Positive Displacement Pumps
Positive displacement pumps move fluid by trapping a fixed amount of it and then forcing (displacing) that trapped volume into the discharge pipe. They provide a consistent flow regardless of the pressure.
Components of Positive Displacement Pumps
- Pump Chamber: The chamber where the fluid is trapped before being displaced.
- Rotors, Pistons, or Diaphragms: Components that move to displace the fluid, varying by pump type.
- Inlet and Outlet Valves: Control the fluid’s entry and exit, typically one-way valves.
- Seals and Gaskets: Prevent leakage of fluid from the pump.
- Drive Mechanism: Provides the necessary force to operate the pump, usually an electric motor.
- Timing Gears: Synchronize the movement of internal components in some types, such as gear pumps.
- Bearings: Support rotating components and reduce friction.
Types of Positive Displacement Pumps
- Gear Pumps: Use meshing gears to pump fluid, common in hydraulic systems.
- Diaphragm Pumps: Utilize a flexible diaphragm to move fluids, ideal for chemicals and abrasives.
- Piston Pumps: Employ a piston mechanism for high-pressure applications.
- Peristaltic Pumps: Use a rotor to squeeze a flexible tube, suitable for medical and chemical applications.
Applications of Positive Displacement Pumps
- Oil and gas
- Chemical and petrochemical
- Food and beverage processing
- Pharmaceutical
Advantages of Positive Displacement Pumps
- Handles viscous liquids and slurries
- Self-priming
- Can handle solids
Technical Specification
- Model: PDP-300
- Brand/Manufacturer: Casalini Turbo Tech
- Application: Chemical Processing, Oil & Gas, Food & Beverage
- Pump Type: Positive Displacement Pump (Rotary, Gear, Diaphragm, or Screw type)
- Standard Compliance: API 676, ISO 13710