Glossary
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10 Glossary
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4-piston diaphragm pump
Pump with a diaphragm containing 4 enclosed volumes which deliver one after another in a revolution to
reduce the pulsation.
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CIP
The term Cleaning in Place (CIP) describes a process for cleaning process plants.
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Dosing pump
Displacement pumps deliver defined volumes per revolution independently of the pressure conditions at
the input and output of the dosing pump.
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Depyrogenisation
Removal of pyrogens from a solution
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Pump chamber
Parts of the pump that come into contact with the fluid.
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Enclosed volume
Space created by movement of the diaphragm which serves to displace the fluid.
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Diaphragm
Force-transmitting seal to deliver liquid media
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Diaphragm support
Component mounted on the back of the diaphragm and connecting the clamping ring to the diaphragm.
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Residual volume
Medium volume that can remain in the pump after running empty.
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Recirculation pump
Pump for delivering and circulating certain media
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Single-/Multiple-Use
Single-Use, single use of the pump chamber.
Multiple-Use, multiple use of the pump chamber.
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SIP
Sterilisation in Place (SIP) Describes a cleaning process in process plants, especially in pharmaceutical
product plants and biological plants. This sterilises all product-wetted areas of the plant without
significant disassembly.
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Suction lift dry
Suction lift of the pump when the pump chamber is not filled.
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Displacement pump
Displacement pump is the generic term for all pumps that work according to the displacement principle. It
is also referred to as volumetric pump and delivers the flid in a self-enclosed volume.
