When do we use a piston pump?

In a piston pump, the high-pressure seal moves back and forth with the piston. Because of their capability to deliver high pressure and control flow accurately, these pumps have found application across various industries. Here are some areas where you would typically find them:

1. Hydraulic Systems: Piston pumps are employed in hydraulic systems for converting mechanical energy into hydraulic energy. Hydraulic piston pumps can handle high flows under high pressures typical of hydraulic systems. They are used in construction equipment such as excavators, cranes and manufacturing hydraulic presses.
2. Oil Fields: Oil & gas industry uses piston pumps for oil extraction and transfer. They are utilized because they can withstand pumping at higher pressures required for down-hole operations like namely secondary recovery systems where water or other fluids are injected into an oil field to raise the pressure and facilitate production.
3. Industrial Processing: There is a need for precise dosing of chemicals in several industrial processes. For this reason, piston pumps offer this level of precision that makes them ideal for dosing/metering applications. They are used in chemical manufacturing, water treatment plants, food processing industries where specific quantities of ingredients or chemicals must be added to a process.
4. Water Desalination: In reverse osmosis systems for desalting water, high pressure piston pumps come into play. Through pressurizing saltwater against semi-permeable membranes it is possible to separate salts from water resulting in freshwater.
5. Painting and Coating Systems: The automobile as well as manufacturing sectors employ piston pumps in painting and coating processes. High-pressure spraying devices use them for pumping paint, varnishes, and other coatings uniformly.
6. Medical/Pharmaceutical Applications: For some infusion pumps that require accurate fluid administration such as those used in certain medical devices may also use the piston pump technology though not all do so today yet only sometimes is this necessary especially if it is one that requires precise introduction of fluids when these devices simply cannot make use of any other kind of pump design such as this. They enable precision dosing and filling of vials or syringes during pharmaceutical manufacturing.
7. Food & Beverage Industry: Piston pumps are used in the food and beverage industry to handle viscous products like pastes, purees, or compounds having solid particles. Therefore, while still giving the necessary pressure and flow, they are selected for maintaining product integrity.

The construction of piston pumps enables them to deliver consistent and controlled flow rates which are important in applications that require accuracy. In addition to this, their hardy nature makes them ideal for harsh environments where harsh fluids such as high viscosity or those with abrasive particles need to be handled. Consequently piston pumps offer a flexible solution to many high-pressure pumping applications.