Non positive displacement pump | Definition, types and examples

Non positive displacement pump is one where the fluid can be transferred by inertia of fluid,which is in motion. These pumps are make use of Newton’s first law.

Advantages

• Initial cost is low.
• Maintenance cost is also minimum.
• Less noise.
• Reliability is high.
• Simple Operation.

Types of Non positive displacement pump

1. Centrifugal pumps
2. Axial flow pump
3. Radial flow pump.

• Positive displacement Pumps
• FRL unit
• Hydraulic motor