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Gear Pumps Suppliers
Gear pumps are a common choice for moving fuel and lubricating oil around a vessel. They provide steady, predictable flow for transfer, circulation and booster duties in systems that run daily, often for long hours and at relatively high viscosities. Understanding how these pumps work, where they fit on board, and what separates good equipment from the rest is essential before engaging gear pumps suppliers for newbuilds, retrofits or replacements.
Gear Pumps for Marine Fuel and Lube Systems
A gear pump is a positive displacement unit. It traps liquid between rotating gears and the casing, then carries that fixed volume from suction to discharge. Flow is largely proportional to speed, with minimal pulsation, which makes these pumps well suited to fuel and lube oil service.
On board, you will typically see gear pumps in three main areas: fuel oil transfer, fuel service and booster systems, and lubricating oil circulation for engines, gearboxes and some deck machinery. They are also used in auxiliary duties such as boiler fuel supply or oil transfer to settling and storage tanks.
Two basic designs cover most marine applications:
- External gear pumps use two equal-sized external gears meshing inside a close-fitting casing. They are widely used where clean fuel or lubricating oil must be pumped at moderate pressures, or as part of hydraulic power packs.
- Internal gear pumps use a larger internal gear and a smaller idler gear separated by a crescent-shaped insert. They handle higher viscosity oils well, give very smooth flow, and are common in main engine and gearbox lube oil systems and fuel transfer duties.
Modern marine gear pumps often integrate features that make them easier to apply in fuel and lube systems: built-in relief valves to protect against overpressure, heating jackets for heavy fuel or cold climates, and a choice of shaft seals (packed glands, mechanical seals or, in specialized cases, magnetic drives) to manage leakage risk. Housings are usually cast iron or steel, with hardened steel gears and shafts and suitable bushings or bearings for continuous service.
For specification, technical teams usually start from the duty: fluid type and viscosity, required flow and differential pressure, temperature range, and any classification or hazardous area requirements. From there, they compare internal and external gear designs, relief arrangements, materials and seal options against the system layout and maintenance plan.
Suitable Gear Pumps Suppliers
Once your duty points are clear, the choice of gear pumps manufacturers is mainly about support in real operation. A useful partner can cover all services and match gear pump types to the capacities and viscosities you actually need on board.
Then check how their pumps are configured and documented. Look for suitable materials, heating options for heavy fuel where needed, sensible seal arrangements, built-in relief valves, and clear drawings, manuals and approvals for your class and flag.
Once you know the pump type and brands you are looking for, Records Marine helps you turn that into a practical shortlist. You can filter suppliers by location, then review company profiles to see who can support your chosen equipment in the regions where your vessels operate and at upcoming ports of call.
From there, technical and purchasing teams can contact a small group of candidates directly to confirm duty points, dimensional fit, spare parts support and delivery schedules, and build a stable base of gear pumps distributors for your fleet.
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Year Founded: 2011
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Year Founded: 2004
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Year Founded: 2018
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Year Founded: 2002
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Year Founded: 2010
Year Founded: 2005
