Viking Internal Gear Pumps
Viking Internal Gear Pumps are rotary positive displacement pumps that deliver consistent, pulse-free flow for a vast range of industrial fluids. With over 110 years of engineering heritage, Viking's internal gear technology handles flow rates from 1.5 to 1,600 GPM, pressures up to 200 PSI, viscosities from 1 to 440,000 cSt, and temperatures from -60°F to +450°F. Available in Cast Iron, Steel, and Stainless Steel with multiple seal options including O-Pro Barrier, mechanical seal, packing, and magnetic drive (sealless) configurations.
Manufactured by Viking Pump Inc. (IDEX Corporation), Cedar Falls, Iowa, USA, Viking internal gear pumps use a rotor/idler arrangement where liquid fills the spaces between gear teeth, is carried around the crescent-shaped separator, and is squeezed out as gears re-mesh. This action provides smooth, non-pulsating flow regardless of viscosity — from water-thin solvents to extremely thick adhesives, polymers, and asphalt. Jacketed models are available for applications requiring heated or cooled pumping. The extensive range covers industrial, energy, chemical, food, and pharmaceutical applications.
Product Series Range
| Series | Material | Seal Type | Flow Range | Jacket |
|---|---|---|---|---|
| 4124A | Cast Iron | Mechanical Seal | 8–500 GPM | No |
| 1124A | Cast Iron | O-Pro Barrier | 8–400 GPM | No |
| 4127C | Stainless Steel | Mechanical Seal | Up to 320 GPM | No |
| 1127C | Stainless Steel | O-Pro Barrier | Up to 320 GPM | No |
| 4224A/B/C | Cast Iron | Mechanical Seal | Up to 500 GPM | Yes |
| 1224A/C | Cast Iron | O-Pro Barrier | Up to 400 GPM | Yes |
| 4327A | Stainless Steel | Mechanical Seal | 320–1,600 GPM | Yes |
| 1324A | Cast Iron | O-Pro Barrier | 500–1,300 GPM | No |
| 8124A | Cast Iron | Magnetic Drive | Up to 500 GPM | No |
| 456 | Cast Iron | Mechanical Seal | 1.5–3 GPM | No |
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Detailed technical specifications, performance curves & selection guide
General Specifications
Key Features & Advantages
Applications
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