Internal Gear Pumps
In internal gear pumps a small external gear rotates inside an internally toothed ring. The fluid is carried in the crescent-shaped space between the two gears, which makes the flow continuous and pulsation-free. The catalog covers the KIP and KIPK series.
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KIPK⅜“ Internal Gear Pump
- Maximum Flow Rate 0,175 m³/h
- Flow Rate 0.002 L/rev
- Pressure Range 2–14 bar
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KIP⅜“ Internal Gear Pump
- Maximum Flow Rate 0,35 m³/h
- Flow Rate 0.004 L/rev
- Pressure Range 2–14 bar
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KIPK½” Internal Gear Pump
- Maximum Flow Rate 0,9 m³/h
- Flow Rate 0.001 L/rev
- Pressure Range 2–14 bar
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KIP½” Internal Gear Pump
- Maximum Flow Rate 1,5 m³/h
- Flow Rate 0.017 L/rev
- Pressure Range 2–14 bar
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"KIP1" Internal Gear Pump
- Maximum Flow Rate 2 m³/h
- Flow Rate 0.033 L/rev
- Pressure Range 2–14 bar
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"KIP1"-Y Internal Gear Pump
- Maximum Flow Rate 2 m³/h
- Flow Rate 0.033 L/rev
- Pressure Range 2–14 bar
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KIPK 1½” Internal Gear Pump
- Maximum Flow Rate 4 m³/h
- Flow Rate 0.067 L/rev
- Pressure Range 2–14 bar
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KIPK 1½”-Y Internal Gear Pump
- Maximum Flow Rate 4 m³/h
- Flow Rate 0.067 L/rev
- Pressure Range 2–14 bar
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KIP 1½” Internal Gear Pump
- Maximum Flow Rate 3,5 m³/h
- Flow Rate 0.123 L/rev
- Pressure Range 2–14 bar
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"KIPK2" Internal Gear Pump
- Maximum Flow Rate 7,5 m³/h
- Flow Rate 0.263 L/rev
- Pressure Range 2–14 bar
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"KIPK2-Y" Internal Gear Pump
- Maximum Flow Rate 7,5 m³/h
- Flow Rate 0.263 L/rev
- Pressure Range 2–14 bar
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"KIP2" Internal Gear Pump
- Maximum Flow Rate 14 m³/h
- Flow Rate 0.491 L/rev
- Pressure Range 2–14 bar
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"KIP2"-Y Internal Gear Pump
- Maximum Flow Rate 14 m³/h
- Flow Rate 0.491 L/rev
- Pressure Range 2–14 bar
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"KIP2-3"-Y Internal Gear Pump
- Maximum Flow Rate 14 m³/h
- Flow Rate 0.491 L/rev
- Pressure Range 2–14 bar
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KIPK 2½” Internal Gear Pump
- Maximum Flow Rate 25 m³/h
- Flow Rate 0.877 L/rev
- Pressure Range 2–14 bar
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KIP 2½” Internal Gear Pump
- Maximum Flow Rate 35 m³/h
- Flow Rate 1,296 L/rev
- Pressure Range 2–14 bar
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"KIP3" Internal Gear Pump
- Maximum Flow Rate 60 m³/h
- Flow Rate 2,222 L/rev
- Pressure Range 2–14 bar
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"KIP4" Internal Gear Pump
- Maximum Flow Rate 95 m³/h
- Flow Rate 3,519 L/rev
- Pressure Range 2–14 bar
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"KIP6" Internal Gear Pump
- Maximum Flow Rate 135 m³/h
- Flow Rate 6.19 L/rev
- Pressure Range 2–14 bar
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About Internal Gear Pumps
What stands out in this design is quiet, vibration-free operation. With few tooth contact points, both noise and the shear applied to the fluid are low — making it the choice for shear-sensitive products and lines requiring fine metering. The small sizes go down to very low flows such as ⅜", covering laboratory and pilot-plant scale.
Models in our catalog offer connections from ⅜" to 6" and maximum flows from 0.175 m³/h to over 20 m³/h, with displacement starting at 0.001 L/rev. The pressure range is 2–14 bar, temperature 20–200 °C and viscosity 100–25,000 cP. Weights start at 3 kg.
Casings are GG25 cast iron or AISI 316 stainless; gear material is configured as GGG40 ductile iron, AISI 1040 steel or AISI 316. A heating jacket, strainer and by-pass can be added as accessories.