Company and Engineering Capability
Founded in 2004, Hunan Neptune Pump Co., Ltd. (NEP) serves industrial and infrastructure applications that require more than a catalogue-only pump choice. Its work covers design, research and development, manufacturing, testing, sales, and service.
NEP's engineering capability includes 3D design, product-data management, finite-element and critical-speed analysis, hydraulic flow-field analysis, CNC production equipment, hydraulic testing, permanent-magnet motor testing, and cryogenic pump testing.
Main Product Families
- Vertical turbine and mixed-flow pumps
- Horizontal split-case single-stage and multistage pumps
- Electric and diesel-driven fire pump sets
- Permanent-magnet cryogenic and submersible pumps
- Chemical process and magnetic-drive pumps
- Seawater and offshore-platform pumps
- Vertical sump, axial-flow, and condensate pumps
- Mobile emergency pump trucks and floating pump stations
- Integrated pump stations, control systems, and related project solutions
Final selection depends on the duty point, medium, system curve, available NPSH, materials, driver, seal arrangement, controls, standards, and site conditions.
Industries and Applications
LNG, Petrochemical, and Chemical Processing
Pump systems for LNG terminals, process-water circulation, seawater intake, firefighting, cryogenic transfer, and chemical-service duties.
Marine and Offshore
Vertical seawater pumps, platform fire-water systems, submerged seawater pumps, and related equipment for marine and offshore environments.
Power, Steel, and Heavy Industry
Large circulating-water, scale-pit, cooling-water, drainage, and process pump duties.
Municipal Water and Emergency Response
Water supply, drainage, flood control, emergency pumping, mobile rescue equipment, and floating pump-station applications.
Testing and Project Confidence
NEP operates a China Level I hydraulic test center with a 6,300 m3 test pool and capability references up to 3 m pump diameter, 20 m3/s flow, and 5,000 kW power, plus dedicated permanent-magnet motor and cryogenic pump test facilities.
These limits are useful for initial qualification. For your specific project, we help confirm test scope, measurement standards, witness requirements, and available capacity before the order is placed.
Connection With Lagersmit Sealing Solutions
NEP uses Lagersmit professional industrial shaft-sealing technology. This creates a useful coordination path where pump duty, shaft behavior, pumped medium, maintenance requirements, and sealing strategy need to be reviewed together — one inquiry can cover both the pump and the seal.
Certifications and International Supply
NEP holds management-system and product certifications covering selected products and markets, including ISO systems, CE, FM, UL, BV, CCS, EAC, GOST, and China Quality Certification Center requirements. Certification is product- and project-specific — we obtain the current documents for your exact configuration and destination market as part of the inquiry.
What To Send for Pump Selection
- Required flow and total dynamic head
- Pumped medium, solids, density, viscosity, temperature, and corrosiveness
- Suction conditions, available NPSH, and system curve
- Installation type, site elevation, and environmental conditions
- Preferred materials, driver, speed, voltage, and control method
- Required shaft seal or current seal challenge
- Applicable API, NFPA, class, national, or project standards
- Inspection, testing, documentation, and witness requirements
- Delivery location, schedule, and commissioning expectations
