Hydrex Double Helical, Rotary Gear Pump

The Flowserve Hydrex herringbone gear, rotary pump is a simplified but extremely reliable design for a wide variety of pumping applications. The high pressure angle and long involute profile of the precision made herringbone gear rotors eliminate root trapping, ensure smooth power transmission, and deliver quiet, efficient operation.

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  • Brands:
    IDP, Worthington
  • Applications:
    Chemical Processing, General Purpose, Greases and Fats, High Viscosity Polymers, Marine, Pulp and Paper, Petroleum Production and Refining, Syrups, Utility

Double Helical Herringbone Gears provide quiet, pulse-free flow with better load carrying ability, greater strength and minimum hydraulic shock.

Between Bearing Design virtually eliminates shaft deflection, even while accommodating heavy, highly viscous loads.

Heavy-Duty Caged Roller Bearings result in long life. Hydrex pumps use the heaviest duty commercially available bearings.

Features:

  • Direct coupled
  • Single mechanical seal
  • Choice of materials
    • Cast iron
    • Steel
    • Bronze
    • Stainless steel
  • Optional vertical submerged tank design
  • Operating parameters
    • Flows to 110 m3/h (500 gpm)
    • Pressures to 24 bar (350 psi)
    • Temperatures from -50°C (-60°F) to 200°C (400°F)
    • Viscosities from 32 to 500 000 ssu

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GA Series Cast Iron, Double Helical, Rotary Gear Pumps

Description: The Flowserve GA cast iron series, double helical, herringbone type gear pumps are designed to handle viscous fluids at low to medium flows and pressures. These rugged pumps provide highly efficient, pulse-free pumping even under the most challenging conditions.

GR Double Helical, Rotary Gear Pump

Description: The Flowserve GR series, double-helical, herringbone type gear pumps have long been a workhorse of the general industry. Designed to handle viscous fluids, these rugged pumps provide high efficiency, pulse-free pumping over a wide spectrum of applications.

Gearex Double Helical, Timed Rotary Gear Pump

Description: The Flowserve Gearex double-helical, rotary gear pump is extremely rugged and unusually compact for its high capacity and range. Timing-gear-driven herringbone rotors are precision machined for vibrationless, pulseless discharge of viscous fluids.

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