Pump Components and Types

Flashcards covering terminology and mechanical components of centrifugal, reciprocating, gear, screw, and vane pumps based on lecture diagrams.

Impeller

A rotating component in a centrifugal pump that transfers energy to the fluid.

Impeller Eye

The central opening of the impeller where fluid enters the suction side of a centrifugal pump.

Volute

The spiral-shaped casing surrounding the impeller that collects the fluid and directs it to the discharge.

Air Vessel

A component in a reciprocating pump system positioned above the suction and discharge valves.

Suction VIV (Valve)

The valve that remains open during the suction phase and closed during the discharge phase of a reciprocating pump.

Discharge VIV (Valve)

The valve that opens to allow liquid discharge and closes during the suction phase of a reciprocating pump.

Stuffing Box

A sealing assembly used in centrifugal pumps to prevent leakage along the rotating shaft.

Regulating Pressure Gage

An instrument used to monitor and adjust the pressure within a centrifugal pump system.

Pressure Switch

A device used to control pump operations based on the pressure within the system.

Grout Seal

A sealing material used in well casing installations to prevent contamination or leakage.

Venturi

A narrowed section of a pipe in a jet pump system used to create a pressure drop and induce fluid flow.

Ejector

A component in a jet pump system that uses a fluid nozzle to create suction for drawing up water.

Foot Valve

A check valve located at the bottom of the suction pipe in a well casing to maintain the pump's prime.

Side Loading

A force experienced in gear pumps where pressure differentials act on the gears.

External Gear Pump Fluid Transfer

Process where fluid is carried between the gear teeth and the pump case to move from the low pressure inlet to the high pressure outlet.

Drive Screw

The main rotating component in a screw pump, characterized by flat threads.

Flat Threads

The specific thread design found on the drive screw of a screw pump.

Cam Ring

The outer ring in a vane pump that controls the extension and retraction of the vanes as the cylinder block rotates.

Vanes

Components in a vane pump that slide in and out of the cylinder block slots to transport fluid from the inlet to the outlet.

Cylinder Block

The central rotating unit in a vane pump that houses the vanes and rotates around the axis of rotation.