Name: Voith IPH Internal Gear Pump | High Pressure Hydraulic Pump | Series 4/5/6
SKU: Voith IPH Internal Gear Pump

Voith IPH Internal Gear Pump

SKU: Voith IPH Internal Gear Pump

The Voith IPH Series is a premium range of internal gear pumps designed for the most demanding high-pressure industrial applications. Featuring Voith’s patented radial and axial gap compensation technology, the IPH pumps deliver outstanding volumetric efficiency and minimal pulsation even at pressures up to 330 bar. They are widely recognized as the industry benchmark for low-noise hydraulic power in plastic processing and metal forming machinery.

Key Features:

Series: IPH (Sizes 4, 5, 6)
Max. Pressure: Up to 330 bar (Continuous) / 360 bar (Peak)
Technology: Radial & Axial Gap Compensation
Noise Level: Extremely low.

Product Overview The Voith IPH Internal Gear Pump stands out due to its robust design and precision engineering. Unlike standard gear pumps, the IPH series uses a special compensation mechanism that seals the gaps between the gear and the housing dynamically based on pressure. This ensures that the pump maintains high efficiency over a very long service life, even when handling fluids with low viscosity or at extreme pressures.

Why Choose Voith IPH?

Ultra-High Pressure Capability: Rated for continuous operation at pressures (300+ bar) where other gear pumps fail.
Whisper-Quiet Operation: The optimized internal gear geometry and smooth flow characteristics significantly reduce operational noise, often eliminating the need for secondary sound damping.
Long Service Life: Hydrodynamic lubrication of the plain bearings and gap compensation reduce wear to a minimum.
Efficiency: High volumetric efficiency contributes to energy savings and reduced heat generation in the hydraulic system.

Common Applications:

Plastic Machinery: High-end Injection Molding Machines.
Press Technology: Metal folding, stamping, and shearing presses.
General Industry: Hydraulic power units requiring high reliability.
Marine & Offshore: Winches and steering gear.

Specification	Value / Description
Product Type	Internal Gear Pump (High Pressure)
Series	IPH (Sizes 4, 5, 6)
Displacement Range ( $V_g$ )	IPH 4: 10 – 32 cm³/rev IPH 5: 32 – 64 cm³/rev IPH 6: 64 – 125 cm³/rev
Continuous Pressure	Up to 330 bar (Depending on size)
Peak Pressure	Up to 360 bar
Speed Range ( $n$ )	300 – 3600 rpm (Variable by size)
Viscosity Range	10 – 300 mm²/s (Standard)
Mounting	SAE 2-bolt (Standard) / VDMA 4-bolt
Common Part Numbers	Format: IPH – [Size] – [Disp] – [Design] IPH-4-16-101 (16.1 cc/rev, 330 bar) IPH-4-20-101 (20.7 cc/rev, 330 bar) IPH-4-25-101 (25.2 cc/rev, 330 bar) IPH-4-32-101 (32.6 cc/rev, 330 bar) IPH-5-40-101 (40.5 cc/rev, 330 bar) IPH-5-50-101 (50.3 cc/rev, 330 bar) IPH-5-64-101 (64.4 cc/rev, 330 bar) IPH-6-80-101 (80.4 cc/rev, 330 bar) IPH-6-100-101 (100.5 cc/rev, 330 bar) IPH-6-125-101 (125.7 cc/rev, 300 bar)