High Pressure Taiwan China HHPC Plunger Pump Oil Pump HHPC P70-B3H-ED3-F-R-2A

Q1: What are the core performance parameters of the HHPC P70-B3H-ED3-F-R-2A high-pressure plunger pump?

1. Displacement: 70 cm³/r (the “P70” in the model name directly represents the displacement specification).
2. Pressure Rating: Maximum continuous working pressure reaches 350 bar (5075 psi); short-term peak pressure can withstand up to 400 bar (5800 psi), suitable for high-pressure hydraulic systems.
3. Speed Range: Minimum stable operating speed is 600 rpm; maximum allowable input speed is 2800 rpm, compatible with most diesel or electric drive systems.
4. Theoretical Flow: At the maximum speed of 2800 rpm, the theoretical flow rate is approximately 196 L/min (calculated by displacement × speed), meeting the oil supply demand of multi-execution component systems.
5. Oil Viscosity Adaptability: Works normally with hydraulic oil of 10-1000 cSt, adapting to temperature changes in working environments (ranging from -20°C to 80°C).

Q2: What do the code segments in the HHPC P70-B3H-ED3-F-R-2A model name represent?

• “P70”: Basic model, indicating the displacement is 70 cm³/r (plunger pump series).
• “B3H”: Structural and installation code, representing the pump’s flange type (SAE B standard) and shaft end configuration (3-keyway design for stable power transmission).
• “ED3”: Control mode code, standing for electric proportional control with 3-stage pressure adjustment, supporting precise flow and pressure regulation via electrical signals.
• “F-R”: Directional control code, indicating the pump supports forward and reverse oil output, suitable for equipment requiring bidirectional hydraulic drive.
• “2A”: Seal and material code, meaning it adopts 2nd-generation high-temperature resistant oil seals (nitrile rubber + PTFE composite) and grade A wear-resistant internal plungers.

Q3: What structural advantages make the HHPC P70-B3H-ED3-F-R-2A suitable for high-pressure working conditions?

1. Core Component Material: The cylinder block is made of high-strength forged steel (SCM440), and the plungers are treated with chrome-plating + polishing (surface roughness Ra ≤ 0.2 μm), enhancing wear resistance and pressure resistance.
2. Pressure-Balanced Design: Equipped with a built-in pressure-compensated valve and a multi-layer oil distribution plate, which balances the internal pressure of the pump, reduces leakage, and improves volumetric efficiency (up to 92% under rated conditions).
3. Heat Dissipation Structure: The pump body adopts a finned heat dissipation design, increasing the heat dissipation area by 30% compared to ordinary plunger pumps, effectively controlling the oil temperature rise during long-term high-pressure operation.