Voith IPV IPVP IPN Series Gear Pump | IPV6-100 IPV6-80 IPN5-64 | Internal High Pressure Pump

The IPV, IPVP, and IPN Series high-pressure internal gear pumps from Chengyuan Hydraulic are premium power components fully compatible with Voith industrial standards. This series is renowned for its exceptional efficiency achieved through unique radial and axial pressure compensation technologies. For critical models like IPV 6-100 101 and IPN 5-64 141, we implement high-precision gear grinding to ensure quiet and reliable operation under peak loads. Every pump undergoes 100% simulated full-load condition testing to verify that noise levels and service life match original OEM performance, guaranteeing 100% original-place interchangeability.

Technical Specifications :

• Core Model Series: IPV 6-100 101, IPV 6-80 111, IPN 5-64 141

• Displacement Range: 3.5 cm³/rev to 250 cm³/rev (across frame sizes 3-7)

• Rated Operating Pressure: 210 – 250 bar (21 – 25 MPa)

• Peak Pressure: 330 bar (33 MPa)

• Speed Range: 400 rpm to 3600 rpm

• Noise Levels: ≤ 65 – 75 dB(A) under rated conditions

• Efficiency: Volumetric efficiency > 96% at 250 bar

• Mounting Interfaces: Compliant with SAE J744 or ISO 3019

• Seal Material: NBR (Standard) / FKM (Optional for high temps)

Key Technical Advantages:

• Dual Pressure Compensation: Utilizing a proprietary design for both radial and axial clearance compensation. Side plates and supporting elements micro-adjust according to pressure changes, minimizing internal leakage and allowing the IPV series to maintain peak efficiency even at 330 bar.

• Involute Internal Gearing: Unlike standard external gear pumps, the internal gear pair features long, smooth contact lines. This design significantly reduces flow pulsation and lowers noise levels by 10-20 dB compared to conventional pumps, making it ideal for indoor environments like injection molding workshops.

• High-Load Bearings & Durable Materials: The drive shafts are crafted from high-strength alloy steel with precise heat treatment, supported by high-load sliding bearings. This ensures tens of thousands of trouble-free hours under frequent high-pressure shocks.

• Multi-Pump Modular Flexibility: The series supports multi-stage pump combinations (e.g., IPN 6/5), allowing for distributed flow or high-low pressure control circuits. Chengyuan’s optimized coupling process ensures perfect coaxiality during multi-axial operation, preventing premature shaft wear.

Application Areas:

• Plastics Machinery: Servo-driven power systems for injection molding (where low noise is critical).

• Forming Presses: Metal stretching, bending, and cutting machinery.

• Industrial Material Handling: Lifts and automated production lines requiring steady, high-pressure output.

Expert Maintenance Tips:

• Inlet Vacuum Management: Internal gear pumps are sensitive to suction conditions. Ensure the inlet vacuum does not exceed -0.2 bar. High suction resistance will cause cavitation noise and damage the gear set.

• Priming and Air Bleeding: Always fill the pump with hydraulic oil before the first startup. We recommend “inching” the motor for 5-10 seconds at low pressure to purge any trapped air.

• Particle Monitoring: Because of the precision-fit compensation components, we recommend a filtration rating of 10μm or better to maintain fluid cleanliness at ISO 4406 19/17/14 or higher.