Voith IPH-4-25-101 Internal Gear Pump

Product Name

Voith IPH-4-25-101 Internal Gear Pump

Model Number

IPH-4-25-101

Other model designations may include:

• IPH 4-25

• IPH4-25

• IPH 4-25-101

• IPH4-25-101

Brand

Voith

Product Category

Hydraulic Internal Gear Pump

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Product Details

The Voith IPH-4-25-101 is a high-pressure internal gear hydraulic pump from the Voith IPH series. The IPH range is designed for demanding hydraulic applications, particularly systems using constant-speed drives.

The IPH series uses an internal gear pump design with radial and axial sealing-gap compensation. This design provides high volumetric and overall efficiency, low pulsation, compact construction and low noise emission.

The IPH 4–25 size has a nominal displacement of approximately 25.7 cm³/rev. At 1,500 rpm, the documented theoretical delivery is approximately 38.6 L/min. The published continuous-pressure rating for the IPH 4–25 is 250 bar, with a peak pressure rating of 315 bar under specified operating conditions.

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Description

The Voith IPH-4-25-101 Internal Gear Pump is suitable for hydraulic power units and industrial hydraulic systems requiring reliable fluid delivery, efficient operation and stable performance.

Its internal gear construction provides smooth fluid displacement and good pulsation behaviour. The pump is designed for applications where robust hydraulic power transmission and dependable continuous operation are important.

Voith IPH pumps can be configured for different installation and drive requirements. The IPH documentation specifies SAE-hole flange / ISO 3019/1 mounting options and supports right- or left-hand rotation depending on configuration.

Important: The complete technical configuration of IPH-4-25-101 should be checked against the pump nameplate, serial number and original manufacturer documentation before replacement or ordering.

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Key Features

• High-pressure internal gear pump design

• Voith IPH series

• Compact and robust construction

• High volumetric efficiency

• High overall efficiency

• Very good pulsation behaviour

• Low noise emission

• Suitable for constant-speed drive applications

• Right- or left-hand rotation depending on configuration

• Radial and axial sealing-gap compensation

• Multiple-flow configurations are available within the IPH range

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Verified Specifications – IPH 4-25

Specification	Value
Pump Type	Internal Gear Pump
Series	IPH
Size	IPH 4–25
Displacement	25.7 cm³/rev
Minimum Speed	300 rpm
Maximum Speed	3,000 rpm
Delivery at 1,500 rpm	38.6 L/min
Continuous Pressure	250 bar
Peak Pressure	315 bar
Pressure Fluid	HLP mineral oil according to DIN 51524 Part 2 or 3
Viscosity Range	10–300 mm²/s (cSt)
Permissible Start Viscosity	Maximum 2,000 mm²/s (cSt)
Fluid Temperature	-20°C to +80°C
Rotation	Right- or left-hand, depending on configuration
Mounting	SAE-hole flange / ISO 3019/1

These values apply to the IPH 4–25 pump size and are subject to the operating conditions stated in the manufacturer documentation. The “-101” configuration should be verified separately before using these values for a replacement pump.

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Applications

The Voith IPH-4-25-101 can be considered for hydraulic systems such as:

• Industrial hydraulic power units

• Manufacturing machinery

• Hydraulic presses

• Machine tools

• Injection and processing machinery

• Steel and metal processing equipment

• Marine hydraulic systems

• Hydraulic steering systems

• Construction machinery

• OEM hydraulic systems

• Constant-speed hydraulic drive systems

Voith IPH pumps are specifically described as being developed for special constant-speed drive applications.

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Why Choose a Voith IPH Internal Gear Pump?

The Voith IPH series combines a compact internal gear design with high efficiency and low pulsation. This makes it suitable for hydraulic systems where stable flow, robust construction and reliable pressure performance are important.

For replacement applications, matching the complete model code, rotation, mounting configuration, shaft configuration, ports and nameplate information is essential.

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FAQ

What is the Voith IPH-4-25-101?

The Voith IPH-4-25-101 is an internal gear hydraulic pump belonging to the Voith IPH high-pressure pump series.

What is the displacement of IPH 4-25?

The documented displacement for the IPH 4–25 is 25.7 cm³/rev.

What is the flow rate of the IPH 4-25?

At 1,500 rpm, the documented delivery is approximately 38.6 L/min under the specified conditions.

What is the maximum pressure of the IPH 4-25?

The documented continuous pressure is 250 bar, while peak pressure is 315 bar under specified operating conditions.

What hydraulic oil can be used?

The Voith documentation specifies HLP mineral oils according to DIN 51524 Part 2 or Part 3, subject to the applicable operating conditions.

