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, which are not bi-rotational as standard but can be made so as an option, and some Viking 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.

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