Self-Priming Pump Our History

World’s fastest suction!

GV/GVF minimizes operation losses and maximizes pumping performances by the actions of the internal mechanism, which works for easy vapor-liquid separation, and the swirl chamber, which has separating board (perforated plates) and self-priming circulation holes for less air suction. Furthermore, even though the size is compact, GV/GVF delivers the world’s fastest self-priming performances in pumping up liquid at 5-meter height difference in no more than 2 minutes. This is the outcome of our unique valveless technology.

Prevents dry running, resistant to dry running!

1. Internationally patented valveless mechanism

With our unique valveless mechanism (internationally patented), a sufficient amount of water for a rerun remains inside GV/GVF even without a check valve. This prevents the pump from running dry.

2. Bearing mechanism for heat radiation and insulation

In most cases when pumps run dry, the friction on sliding surfaces causes parts, such as shafts and gearings, to break down from excessive heat. GV/GVF uses heat insulating materials on sliding surfaces and the radiation mechanism for effective temperature reduction. This original heat-resistant mechanism of GV/GVF enables the pump to prevent heat deformation.

3. Airlock-free mechanism

When air enters the chamber during operation, it often causes some air to be trapped inside. This series has the structure to easily direct and release the air by utilizing the special shape of inside of the back case (rear casing) and impeller.

The most space-saving pump in the class!

The smallest and lightest compact body in the class is now developed. Even though the sizes are compact, pumps of 1.5kw and above in particular uses rare-earth magnets with strong magnetic force to perform high-power operation. (This series can also be used for high specific gravity liquid.)

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With our unique valveless mechanism (internationally patented), a sufficient amount of water for a rerun remains inside GV/GVF even without a check valve. This prevents the pump from running dry.

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In most cases when pumps run dry, the friction on sliding surfaces causes parts, such as shafts and bearings, to break down from excessive heat. GV “SUPERMAG” series uses heat insulating materials on sliding surfaces and the radiation mechanism for effective temperature reduction. This original heat-resistant mechanism of GV/GVF enables the pump to prevent heat deformation.

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When air enters the chamber during operation, it often causes some air to be trapped inside. This series has the special airlock-free mechanism to easily direct and release the air by utilizing the air removal system of inside of the back case (rear casing) and impeller.

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The world’s first valveless pump, made in 1974, originates from the unique idea that defies the conventional pump designs by removing check valves, the major cause of breakdown of pumps.

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Our Technology

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Magnetic type of Submersible Pump Self-priming Pump our history  Vertical Pump Vs. Self-priming Pump
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