Industrial Pumps for Oil and Gas Production
- Apex
- Armstrong
- ARO Pump
- Barnes
- Berkeley
- Brant Luebbe
- Burks
- Crane
- Crusair David-Brown
- Dover
- Finder
- Fisher
- Flowserve
- Gardner Denver
- GEA
- GEC
- Gorman-Rupp Goulds
- Grundfos
- Hasker
- IDEX
- Ingersoll-Dresser
- IR
- KYD
- Lufkin
- Milton Roy National
- Neptune
- Parker Hannifin
- Patterson
- Pentair
- Pironi Pompe
- Pioneer
- Pompes AB
- Precision
- Prosser
- Roper
- Roth
- Sauer-Danfoss
- Sulzer
- Texsteam
- Wartsila
- Weir
- Wildons Union
A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps.
Pumps operate by some mechanism (typically reciprocating or rotary), and consume energy to perform mechanical work by moving the fluid. Pumps operate via many energy sources, including manual operation, electricity, an engine of some type, or wind power.
Various Positive Displacement Pumps
The positive displacement principle applies in these pumps:
- Rotary lobe pump
- Progressive cavity pump
- Rotary gear pump
- Piston pump
- Diaphragm pump
- Screw pump
- Gear pump
- Hydraulic pump
- Vane pump
- Regenerative (peripheral) pump
- Peristaltic pump
- Rope pump
- Flexible impeller we

