Hydraulic motor pumps in marine hydraulics convert hydraulic energy into mechanical motion to power various ship systems. They are designed for high efficiency, durability, and resistance to harsh marine environments. These pumps are essential for steering, winches, and other critical marine operations.

Key specifications and technical properties of Hydraulic Motor Pumps and Marine Hydraulics:

Size: Ranges from compact units (e.g., 50mm diameter) to large systems (e.g., 500mm+ diameter).

Grade: Typically meets ISO, DIN, or SAE standards (e.g., ISO 4406 for cleanliness).

Viscosity: Operates with hydraulic fluids of 15–150 cSt (ISO VG 22 to VG 150).

Buoyancy: Designed for neutral or positive buoyancy in marine applications.

Material: Housing: Cast iron, steel, or aluminum; Seals: Nitrile (NBR) or Viton (FKM) for corrosion resistance.

Pressure Rating: 100–500 bar (1,450–7,250 psi) depending on model.

Flow Rate: 5–500 L/min (1.3–132 GPM).

Temperature Range: -20°C to 100°C (-4°F to 212°F).

Corrosion Resistance: Coatings or stainless steel for saltwater environments.

Mounting: Flange, foot, or custom marine configurations.

Hydraulic Motor Pumps and Marine Hydraulics may comply with maritime standards such as ISO, ABS, DNV, or Lloyd's Register, depending on the specific product and manufacturer. Always verify with the supplier for exact certifications.