Basic Information

• Brand: Berarma
• Product Type: Variable Displacement Vane Pump
• Model: 02-PHPK-2-50-FHRM
• Series: PHPK Series
• Application: Industrial Hydraulic Systems

Key Performance Parameters

• Geometric Displacement: 50 cm³/rev (according to ISO 3662)
• Actual Displacement: Approximately 51 cm³/rev (varies by ±3% due to manufacturing tolerances)
• Maximum Working Pressure: 180 bar (The maximum achievable pressure depends on the required power setting; pressure peaks exceeding 30% of the maximum operating pressure must be eliminated with appropriate measures)
• Speed Range: 800 – 1800 rpm (1800 rpm is allowed only when the maximum pressure is 160 bar)
• Recommended Rated Speed: 1450 rpm
• Maximum Flow Rate: 73 L/min (at 1450 rpm)
• Pressure Setting Range: 20 – 180 bar (manual pressure control as standard)

Structural & Dimensional Parameters

• Size Class: Size 2
• Mounting Flange: ISO 3019-2 125B4 HW (4 holes)
• Shaft Type: 32 mm diameter
• Rotation Direction: Right (clockwise) when viewed from the shaft end
• Screw Threads: Metric
• Seal Kit: NBR (Nitrile Rubber)
• Inlet Port: S dimension 1.5 inches (ø 38 mm)
• Outlet Port: P1 dimension 1 inch (ø 25 mm)
• Drain Port: G1/4 (maximum allowed drain port pressure: 1 bar; must be connected to the oil tank separately, not to the return line manifold)
• Weight: Approximately 6 kg (single pump, standard control)

Hydraulic Fluid Requirements

• Recommended Fluid: HM (ISO 6743-4), HLP (DIN 51524-2), HEES (ISO 15380); HFC (ISO 12922) with water content <40% (only for NBR seals, max pressure 100 bar, max speed 1000 rpm, temp <40°C)
• Viscosity Range: 22 – 68 cSt (mm²/s) at operating temperature; maximum starting viscosity under full flow conditions: 400 cSt
• Viscosity Index: Minimum 100 (ISO 2909)
• Fluid Temperature Range: 15 – 60°C (inlet oil temperature ≤50°C, maximum ≤70°C)
• Fluid Contamination Level: Maximum acceptable level 20/18/15 (ISO 4406) / Class 9 (NAS 1638); recommended level for longer service life 18/16/13 (ISO 4406) / Class 7 (NAS 1638)
• Inlet Pressure: 0.8 – 1.5 bar (absolute)

Other Specifications

• Noise Level: 63 – 72 dB(A)
• Drive Shaft Load: No radial or axial loads allowed
• Maximum Torque on Primary Shaft: 586 Nm
• Moment of Inertia: 0.00909 kg·m²

Main Series of Berarma Variable Vane Pumps：

Their displacement range covers 6 to 200 cc/rev, with continuous operating pressures reaching up to 16 MPa (160 bar). Specific series include:
  PLP Series:   Low-pressure variable vane pumps equipped with a mechanical pressure regulator. Specific models include, for example, 01 PLP 1 20 F H R M.
  PHP Series:   High-pressure variable vane pumps equipped with a hydraulic pressure regulator. Specific models include, for example, Berarma Vane Pump 01-PHP-1-20-F-H-R-M.
  PHPK Series:   Built upon the PHP series, this line incorporates a hydraulic horsepower limiter to optimize power consumption.
  PSP/PSPK Series:   High-performance variable vane pumps featuring a modular compensator design. Specific models include, for example, Berarma Vane Pump 02-PSP-1-20-F-H-R-M.
  PVS Series:   Variable vane pumps characterized by a compact structure, light weight, and high operating efficiency. Specific models include, for example, Berarma Vane Pump 02-PVS2-40-F-H-R-M.
  PHV Series:   A new series of high-pressure variable vane pumps capable of operating pressures up to 250 bar.
PHC Series: High-pressure variable vane pumps featuring a compact structure and stable operation.
  ATEX Series:   Including models such as PLPX, PHPX, and PHPKX, these pumps are certified under the ATEX Directive and are suitable for use in potentially explosive environments.