

  • Corrosion resistant 316 SS and PTFE standard on chemical end

  • Solar powered ideal for use in remote areas

  • Hydraulically balanced diaphragm design to reduce wear

  • Seal-less design to prevent leaks

  • Durable with few moving parts and no dynamic seals

  • Easy maintenance

  • Reduced complexity minimizes downtime and inventory requirements


  • Max Injection Pressure - 1200 psi (82.73 bar)

  • Max Output - 45 GPD (170.64 L/day)*

*Typical solar panel configurations allow only up to 10 GPD. Special solar panel configurations will be required if higher rates are necessary. 

Solar D Pump Brochure

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About Us

Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


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Water Analyzers and Controllers, Wireless Products, Corrosion Monitoring Equipment, Cooling Tower and Boiler Controllers, a wide variety of Pumps, Valves, Dataloggers and Recorders, HVAC, Instrumentation, Skids and Systems, Containers and Tanks from world leading manufacturers are products you will find on this site.

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