Is IPH-4-25-101 suitable as a replacement for IPH 4-25?

Potentially, but the complete configuration must be checked. The 101 suffix may represent a particular configuration, so the pump nameplate, rotation, mounting, shaft and port arrangement should be matched before replacement.

Can Asia-Mech supply Voith IPH hydraulic pumps?

ASIA-MECH HYDRO-PNEUMATIC (M) SDN BHD supplies hydraulic pumps and hydraulic components for industrial and OEM applications in Malaysia and international markets. Customers can provide the pump model number, nameplate photograph or serial number for quotation and compatibility checking.

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Related Voith IPH Models

The Voith IPH family includes documented sizes such as:

• IPH 4-20

• IPH 4-25

• IPH 4-32

• IPH 5-40

• IPH 5-50

• IPH 5-64

• IPH 6-80

• IPH 6-100

• IPH 6-125

Additional configuration/model codes may exist, including variants such as 101, 111 and 171. These should be matched against the original pump identification before ordering. Asia-Mech's existing product listing also identifies multiple IPH configuration numbers, including IPH4-25-101.

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Alternative Models

Depending on required displacement and hydraulic operating conditions, alternatives within the IPH family may include:

• Voith IPH 4-20

• Voith IPH 4-32

• Voith IPH 5-40

• Voith IPH 5-50

• Voith IPH 5-64

Alternative selection must be based on displacement, pressure, speed, mounting, shaft, port configuration and rotation.

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Asia-Mech Hydraulic Pump Supply

ASIA-MECH HYDRO-PNEUMATIC (M) SDN BHD supplies hydraulic pumps, hydraulic motors, hydraulic valves, hydraulic cylinders, pneumatic components and industrial automation components.

We support customers in:

Manufacturing | Construction | Palm Oil Mills | Mining | Marine | OEM Machine Builders

Delivery in Malaysia

Perlis, Penang, Kedah, Perak, Pahang, Kuala Lumpur, Selangor, Melaka, Johor, Kelantan, Kuantan, Sabah and Sarawak.

International Delivery

Malaysia, Singapore, Thailand, Indonesia, Philippines, Vietnam, Europe and worldwide.

For the Voith IPH-4-25-101, please provide the model number and nameplate/photo when requesting a quotation so the exact configuration can be checked.

ASIA-MECH HYDRO-PNEUMATIC (M) SDN BHD
Tel: 05-282 1518
Mobile / WhatsApp: +60 16-550 2288
Email: asiamech88@gmail.com

Datasheet, catalogue and technical documentation are available subject to product/model availability.

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Meta Title

Voith IPH-4-25-101 Internal Gear Pump | Malaysia Supplier

Meta Description

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IPH Voith Internal Gear Pump SUPPLY BY ASIA-MECH MALAYSIA PHILIPINES THAILAND INDONESIA

IPH Voith Internal Gear Pump Type:-
IPH4-25   
IPH4-25-101   
IPH-4-25-101   
IPH4-32 
IPH4-32-101   
IPH4-32-111   
IPH5-25-101 

IPH5-25-111   
IPH5-40   
IPH5-40 -111   
IPH5-40-101   
IPH5-50   
IPH5-50-101 
IPH5-50-111   
IPH5-64   
IPH5-64 -101   
IPH5-64-111   

IPH6-100-101   
IPH6-100-101I   
IPH6-100-111   
IPH6-100-171   
IPH6-125 -171 
IPH6-125-101   
IPH6-125-111   
IPH6-160-101   
IPH6-160-111   

IPH6-160-171   
IPH6-250-101   
IPH6-250-111   
IPH6-250-171   
IPH6-80   
IPH6-80-101   
IPH6-80-111 
IPH6-80-171   
IPH7-100 -171   

IPH7-100-101   
IPH7-100-111   
IPH7-125-101   
IPH7-125-111   
IPH7-125-171   
IPH7-160-101   
IPH7-160-111   
IPH7-160-171   
IPH7-200-101 

IPH7-200-111   
IPH7-250-101   
IPH7-250-111 
 IPH7-250-171   
IPH7-80-101   
IPH7-80-111   
IPH7-80-171   
IPM4-10-100   
IPM4-13-100   

IPM4-16-100   
IPM4-20-100   
IPM4-6   
IPM4-6.5-100   
IPM4-8-100   
IPM5-25-100   
IPM5-32-100   
IPM5-40-100   
IPM6-50-100   
IPM6-64-100 

IPM6-80-100 
IPN4-32 -100   
IPN5 -100   
IPN5-125-141   
IPN5-32-100   
IPN5-64-100 
IPN5-80 
IPN6-125   
IPN6-200141