Viking Heavy Duty Internal Gear Pumps
Viking Heavy Duty Internal Gear Pumps — 4324A, 1324A, 323A, and 327A series — are engineered for the most demanding large-volume industrial applications. Delivering flow rates from 500 to 1,600 GPM at pressures up to 200 PSI, these pumps handle viscosities up to 440,000 cSt and temperatures from -60°F to +450°F. Available in cast iron, steel, and stainless steel with jacketed models for asphalt, bitumen, and heavy oils. Multiple seal options ensure the right configuration for every heavy-duty application.
Manufactured by Viking Pump Inc. (IDEX Corporation), Cedar Falls, Iowa, USA, the heavy duty series represents the top end of Viking's internal gear pump range. These pumps are purpose-built for large-scale industrial operations where high flow rates, extreme viscosities, and challenging temperatures are the norm. Jacketed models allow steam or hot oil to circulate around the pump casing, maintaining fluid temperature for materials like asphalt and bitumen that solidify at ambient temperatures. The robust construction and multiple seal options ensure reliable, long-service-life performance in the harshest operating environments, from asphalt plants to heavy chemical processing facilities.
Heavy Duty Series Range
| Series | Material | Seal Type | Flow Range | Jacket |
|---|---|---|---|---|
| 4324A | Cast Iron | Mechanical Seal | 500–1,300 GPM | Yes |
| 1324A | Cast Iron | O-Pro Barrier | 500–1,300 GPM | No |
| 323A | Cast Iron / Steel | Packing / Mechanical | 500–1,300 GPM | No |
| 327A | Stainless Steel | Mechanical Seal | 500–1,600 GPM | No |
| 4327A | Stainless Steel | Mechanical Seal | 320–1,600 GPM | Yes |
Download Heavy Duty Internal Gear Pumps Brochure
Detailed technical specifications, performance curves & selection guide
General Specifications
Key Features & Advantages
Applications
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