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T1: What are the core performance parameters of the HHPC P70-B3H-ED3-F-R-2A high-pressure plunger pump?
A1: The key performance indicators of this plunger pump are as follows:
- Déplacement: 70 cm³/r (le “P70” in the model name directly represents the displacement specification).
- Pression nominale: Maximum continuous working pressure reaches 350 bar (5075 psi); short-term peak pressure can withstand up to 400 bar (5800 psi), adapté aux systèmes hydrauliques haute pression.
- Plage de vitesse: Minimum stable operating speed is 600 RPM; maximum allowable input speed is 2800 RPM, compatible with most diesel or electric drive systems.
- Flux théorique: At the maximum speed of 2800 RPM, le débit théorique est d'environ 196 L/min (calculated by displacement × speed), meeting the oil supply demand of multi-execution component systems.
- 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).
T2: What do the code segments in the HHPC P70-B3H-ED3-F-R-2A model name represent?
A2: Each code in the model has a clear technical meaning, helping to identify the pump configuration:
- “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”: Code du mode de contrôle, standing for electric proportional control with 3-stage pressure adjustment, supporting precise flow and pressure regulation via electrical signals.
- “FR”: Directional control code, indicating the pump supports forward and reverse oil output, suitable for equipment requiring bidirectional hydraulic drive.
- “2UN”: Seal and material code, meaning it adopts 2nd-generation high-temperature resistant oil seals (caoutchouc nitrile + PTFE composite) and grade A wear-resistant internal plungers.
T3: What structural advantages make the HHPC P70-B3H-ED3-F-R-2A suitable for high-pressure working conditions?
A3: This plunger pump has 3 key structural designs to ensure reliability under high pressure:
- 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.
- 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 (jusqu'à 92% dans des conditions nominales).
- 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.
