German Made High Pressure 280 bar Internal Gear Pump Original Rexroth Hydraulic Gear Pump

The Rexroth PGH series comprises fixed displacement, gap-compensated internal gear pumps known for their robust construction and efficient performance. Key features include high operating pressures (up to 350 bar), a wide speed range (typically 200 to 3000 rpm), and compatibility with various hydraulic fluids like HLP, HEES, and HFDU. Their design ensures smooth operation, precise flow control, and through-drive capability for multi-pump configurations.

PGH pumps are widely used in industrial hydraulic systems, including ventilation and pressure compensation systems, mobile machinery, machine tools, and automation equipment. They are suitable for applications requiring reliable, continuous flow under moderate to high pressures.

PGH pumps are compatible with standard hydraulic fluids such as HLP, HEES (synthetic esters), and HFDU (phosphate esters). The optimal operating viscosity range is 10 to 300 mm²/s. Fluid temperature should generally be maintained between -10°C to +80°C for HLP fluids and -10°C to +50°C for special fluids.

Common failure causes include:

• Fluid Contamination: Dirt, debris, or air bubbles can cause internal wear, clogging, and failure.
• Overheating: Excessive heat can break down lubricants, damage seals, and cause bearing failure.
• Mechanical Wear and Tear: Misalignment or excessive pressure can accelerate wear on components.
• Cavitation: Occurs when the pump is starved of fluid, leading to noise and damage.