Water pumps in boats, or marine pumps, are essential for moving water in and out of the vessel. They are used for bilge drainage, cooling engines, and supplying freshwater systems. Marine pumps are designed to withstand harsh saltwater conditions and ensure reliable operation.

Size: Typically ranges from 2 inches to 12 inches in diameter.

Grade: Marine-grade, often compliant with ISO 8846 or ABYC standards.

Viscosity: Suitable for fluids with viscosities up to 500 cSt (centistokes).

Buoyancy: Designed to be neutrally buoyant or slightly positive in water.

Material: Constructed from corrosion-resistant materials like bronze, stainless steel, or reinforced thermoplastics.

Flow Rate: Varies between 10 GPM (gallons per minute) to 500 GPM depending on application.

Pressure Rating: Typically 50 PSI to 150 PSI for standard marine pumps.

Power Source: Electric (12V/24V DC or 110V/220V AC) or mechanical (engine-driven).

Seal Type: Mechanical seals or lip seals for watertight operation.

Temperature Range: -20°C to 120°C (-4°F to 248°F) for standard models.

Weight: Lightweight designs, usually between 5 lbs to 50 lbs depending on size.

Mounting: Flange-mounted, inline, or submersible configurations.

Impeller Type: Flexible impeller, centrifugal, or diaphragm based on application.