Flowserve Gear Pumps
Flowserve GR series

PSI Prolew offers the Flowserve GR series, double-helical, herringbone type gear pumps.  These 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.

Brands:  Worthington

●Applications:  Marine, High Viscosity Polymers, Greases and Fats, Food Processing, Syrups, OEM, Petrochemical Processing, Process, Power Generation, Pulp and Paper, Utility

●Industries:  OEM, Pharmaceuticals, Auxiliary, Food Processing, Miscellaneous Services

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

●High Speed Pump Capability eliminates need for expensive speed reduction accessories and allows the use of off-the-shelf motors.

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

●Inherently Hydraulically Balanced Design eliminates end thrust and the need for thrust bearings.

●Convertible Stuffing Box allows for ample packing or mechanical seals to be used for greater flexibility.

FEATURES

• 1.5 in to 8 in ports standard; larger sizes available
• High-capacity, double row roller bearing
• Self-priming
• Run dry capability
• Low NPSHR
• Back pull-out design

GR configurations:

• GR - Standard gear width
• GRW - Wider gears for higher capacities
• GRH - Narrower gears for higher pressures

Options:

• M - Mechanical seal
• MI - Direct V-belt drive (mechanical seal and inboard bearing)
• L - Extra deep jacketed stuffing box
• J - Jacketed body
• Babbitted carbon sleeve bushing
• INSUROCK wearplates
• Available integral safety relief valve

Operating parameters:

• Flows to 275 m3/h (1200 gpm)
• Pressures to 35 bar (500 psi)
• Temperatures to 350°C (650°F)
• Speeds to 1800 rpm
• Viscosities to 100 000 ssu