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| Viking is the World Leader in Manufacturing Positive Displacement Pumps and Pump Accessories |
| Products |
| Click on a product line below for more information. Viking Pump's extensive product catalog includes: |
| Features Common to All Viking Pumps |
| • Constant capacity regardless of pressure. Viking positive displacement pumps provides relatively constant output regardless of changes in pressure, making them well suited for metering applications. • Flow proportional to speed. The pump's output is directly proportional to its speed, allowing it to be used for metering applications using a variable speed drive following a process control signal. • Direction of flow is reversible. The same Viking pump may be used for loading and unloading of tanks when used with a driver capable of reversing direction. (Exceptions are Viking Spur Gear and Mag Drive models). Note that pressure relief must be provided in both directions of operation. • Smooth, near-laminar flow. Unlike reciprocating PD pumps (including diaphragm, piston, plunger and rotating piston principles), Viking rotary pumps offer smooth, non-pulsating flow which reduces friction loss and cavitation due to acceleration and deceleration losses, reduces water hammer, and aids in mixing two streams by eliminating slugs of fluid. • Self-priming, with suction lift capabilities. Viking pumps are capable of self priming when wetted, and are capable of pulling a suction lift where positive suction head is not available. |
| Viking Pumping Principle Comparison |
| Characteristics |
| Maximum Capacity (gpm / m3/hr) |
| 1,500 / 345 |
| 32 / 7.3 |
| 820 / 184 |
| Maximum Discharge Pressure (psi / bar) |
| 250 / 17 |
| 2500 / 172 |
| 400 / 27 |
| Maximum Viscosity (SSU / cSt) |
| 2,000,000 / 440,000 |
| 75,000 / 16,500 |
| 2,000,000 / 440,000 |
| Maximum Temperature |
| 700 / 370 (° F / ° C) |
| 450 / 230 |
| 400 / 205 |
| Run-dry capability |
| Yes, for a short time, if fluid film in pump |
| Yes, indefinitely, with seal flush |
| Solids Handling |
| Soft solids, small size |
| No |
| Soft solids, large size |
| Abrasives Handling |
| Yes, with hardened parts |
| No |
| No |
| Non-lubricating fluid capabilities |
| Good (with non-metallic idler) |
| Good (with non-metallic gears) |
| Excellent |
| Shear Rate |
| Low (run at slow speeds) |
| Medium |
| Low |
| Sanitary/Hygienic Models |
| No |
| No |
| Yes |
| No. of Shaft Seals |
| 1 |
| 1 |
| 2 |
| Sealless Mag Drive Models |
| Yes |
| Yes |
| No |
| Yes, for a short time, if fluid film in pump |
