Marine Single Screw Pump – Versatile Positive Displacement Pump for Marine Applications
Product Overview
The Marine Single Screw Pump is available in two specialized configurations: the G Series Marine Single Screw Pump and the GN Series Backpack-Type Single Screw Pump. These robust positive displacement pumps operate on the rotating meshing volume principle, utilizing an eccentric rotor rotating within a fixed stator to create consistent, non-pulsating fluid transfer. Ideal for handling sensitive, viscous, and solid-containing media, these pumps deliver gentle pumping action that preserves fluid integrity while maintaining stable pressure and flow characteristics proportional to operational speed.
Key Features & Benefits
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Gentle Pumping Action: Preserves medium structure without destruction, agitation, or shear damage
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Stable Flow Characteristics: Delivers consistent, non-pulsating flow proportional to rotational speed
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Versatile Media Handling: Efficiently transports liquids containing fibers, solid particles, and entrained gases
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Low Noise Operation: Optimized design ensures quiet performance in marine environments
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Compact Configuration: Space-saving design with flexible installation options
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Dry Run Capability: Optional dry-run protection device prevents damage during dry operation
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Integrated Safety: Optional built-in safety valve for system protection
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Corrosion Resistance: Marine-grade materials withstand harsh seawater environments
Configuration Options
G Series Marine Single Screw Pump
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Working Principle: Eccentric rotor and fixed stator create sealed progressing cavities
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Flow Characteristics: Low internal velocity with stable pressure maintenance
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Application: Ideal for sensitive media requiring gentle handling
GN Series Backpack-Type Single Screw Pump
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Installation: Horizontal mounting with flange connections
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Design: Compact axial dimensions with universal pump head compatibility
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Features: Optional dry-run protection, safety valves, and custom accessories
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Application: Broad industrial use including marine, petroleum, and chemical sectors
Performance Advantages
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Flow Range: Proportional to speed with precise control capabilities
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Pressure Stability: Maintains consistent pressure without pulsation
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Media Compatibility: Handles viscous fluids, slurries, and shear-sensitive materials
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Solid Handling: Transports media with fiber content and solid particles without clogging
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Gas Tolerance: Effectively manages entrained gases without losing prime
Typical Marine Applications
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Marine bilge and sludge pumping operations
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Fuel and lubricant transfer systems
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Ballast water and sediment handling
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Wastewater and sewage treatment systems
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Cargo tank stripping and drainage
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Chemical and additive injection
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Food-grade product transfer (with appropriate materials)
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Offshore platform fluid transfer
Industry Applications
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Shipbuilding: Main and auxiliary pumping systems
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Petroleum Industry: Crude oil, sludge, and multiphase fluid transfer
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Chemical Processing: Aggressive chemical and abrasive slurry handling
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Environmental: Waste treatment and sludge transfer operations
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Food Processing: Viscous food product and ingredient transfer
The description/sizes may be different with goods, please check with us when order.
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