Cast iron GEAR PUMPS Koshin suitable for Water, Oil, Various Liquids. Heavy Duty chemical pump can be used for hot temperature liquids up to 150 grad C.  Kerosene, Light/ Machine/Heavy oil A-crude & B-crude, Urine fluids, Fertilizer, Water drainage, Laver collection, Boiling oil, Millet jelly, Water. Made in Japan.

"GEAR PUMPS" Suitable for Water, Oil & Various Liquids Applications.

One of the first oil pump in the ORIENTAL KOSHIN Japan Ltd. pumps range produced more than 70 years. This HEAVY DUTY Koshin product has simple gear mechanism in combination with lightweight, compact design and super reliability in aggressive, sticky and thick liquids. You can use your own mechanical belt drive from combustion engine or an electric motor with 200-600 rpm. The body of KOSHIN pump GC-series is made from cast-iron and can be used for hot temperature liquids up to 150 grad C.



• Kerosene

• Light oil

• Machine oil

• Heavy oil

• A-crude

• B-crude

• Urine fluids

• Fertilizer

• Water drainage

• Laver collection

• Boiling oil

• Millet jelly

• Water


Additional information on the use of KOSHIN GEAR PUMP Model: GC-25-BAA:


1. During transfer the pressure loss approximately 1 m head for 5 m pipe length;


2. For liquids with high viscosity (more than 1000 centistokes) should be used a minimal length of suction pipes.


3. On the low revolution use (less than 400 RPM) the suction pipe should be 2-3 times wider than pumps inlet.

Gear Pump GC-25

  • Model GC-25
    Gear Material Cast Iron
    Connection Diameter 25 mm (1")
    Delivery Volume (400 rpm) 55 L/min(14 USG/min)
    Delivery Pressure 0 - 0.3 MPa (0 - 3 kg/cm2)
    Max. Suction Lift Max. 4 m (13.1 ft)
    Power 750 W
    Pulley 8" (200mm) × A1
    Net Weight 11 kg (24.3 lbs) (1 unit)

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