Features of GX series

Both High Viscosity and Low Viscosity Liquids Can Be Handled

When a low-viscosity liquid is handled by a conventional gear pump, “galling” and “seizing” tend to occur. SiC ceramic gears do not have these problems even when the pump functions at a high speed. Silicon nitride ceramic gears show stable performance in handling high viscous liquids, due to their strength and toughness.

Ability to Handle Fine Slurries

Now that gears and other sliding components including bearings are made of ceramic, the handling of hard and soft fine slurries will not impair the longevity of these pumps.

Improved Performance Characteristics

Performance has been noticeably improved. Ceramic gears make it possible to reduce spaces between parts, therefore outperforming conventional metal gear models.

Quiet Liquid Transfer With Less Pulsation

Without the pulsation that is common to reciprocating pump and gear pumps for general uses, liquid is transferred quietly and smoothly, not agitating or generating foam/bubbles.

High Self-Priming Ability

Because the suction port is at the top of the pump, the pump chamber remains full when pump stops working. The self-priming capacity is enhanced at re-start.

Constant Flow Injection

Regardless of the temperature change, viscous liquid can be handled at accurate flow rate, which cannot do with other pumps. As the output is linearly related to rpm, the flow rate is easily controlled by changing speed.

Operating principle

A pinion (drive gear) coupled with a shaft supported by two bearings meshes with an internal gear (driven gear) whose periphery is supported by a strong bearing. Liquid is transfered by a change in the capacity of this meshed portion. In the suction process, the gears are disengaged and a space defined by the two gears and the casing expands. The liquid is drawn into the space by the negative pressure generated. In the discharge process, their teeth begin to mesh and space defined by the two gears and the casing is reduced to force out the liquid.

Left or right discharge port selection

Examples of applications

  • Non pulsatile quantitative injection of glue liquor in copper foil manufacturing process
  • Quantitative transfer of magnetic slurry liquid
  • Quantitative transfer of paint and dye slurry liquid
  • Quantitative injection of coagulant
  • Quantitative injection of paper strength enhancer
  • Non pulsatile quantitative transfer of fine slurry of electronic materials
  • Ammonia water/urea water spray in flue gas denitration equipment such as cleaning factory
  • Transfer of perfume such as detergent
  • Transfer of cleaning solvent for metal parts, electronic parts etc.
  • Solvent-based adhesive transfer
  • Chemical liquid transfer for various processes (caustic soda, 98% sulfuric acid, nitric acid etc.)

Specifications (50/60Hz)

Max. discharge capacity 35.2 / 42.5 L/min
Max. discharge pressure*1 1.0 MPa
Max. speed 1800 min-1
Main materials SUS316, SiC, Si3N4
Motor output range 0.2 – 3.7 kW
Liquid temperature range 0 – 150℃
Viscous liquid*2 0.5 – 10000 mPa·s
Slurry liquid Please cntact us for details.
Sealing method Gland packing or mechanical seal

*1 These are maximum values, which vary depending on motor speed and liquid viscosity.
*2 Motor speed and motor output suited to the viscosity of your liquid should be selected.

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