Neptune

Neptune Pumps & Systems at Cummins-Wagner

Precision Chemical Metering Solutions for Water & Industrial Processes

Cummins-Wagner is your trusted source in Virginia and Maryland for Neptune, a premier manufacturer of chemical metering pumps, chemical feed systems, and tank mixers. Designed for accuracy and reliability, Neptune’s equipment is ideal for treating potable water, wastewater, boiler and cooling systems, and a wide range of industrial process streams.

Why Choose Cummins-Wagner for Neptune Pumps?

  • Neptune distributor in VA and MD
  • Decades of experience in chemical feed & dosing systems
  • On-site support and custom skid integration
  • Local inventory and OEM parts
  • Start-up, service, and calibration assistance

Industries Served by Neptune

  • Municipal Water & Wastewater
  • Industrial Water Treatment
  • Power Generation
  • Pulp & Paper
  • Food & Beverage Processing
  • Chemical Processing
  • Agriculture & Fertilizer Injection
  • HVAC (Boiler/Cooling Towers)

Neptune Product Offerings

Solenoid-Driven Metering Pumps (Series MP & PZ)

  • Compact and cost-effective for light-duty applications
  • Adjustable stroke length and frequency
  • Digital control interface and manual dial options
  • Excellent for sodium hypochlorite, acids, and polymers
  • Ideal for cooling tower, boiler, and potable water feed

Mechanically Actuated Diaphragm Pumps (Series 500)

  • Simple, durable design for continuous duty
  • Flow rates from <1 to 275 gph
  • Pressure ratings up to 235 psi
  • Compact footprint for skid and panel mounting
  • Manual or motor-actuated controls available

Hydraulic Diaphragm Pumps (Series 7000 & 8000)

  • For high-pressure or high-volume chemical injection
  • Internal relief valves protect against overpressurization
  • Leak-free operation with double-diaphragm design
  • Meets API 675 standards for industrial dosing
  • Used in power plants, refineries, and process industries

Chemical Feed Systems & Skid Packages

  • Pre-piped, pre-wired, and factory-tested systems
  • Include pumps, tanks, mixers, panels, and calibration columns
  • Customizable to meet flow, pressure, and chemical compatibility
  • Reduce field labor and startup time
  • Integration with PLC/SCADA available

Mixers (BN Series)

  • Direct drive and gear-reduced configurations
  • Designed for mixing polymers, slurries, and corrosive fluids
  • Clamp- or flange-mounted for tank integration
  • Optional TEFC or explosion-proof motors
  • Shaft lengths and impellers customized to tank size and viscosity

Local Support, System Design & Service

Cummins-Wagner brings full-service support to your Neptune chemical feed projects across VA and MD. Our capabilities include:

✔ Pump and mixer selection based on chemical and process needs
✔ Custom skid design and fabrication
✔ Installation supervision and commissioning
✔ Troubleshooting, maintenance, and calibration services
✔ Emergency parts and system rebuilds

Learn more about our service capabilities in VA & MD.

Engineered Chemical Dosing Solutions Since 1961

Part of the PSG Dover Group, Neptune has been a leader in chemical feed and agitation technologies for over 60 years. Known for their high repeatability, modular designs, and industry-specific configurations, Neptune metering pumps are trusted by utilities, industrial plants, and OEMs alike.

Manufactured in the USA and supported by a global distribution network, Neptune continues to innovate with digital controls, hydraulically actuated diaphragm designs, and pre-engineered feed systems that simplify setup and streamline compliance.

Your Local Neptune Distributor in VA & MD

Cummins-Wagner is the authorized distributor of Neptune chemical metering pumps and feed systems across Virginia and Maryland, including Baltimore, Salisbury, Richmond, and Northern VA. Our in-house team of engineers, fabricators, and technicians supports full-system delivery—from selection to service.

  • Maryland (including Washington DC, DE, Northern VA, and Eastern Panhandle of WV), with offices in Annapolis Junction and Salisbury, MD.
  • Virginia (serving the state of VA), with an office in Ashland, VA.

Ready to Improve Your Chemical Feed System?

Contact Cummins-Wagner today to learn how Neptune pumps, mixers, and systems can bring precision, safety, and efficiency to your process.

FAQ: Neptune Chemical Metering Pumps & Systems

What is the difference between solenoid and motor-driven pumps?

Solenoid pumps are typically low-flow, economical options, while motor-driven pumps offer higher capacity and pressure for demanding applications.

Can Neptune pumps handle viscous or abrasive chemicals?

  • Yes. Neptune offers models with high-viscosity handling and materials like PVC, Kynar®, and stainless steel for chemical compatibility.

Are Neptune feed systems customizable?

  • Absolutely. Cummins-Wagner can engineer and build custom skids with Neptune components tailored to your chemical, flow rate, and control needs.

Do Neptune pumps comply with safety or industry standards?

  • Yes. Neptune’s hydraulic diaphragm pumps can meet API 675, and most products are compliant with NSF, CE, and ATEX requirements.

Can I retrofit an old pump system with Neptune?

  • Yes. Neptune’s modular configurations and Cummins-Wagner’s fabrication team make retrofits fast and straightforward.

What controls are available for Neptune pumps?

  • Manual, analog, and digital control interfaces are available, including remote control, 4–20mA input, pulse control, and batch operation.

Are Neptune mixers explosion-proof?

  • Explosion-proof motor options are available for hazardous area installations.

How often do Neptune pumps need maintenance?

  • Maintenance intervals depend on duty and chemical, but diaphragm replacement is typically annual, with long-term reliability between major service events.

Is startup and calibration included?

  • Yes. Cummins-Wagner offers onsite setup, calibration, and training for all Neptune systems.

Can Neptune systems be integrated with SCADA or PLCs?

  • Yes. Most Neptune pumps and systems offer digital integration via Modbus, relay contacts, or analog signal inputs.

Trust Neptune for Accurate Chemical Dosing and Long-Term Reliability

Work with Cummins-Wagner to select, design, and support the Neptune feed system that keeps your process controlled and compliant.

Request a Quote | Talk to a Chemical Feed Expert | Schedule Service or Calibration