HW double entry twin screw pump for HFO

A heavy-duty double-entry twin-screw positive-displacement pump designed for reliable transfer of high-viscosity and multiphase liquids such as heavy fuel oil (HFO), residual oils and product oils. The unit uses an intermeshing power rotor and idler rotor to form constant-volume sealing chambers between the rotors and the casing; as the rotors turn, fluid is carried smoothly from the suction side to the discharge port, producing a steady, low-pulsation flow.

Key features

• Positive-displacement twin-screw design for consistent, non-pulsating flow and accurate volumetric transfer
• Robust construction for high-viscosity fluids, oil–gas mixtures and shear-sensitive media
• Compact layout with high-speed capability, low noise and low vibration
• Strong self-priming ability and reliable operation in continuous duty
• High efficiency and long service life when installed and maintained per supplier guidance

Typical applications

• Petroleum and marine: HFO, heavy fuel oil transfer, bunkering, cargo stripping, booster and service pumps
• Petrochemical and refining: lubrication oils, fuel oils, residual oil, asphalt, polymer solutions and light hydrocarbons
• Chemical processing: acids, alkalis, resins, glycerol and other viscous or corrosive liquids (material selection required)
• Storage, terminals and tank farms: ship loading/unloading, pipeline transfer, tank filling and emptying
• Food and specialty: viscous edible oils, syrups, and emulsions (subject to hygienic material/configuration)

Why choose this design for industrial use

Twin-screw pumps excel where steady volumetric flow, gentle handling of viscous or multiphase fluids, and reliable continuous operation are required. They are commonly used in marine fuel systems, refinery transfer services and petrochemical plants where reduced pulsation, robust handling of heavy oils and long operational intervals are priorities.

For quotation and selection, provide required flow, discharge pressure, fluid properties (viscosity, temperature, presence of gas/abrasives), and any material or certification requirements so the correct rotor size, materials and seal arrangement can be specified.