Piston Pump Repair

Coastal Hydraulics specializes is the repair and overhaul of hydraulic systems and components. You can count on us to excel on your next piston pump repair or overhaul.

Hydraulic piston pumps can handle large flows at high hydraulic system pressures. Typical applications are mobile and construction equipment, marine auxiliary power, metal forming and stamping, machine tools and oil field equipment.

In these pumps, the pistons accurately slide back and forth inside the cylinders that are part of the hydraulic pump. The sealing properties of the pistons are excellent.

Key features of hydraulic piston pumps are:

• - Compact size
• - High power density
• - Optimum efficiency and reliability
• - High speed and torque
• - High operating pressures

Hydraulic piston pumps operate at very high volumetric efficiency levels due to low fluid leakage. The plungers may consist of valves at the suction and pressure ports or with input and output channels. Piston pumps with valves at the ports are better suited to operate at higher system pressures due to better sealing characteristics.