Pumps - Piston pump
Piston pumps are positive displacement pumps that deliver and compress liquids or gases at high pressure. They are particularly suitable for applications with viscous or particle-laden media.
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Pumps - Piston pump
Piston pumps are positive displacement pumps that deliver and compress liquids or gases at high pressure. They are particularly suitable for applications with viscous or particle-laden media.
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Guide and selection support
Piston pumps are used in laboratories and technical processes where constant and high pressures are required. They reliably convey various media, even under demanding conditions. Selection is based on pressure requirements, medium properties, and delivery volume. For process control, pressure and flow measuring devices are often relevant in addition to the pump itself. LabFinder helps you navigate the wide range of piston pumps and supports targeted product selection for laboratory and process applications.
Applications and Benefits
Piston pumps, also known as reciprocating piston pumps, are positive displacement pumps in which a piston moves via a reciprocating mechanism to convey liquids or gases. They are used where high and constant pressure is needed, such as in laboratory analytics, process automation, chemical, or environmental technology. These pumps excel in their ability to move viscous or particle-containing media as well as compress gases, all while maintaining flow even with increasing pressure.
Selection Criteria
Key factors when selecting a piston pump include the required operating pressure, the type of medium to be conveyed (e.g., liquid, gas, viscous, particle-containing), and the desired flow rate. Compatibility with laboratory processes and installation conditions are also important. Depending on the application, aspects such as dosing accuracy, delivery cycle, and maintenance requirements should be considered.
Variants and Measuring Principles
Piston pumps differ, among other things, in their piston mechanism, such as reciprocating piston pumps with piston cups or as plunger pumps. They are available in various designs to meet the requirements of pressure, medium, and medium properties. Pressure and flow measuring devices are often used additionally to monitor and control pump operation.
Calibration and Maintenance
Regular maintenance ensures functionality and extends the service life of the piston pump. The focus here is on inspecting high-pressure seals and checking the reciprocating piston mechanism. Calibration may be necessary for precise dosing applications to accurately control the delivery amount.
Limitations of Application
Piston pumps are suitable for a wide range of media; however, highly abrasive or extremely corrosive substances may require special materials and more frequent maintenance. Applications with strongly pulsating pressure may also require additional pressure dampening or control technology.
Search Terms and Related Terms
Synonyms and related terms include reciprocating piston pump, piston pump, laboratory piston pump, reciprocating pump, dosing piston pump, plunger pump, high-pressure piston pump, laboratory displacement pump, solid-handling piston pump, viscous liquid pump, and piston diaphragm pump.
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Frequently asked questions
How does a piston pump work?
A piston pump conveys media by means of a piston that creates pressure differences inside the pump chamber via a reciprocating mechanism, drawing in the medium on the downstroke and expelling it on the upstroke.
What types of piston pumps are used in laboratories?
Frequently used variants include reciprocating piston pumps with piston cups, plunger pumps, and dosing piston pumps, each offering different mechanisms and delivery characteristics.
What should be considered when selecting a piston pump?
Important criteria are the required pressure level, the properties of the medium (e.g., viscosity, particulate content), the desired delivery rate, and compatibility with the laboratory process.
What maintenance does a piston pump require?
Regular inspection and replacement of high-pressure seals as well as checking the reciprocating piston mechanism are essential for reliable operation.
When does a piston pump reach the limits of its application?
Highly abrasive or strongly corrosive media can increase wear. Strongly pulsating pressure also may require additional measures for pressure stabilization.
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