Parker Tandem Gear Pump | PGP31B + PGP31A Combo | PGP620B0410AD1A3MT4-3S | Hydraulic Pump

Parker PGP31 & PGP620 Series High-Performance Tandem Hydraulic Gear Pumps

Product Overview: The Parker PGP Series serves as the premier power source for heavy-duty hydraulic systems, renowned for its exceptional durability and high efficiency in extreme environments. This featured selection includes high-performance tandem configurations: the combo of PGP31B196KORW10-65 + PGP31A191BERW10-14, and the advanced 600-series based PGP620B0410AD1A3MT4T-3S-620A0160XE6E5B1B1. Built with high-strength cast iron (PGP31) or precision aluminum (PGP620), these pumps maintain elite volumetric efficiency at peak pressures up to 28 MPa. Their versatile tandem architecture allows a single drive source to power two independent hydraulic circuits simultaneously, making them the first choice for OEM replacements in excavators, cranes, and heavy loaders.

Key Technical Advantages:

• Superior Pressure Resilience: Rated for a continuous operating pressure of 250 Bar with peaks reaching 280 Bar (4060 PSI), specifically reinforced to handle frequent load shocks.

• Highly Integrated Tandem Design: Supports multi-stage configurations (e.g., 41cc + 16cc combinations), significantly optimizing installation space and reducing overall system piping complexity.

• High Efficiency & Low Internal Leakage: Equipped with automatic axial pressure-compensated side plates to minimize internal leakage, maintaining efficiencies over 93% throughout its service life.

• Heavy-Duty Construction: The PGP31 utilizes reinforced cast iron bodies for superior fatigue resistance, ideal for continuous high-intensity operations in mining and harsh construction sites.

• 100% OEM Compatibility: Strictly adheres to standard interface codes (such as AD1A3, MT4T, RW10), ensuring identical flange patterns, shaft ends, and port positions for guaranteed “Plug-and-Play” replacement.

Detailed Models & Parameters:

• Core Series: Parker PGP31 & PGP620 Tandem Series.

• Model Keywords: PGP31B196KORW10-65, PGP31A191BERW10-14, PGP620B0410AD1A3MT4T-3S, PGP620A0160XE6E5B1B1.

• Displacement Matrix: Covers multi-stage flow configurations up to 41cc + 16cc/rev.

• Pressure Ratings: Rated at 25 MPa continuous; Peak up to 28 MPa (4060 PSI).

• Rotation: Multi-directional support based on specific model coding.

• Target Applications: Main/secondary pumps for excavators, wheel loader steering/lift circuits, crane outrigger controls, and large-scale industrial presses.