Lineshaft pumps
API 610-compliant Vertical Lineshaft Pumps for Offshore and Marine Applications
Eureka’s API 610-compliant Lineshaft Pumps are vertical turbine pumps engineered for long-life, high-performance operation in offshore and marine environments. Designed for continuous duty and minimal maintenance, these pumps offer superior reliability, efficiency, and versatility. The Eureka Lineshaft pumps are ideal for FPSOs, platforms, semi-submersibles, and onshore facilities, with a proven service life exceeding 30 years. Configurable for multiple applications, including seawater lift, ballast, bilge, firewater, cargo transfer and process fluid handling.
All units are designed in accordance with API 610 and NORSOK requirements, comply with the EU Machinery Directive 2006/42/EC, and can be ATEX and IECEx certified for use in hazardous environments.
Main Features & Benefits
- API 610-compliant vertical turbine design for critical offshore and marine services
- Proven 30+ years of continuous operation in demanding environments
- Capacity range: 10 to 10,000 m³/h
- Pump lengths up to 50 meters
- High system availability and minimal maintenance.
- Wide material range - 25% or 22% Cr Duplex, NiAlBr, SS316, or Carbon steel
- Easy maintenance access from deck level
- Low NPSH impeller design minimizes cavitation
- High hydraulic efficiency for low energy consumption
- Standard dry-mounted electric motor (no power/zone/voltage limitations)
- VSD and two-speed motor drive options for optimized energy use
Description
Pump
- Deck-mounted motor with sectionalized drive shaft
- Radially split diffuser-type pump bowls for optimal hydraulic performance
- High design pressure
- Modular design, with 1–8 stages for customized head performance
- Single suction impellers designed efficient operation
- Drive shaft supported by sleeve bearings lubricated by the pumped fluid
- Flanged outlet connections
Motor
- Standard dry-mounted motor for open pump rooms (no power/zone/voltage limitations)
- VSD and two-speed motor drive options for optimized energy use
- Optional IP68-rated wet-wound motor for submerged installation (SURV68™ compatible)
Riser Columns
- Flanged riser columns with spider bearings at joints
- Optional non-return valve prevents water hammer
- Flanged construction with intermediate spider bearings
Nozzles & Connections
- Standard: ANSI B16.5 150 lbs Raised Face flange
- Custom flange ratings available
- Suction strainer protects pump inlet
Sealing options
- Non-contact labyrinth seal for seawater applications
- Optional backup seal arrangement
- Single mechanical seal (API Plan 11)
- Dual mechanical seal with barrier fluid (API Plan 53B)
Bearings
- Rolling element thrust bearings
- Product-lubricated sleeve bearings
- Dry-run capable sleeve bearings
Coupling
- Spacer-type flexible coupling simplifies seal and bearing servicing
- Motor removal not required for seal/bearing changes
- Heavy-duty pedestal design
- Large service openings for ease of maintenance