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Internal Gear Pumps

Internal Gear Pumps are designed for efficient, high-pressure fluid transfer. These positive displacement pumps provide consistent flow and are ideal for handling viscous, lubricating, and aggressive fluids in a wide range of industries.

  • Internal gear pumps are robust and highly versatile positive displacement pumps designed to transfer a wide range of viscous, lubricating, or sensitive fluids with exceptional precision. Featuring an inner drive gear and an outer idler gear that rotate within a crescent-shaped casing, these pumps create a sealed cavity that moves fluid smoothly and efficiently. Known for their quiet operation, gentle handling, and excellent suction capabilities, internal gear pumps are a reliable solution for demanding industrial, chemical, and food-grade applications.


    KEY FEATURES INCLUDE: 

    • Smooth, non-pulsing flow – ideal for precision dosing and metering

    • Self-priming with excellent suction lift – capable of dry starts and handling entrained gases

    • Handles a wide viscosity range – from thin solvents to heavy oils and syrups

    • Bi-directional flow – flexible for loading, unloading, or circulation applications

    • Compact and low-noise design – suitable for confined or noise-sensitive environments


    OUR PARTNER BRANDS FOR INTERNAL GEAR PUMPS:  

    Ebsray MD and HD Series, PSG Ebsray Z Series, Viking, Tuthill, Envirogear / MAAG


    Contact Industrial Pumps Australia today for expert advice and competitive pricing on the best Internal Gear Pump for your fluid transfer needs.

  • Internal gear pumps are trusted in a broad range of industries where fluid consistency, durability, and flexibility are essential. 


    COMMON APPLICATIONS INCLUDE: 

    • Chemical and petrochemical processing - Transfers resins, solvents, polymers, isocyanates, and additives with precise flow control.

    • Food and beverage manufacturing - Pumps molasses, chocolate, edible oils, syrups, and other viscous products with minimal shear and full hygienic options.

    • Paints, coatings, and inks - Ensures steady, reliable flow for high-viscosity materials in production and packaging processes.

    • Lube oil systems and fuel transfer - Circulates lubricating oils, gear oils, and fuels in machinery, turbines, and diesel systems.

    • Cosmetic and pharmaceutical applications - Gently handles creams, gels, and lotions in hygienic environments with accurate dosing.

    • Asphalt and bitumen handling - Specialised heated models available for transferring hot, viscous materials in road and roofing operations.

  • Our internal gear pump range is engineered to perform across a variety of applications and industries. 


    AVAILABLE CONFIGURATIONS INCLUDE:

    • Standard Industrial Internal Gear Pumps – For oils, fuels, chemicals, and polymers in general processing.

    • Hygienic Internal Gear Pumps – Stainless steel construction for food, beverage, and pharmaceutical use (CIP/SIP capable).

    • Jacketed Gear Pumps – Designed for temperature-sensitive fluids such as chocolate, waxes, or bitumen.

    • Magnetically Coupled Gear Pumps – Sealless design for leak-free operation in hazardous or toxic fluid handling.

    • ATEX-Certified Models – For use in explosive or flammable environments requiring compliance.


    SPECIFICATIONS AVAILABLE:

    • Flow rates: up to 1,500 L/min (or higher on request)

    • Pressures: up to 15 bar (higher available in special models)

    • Viscosity range: 1 to 500,000+ cP

    • Temperature range: up to 300°C (with heating jacket)

    • Materials: Cast iron, stainless steel, carbon steel, or specialty alloys

    • Seal options: Mechanical seals, lip seals, double seals, or magnetic drive

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