Gear pumps rely on two meshing gears to cause liquid flow. They are precision machines with very tight fits and tolerances and are resistant to high pressure differentials. They come in two types: two externally toothed gears or one externally toothed gear, and the other with internal gears.
The most common use of gear pumps is to deliver higher viscosity chemical and petrochemical fluids. Supply fuel to burners or other facilities; and transfer gasoline, kerosene, fuel oil and diesel. They are also found in hydraulics such as actuators, damper controls and elevators. In addition, they pump coolants, paints, bleaches, solvents, syrups, glues, greases, asphalts, oils and lubricants, and can handle many general industrial applications.
Parker Gear Pump Description: Gear pumps, with proper design and manufacturing, offer many advantages. These advantages include compactness, simplicity, ease of maintenance, two-way and pulseless flow, self-priming, low net positive pressure head requirements, long mean maintenance intervals, high pressure and high temperature capability, accurate and accurate metering, and multi-seal availability. Configured or unsealed magnetic drive.
These pumps can withstand small suspended solids in abrasive applications, but they wear out and lose performance.
Gear pumps are available in a variety of construction materials including cast iron, cast steel, stainless steel, high nickel alloys and lightweight high-grade aluminum alloys. They are usually available in a variety of alternative designs such as tight coupling, wear resistance and compliance with API standards.
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