Gear pumps (GP series)

The GP series is our line of user friendly and reliable gear pumps placed directly into the tank.

Product Overview

The GP series is our gear pumps, and has been used with harvesting equipment for years. They are reliable and is powerful enough for most uses. Unique product developed by Serigstad since 2000.

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Easy installation

The gear pump is easily placed directly into the tank and fastened in the existing thread. Vent holes in the construction prevent the tank from collapsing.

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The gear pumps are reversible for emptying the hoses of acid back into the tank.

Technical Info

Technical specifications for our GP pumps.

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GP5 is a gear pump capable of delivering up to 5 liters per minute. GP5 is available for 200 or 25 liter tank.


Voltage12 V
Max Current5 A
Min Flow0,3 l/min
Max Flow5 l/min
Max Flow with stainless spray boom and 10 m hose3 l/min
Max Pressure1 bar

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GP8 is a more powerful gear pump with capacity of up to 8 liters per minute. GP8 is available for 200 liters tank.


Voltage12 V
Max Current8 A
Min Flow0,3 l/min
Max Flow8 l/min
Max Flow with stainless spray boom and 10 m hose5,3 l/min
Max Pressure1 bar

User manual

Download user manual for the GP series in PDF format.


Last ned brosjyre for GP-serien i PDF-format.


Have a look at available accessories for the GP series.

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Choosing the right nozzles is essential for achieving desired spray and capacity. Have a look in our nozzle chart to find the correct nozzles.

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Spray nozzles

Standard spray solution with two nozzles mounted on flexible hoses, for easy and custumizable setup.

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Spray boom

The spray boom is available in lengths of 60 or 120 cm, with respectively 2 or 5 nozzles. We also deliver a sprinkler boom with holes instead of nozzles in lengths of 50 or 100 cm.

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Pickup switch

Mechanical switch that control the pump when the pickup is lowered or raised.

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Maintain your pump regularly to ensure optimal function.

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  • Check pump, pumping chamber and filter regularly
  • Check electrical connections for corrosion and wear
  • Check hoses and gaskets for leaks and wear
  • Flush pump with water before storage
  • Store in a dry and frost-free environment