Hand pumps on ships are manually operated devices used to move fluids like water or oil in marine environments. Marine pumps, including hand pumps, are essential for bilge drainage, ballast transfer, and emergency dewatering. They are designed to be durable, corrosion-resistant, and reliable for critical onboard operations.

Size: Typically ranges from 1.5 inches to 4 inches in diameter.

Grade: Marine-grade materials compliant with ISO 8846 or equivalent standards.

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

Buoyancy: Designed to float in water, often with buoyant handles or materials.

Material: Constructed from corrosion-resistant materials like stainless steel (316L), brass, or high-density polyethylene (HDPE).

Pressure Rating: Operates at pressures up to 10 bar (145 psi).

Temperature Range: -20°C to 80°C (-4°F to 176°F).

Flow Rate: Typically 10-30 liters per minute (2.6-7.9 gallons per minute).

Weight: Varies between 2-10 kg (4.4-22 lbs) depending on size and material.

Seals: Nitrile or Viton seals for chemical and fuel resistance.

Mounting: Portable or fixed with deck-mounted options.

Certification: Complies with SOLAS, ABS, DNV, or other marine safety standards.