Parker Hannifin P2105 Variable Displacement hydraulic pump

The P2105 hydraulic pump features a swashplate design; by adjusting the tilt angle of the swashplate, the stroke of the plungers can be varied—when the swashplate angle is set to zero, the pump's flow rate also drops to zero.

The P2105 offers a variety of control options that can be adjusted directly in the field:

Pressure Compensation Control (PC): Automatically reduces the pump's displacement (unloading) when system pressure reaches a preset value. This function is ideal for maintaining a load while avoiding energy loss caused by flow bypassing through a relief valve.

Load Sensing Control (LS): Matches the output flow rate to the actual demand of the actuators (such as hydraulic cylinders or motors). This can result in energy savings of 30% to 40% in cyclical applications, such as press feeding or conveyor belt drives.

Power (Torque) Limiting Control: Effectively prevents damage to the engine or drive motor caused by overloading by automatically reducing displacement under highpressure operating conditions.

Manual or Hydraulic Remote Control (HPC): Allows for direct adjustment by an operator or adjustment via a pilot signal.

Applications:

The P2105 is by no means an ordinary, generic offtheshelf pump. It is specifically engineered for demanding applications that require variable flow rates but do not necessitate complex electronic control systems.

1.Mobile Equipment

Small to MediumSized Wheel Loaders-The steering system and work implements share a single pump.

Aerial Work Platforms-Enables smooth and steady platform movement, eliminating the jerky sensation often associated with starting and stopping.

Sweepers and Floor Scrubbers-Utilizes a lowflow mode for unloaded travel and a highflow mode to drive the brush motors.

2.Industrial Machinery

Pallet Changers-Facilitates rapid feeding (high flow, low pressure), followed by a switch to clamping mode (low flow, high pressure).

Injection Molding Machine Clamping Units-Offers significant energy savings compared to fixeddisplacement vane pumps.

3.Marine and Offshore Engineering

Deck Machinery-Anchor windlasses and mooring winches can fully utilize the pressure compensation feature to maintain tension while preventing system overheating.

Installation and Maintenance

Critical points to observe when handling the P2105:

Case Drain Line-Never Overlook

The P2105 requires that the case drain line remain unobstructed and return directly to the reservoir; the line must be sized to ensure that back pressure is maintained at 5 PSI or lower. Failure to observe this requirement will result in the rupture and failure of the pump shaft seal due to excessive pressure within a matter of hours.

Sensitivity to Contamination

The P2105 operates stably and efficiently in hydraulic fluid environments with a cleanliness level of ISO 18/15/13 or higher (for extended service life, a cleanliness level of 18/13/10 is recommended). If fluid contamination exceeds this standard (i.e., contains coarser particles), the servo piston control spool may become stuck, leading to severe fluctuations or instability in the pump's displacement output.

For more information on the P2105 hydraulic pump, please visit https://www.baolilaihydraulic.com/product/.

Specifications

Selection Table

Q1: Can the P2105 run in reverse rotation?

A1:No. It is directional. Order the correct rotation (clockwise or counterclockwise viewed from shaft end). Reversing direction will starve the suction side and destroy the pistons.

Q2: How noisy is the P2105?

A2: At 1800 RPM and 2000 PSI, typical sound pressure is 75–78 dBA—quieter than gear pumps, thanks to the nine-piston design. Unusual knocking indicates loose swashplate bearings.

Q3: What is the price and delivery time of the P2105 hydraulic pump?

A3: The specific price and delivery time will be provided based on the specific model you provide.

Q4:How to purchase a P2105 hydraulic pump?

A4:You can visit https://www.baolilaihydraulic.com/contact/ to contact us and purchase our products through various methods.