BERARMA PHPK PUMPS CATALOG
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The PHPK pumps are variable-displacement vane pumps designed for high operating pressures, equipped with a constant-power hydraulic pressure control device that allows the delivered flow to be instantly adjusted according to the circuit’s requirements.
Variable-displacement vane pumps are volumetric pumps; therefore, they deliver a maximum flow rate equal to their displacement multiplied by the rotational speed. The operating pressure is determined by the pressure losses that the fluid encounters along its path within the system.
When the delivery pressure (in the system) equals the pump’s set pressure, the delivered flow automatically adjusts to the values required by the system; once this value is reached, the pump reduces its flow down to zero while maintaining the pressure nearly constant. In conditions where no flow is required, the pump delivers only the oil needed to compensate for possible leakages and pilot controls. Moreover, the constant-power control device allows optimal utilization of the power absorbed by the pump.
The operating principle is based on maintaining the product of flow × pressure (q × p) nearly constant, so that an increase in pressure corresponds to a proportional decrease in flow and vice versa, following a hyperbolic characteristic curve.
The Berarma PHPK Pumps are variable-displacement vane pumps with a constant power hydraulic compensator. The adjustment keeps the product flow × pressure (q × p) practically constant: as pressure increases, flow decreases, and vice versa, following a hyperbolic characteristic curve. The pump instantly adjusts the flow to match the circuit demand; when the delivery pressure reaches the set value, the flow is reduced down to zero, maintaining the pressure almost constant. In zero-flow conditions, it delivers only the oil needed to compensate for leakages and pilot controls.
Note: the maximum achievable pressure depends on the power setting required.
Designed for cycles with two active phases: fast approach at low pressure and work at low speed and high pressure (e.g., bending, deep-drawing, and cutting presses). This configuration can allow the use of a single pump instead of two.
Internal cartridge with dual suction and delivery passages.
Double axial hydrostatic compensation on the distribution plates.
Operating pressure: 180 bar.
Declared benefits: maximum quietness, high efficiency, long service life, circuit economy and simplification, modularity, energy saving.
Sizes and nominal displacements (cm³/rev):
1: 20–25–32 · 2: 40–50–63 · 3: 80–100–120.
Flow rates at 1450 rpm (l/min): 29–36–47 · 58–73–92 · 116–145–174.
Available pressure controls: Standard (single stage), PCS002 (single stage with remote adjustment), PCS003 (two pressure stages, one fixed at the minimum setting).
Ordering: specify the power for the constant power device setting and the desired maximum pressure; Berarma performs calibration on a test bench.
Flanges/connections: ISO 3019-2 4 holes, BSP Gas / SAE 3000.
Seals: NBR or FPM–Viton.
Direction of rotation: right-hand (clockwise) viewed from the shaft side.
Shaft loads: radial/axial forces not allowed.
Rotational speed range:
Gr. 1: 800–1800 rpm · Gr. 2–3: 800–1500 rpm (1800 allowed with Pmax 160 bar).
Suction pressure: 0.8–1.5 bar absolute · Max drain: 1 bar.
Viscosity: 22–68 cSt in operation · Start-up (open delivery): 400 cSt max · Viscosity index: ≥100 (ISO 2909) · Fluid inlet temperature: +15 / +60 °C.
Fluids: HM (ISO 6743-4), HLP (DIN 51524-2), HEES (ISO 15380) and HFD (ISO 12922) with FPM–Viton up to Pmax 160 bar; HFC (ISO 12922) with water <40%, NBR seals, Pmax 100 bar, Vmax 1000 rpm, T <40 °C.
Fluid contamination: max ISO 4406 20/18/15 – NAS 9; recommended ISO 4406 18/16/13 – NAS 7.
Moment of inertia (kg·m²): 0.0005 (gr.1) · 0.00909 (gr.2) · 0.015 (gr.3).
Single pump mass (kg): Standard: 23 / 48.5 / 59 (gr.1/2/3) · PCS002: 23.2 / 48.8 / 59.2 · PCS003: 22.7 / 48.3 / 58.8.
| Model | Nominal displacement (cm³/rev) | Flow at 1450 rpm (l/min) | Max pressure (bar) | Rotational range (rpm) | Operating notes |
|---|---|---|---|---|---|
| 01 PHPK 1-20 | 20 | 29 | 180 | 800–1800 | Pmax depends on power setting |
| 01 PHPK 1-25 | 25 | 36 | 180 | 800–1800 | Pmax depends on power setting |
| 01 PHPK 1-32 | 32 | 47 | 180 | 800–1800 | Pmax depends on power setting |
| 01 PHPK 2-40 | 40 | 58 | 180 | 800–1500 | Up to 1800 rpm with Pmax 160 bar; Pmax depends on power setting |
| 01 PHPK 2-50 | 50 | 73 | 180 | 800–1500 | Up to 1800 rpm with Pmax 160 bar; Pmax depends on power setting |
| 01 PHPK 2-63 | 63 | 92 | 180 | 800–1500 | Up to 1800 rpm with Pmax 160 bar; Pmax depends on power setting |
| 01 PHPK 3-80 | 80 | 116 | 180 | 800–1500 | Up to 1800 rpm with Pmax 160 bar; Pmax depends on power setting |
| 01 PHPK 3-100 | 100 | 145 | 180 | 800–1500 | Up to 1800 rpm with Pmax 160 bar; Pmax depends on power setting |
| 01 PHPK 3-120 | 120 | 174 | 180 | 800–1500 | Up to 1800 rpm with Pmax 160 bar; Pmax depends on power setting |
Head Office:
Strada Statale 7 Via Appia, 68
82011 Airola (BN)
Legal Headquarters:
Via Tufara Scautieri, 6
83018 San Martino Valle Caudina (AV)
Tel.: +39 0823 950994
Fax: +39 0823 1607499
E-mail: info@lubeteam.it