A collection of technical terms from everyday practice, explained in an understandable way.
Jung Process Systems Pump Wiki
Pump Wiki
We leave no question unanswered. In our pump wiki, you will find useful information about pumps and their technologies and applications, the correct selection and functioning of pumps, and everything you need to know about different boundary conditions.
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3-A certificate The 3-A certificate is issued by the American corporation 3-A Sanitary Standards, Inc. (3-A SSI). It… 3-in-1 solution 3-in-1 describes a technology in which infeed, conveying, and cleaning are carried out in a single…A
Abrasive media Abrasive media are substances with a grinding, abrasive effect, such as crystals or fruit kernels.… ATEX This abbreviation of the French term ATmosphères EXplosibles refers to a directive on explosion… Axial pumping With axial pumping, the medium is pushed through the pump in the longitudinal direction. In a …B
Bearing A bearing is a component for guiding components that move against each other. In pumps, the bearing… Bypass A bypass is an additional auxiliary line around the pump. In most cases, this line is used to return…C
Cartridge design Closed design of a mechanical seal; all elements are integrated in a single component. A cartridge… Cast components With cast components, the shape of the component is achieved largely by casting the material from… Cavitation The term cavitation refers to the formation and subsequent sudden disintegration of vapour bubbles.… Cavity Cavities are hollow spaces that can occur when metals are cast. The machining of components… CHEMSPIN CHEMSPIN is the brand name for industrial twin-screw pumps made by northern German manufacturer Jung… CIP cleaning CIP = clean-in-place – cleaning of the system without disassembly and manual cleaning of components.… Circumferantial piston pump Circumferantial piston pumps make up part of the group of positive displacement pumps. They… Contact free Contact-free means that adjacent components do not come into contact with each other. In HYGHSPIN… Contamination Contamination refers to the contamination of a product, for example with microorganisms or residues… Corrosion Corrosion refers to the decomposition of a material as a result of external influences. To prevent… Coupling Couplings are used to connect rotating shafts, for example to transmit power at the interface…D
Delivery head Delivery head is a term used primarily for centrifugal pumps. The head indicates how far a… Design free of dead spaces Design free of dead spaces are free of spaces where dirt can accumulate, as this would lead to … Diffusion hardening In diffusion hardening, additional elements are introduced (“diffused”) into the stainless steel… Displacement Displacement is the theoretical volume flow rate of a positive displacement pump without taking gap… Double Flow Double Flow refers to the product family of double-flow HYGHSPIN twin-screw pumps for special… Double spindle Our double spindles are at the heart of our HYGHSPIN twin-screw pumps. Thanks to the two stainless… Double-flow Double-flow twin-screw pumps have two parallel stages leading to a central outlet connection. They… Dry-run protection Dry-run protection for pumps is in place when the pump can be operated without a pumped medium (e.g.…E
Efficiency The efficiency of a pump indicates the ratio between the pump capacity and the mechanical power… EHEDG EHEDG is the abbreviation for the European Hygienic Engineering & Design Group. Like the American… Elastomers Elastomers are dimensionally stable, elastic plastics that are used for example for seals. The… Extruder function Extrusion is a moulding process in which a viscous medium is pressed through an opening under…F
FDA approval “FDA stands for the Food and Drug Administration, the US regulatory and supervisory authority for… Feed hopper A funnel-shaped opening for feeding non-flowable products in the HYGHSPIN HOPPER. This allows… Feed screw Feed screws are the spindles in a twin-screw pump. In HYGHSPIN twin-screw pumps, the spindles are… Flank clearance Flank clearance is the distance between the respective “teeth” of the two feed screws running… Flow speed The flow speed refers to the speed at which a medium is transported through the pump. At low flow… Flowability The viscosity of a medium, see Viscosity.G
Gap Gaps are narrow spaces between two components. In the design of pumps for hygienic applications,… Gap loss Gap loss is the loss of performance that occurs when some of a medium that has already been pumped…H
Hastelloy Hastelloy® is the brand name of a particularly resistant stainless steel material. Hastelloy® is… High-pressure application In the area of hygienic food pumps, pressures from approx. 16 bar are considered high-pressure… HNBR HNBR = hydrogenated acrylonitrile butadiene rubber, designation for certain elastomers. HYGHSPIN HYGHSPIN is the brand name for hygienic twin-screw pumps made by northern German manufacturer Jung… HYGHSPIN Hopper HYGHSPIN Hopper is the brand name for a twin-screw pump with feed screws extended towards the inlet.… Hygienic Design Hygienic design is the design of easy-to-clean parts, components and production systems for the…I
Infeed Infeed means how the medium enters the pump, for example through a pipe or from a hopper. Inlet connection Connection opening on the suction side. Inlet head The inlet head is the difference in height between the source of the pumped medium and the inlet… Inline version Inline means that the pump is integrated into the production line by means of opposing connections…M
Maintenance Maintenance is the care, maintenance and servicing of systems, machines and components. The effort… Mass inertia Mass inertia, also known as mass moment of inertia, indicates the resistance of a component to the… Mechanical seal Mechanical seals are used in a pump to seal the rotating shaft from the pump chamber. A pair of… Medium Medium is a collective term for the material conveyed by the pump. Media differ in particular with… Microjet Microjets are high-energy streams produced by the sudden disintegration of vapour bubbles as a… Modular design HYGHSPIN twin-screw pumps are generally offered in a robust, compact modular design. The pump and… Moment of inertia The moment of inertia indicates the resistance of a body to rotational movement around its own axis.… Motor shaft The motor shaft is an elongated component that transmits the force generated by the motor – the… MTBF MTBF is a static value and stands for mean time between failures. It provides information about the… MTTR MTTR is a static value and stands for mean time to repair. It provides information about how long on… Multiphase pumping Multiphase pumping is the conveying of a mixture made up of at least two of the three phases (solid,…O
Operating range The operating range of a pump provides information about the pumpable volume flows, pressures (>… Operational reliability Operational reliability describes the risk of failures. One of the factors contributing to the… Outlet connection Component at which the medium leaves the pump.P
Pa s Pa·s, or sometimes Pas, is the abbreviation for Pascal second, a unit of measurement for dynamic … PC pump PC pumps make up part of the group of positive displacement pumps. They essentially consist of a… Pitting Pitting is a form of material breakdown on components and is typically a consequence of cavitation.… Positive displacement pump Positive displacement pumps work according to the what is known as the volumetric principle: a… Positive locking Positive locking refers to a joining technique in which the joined parts cannot move against each… Pressure difference For pumps, the pressure difference indicates the difference between the inlet and outlet pressure,… Pressure pulse A pressure pulse is a sudden abrupt increase in pressure within a system that can cause damage to… Pressure side The pressure side is the point on the pump where the medium coming from the suction side exits into… Pulsation Pulsations are regular pressure fluctuations within a system. They are often generated by positive… Pump chamber The pump chamber in a pump is where the actual pumping process takes place. A distinction is often… Pump curve A pump curve is a graphic representation of the ratio of delivery head to pumping volume. The curve… Pump orientation Pump orientation is the orientation of the pump towards the system and towards the motor via the… Pumping characteristic Pumping characteristic refers to how a pump behaves during operation, for example whether the pump… Pumping temperature The pumping temperature refers to the temperature of the medium to be pumped. As the pumping… Pumping volume The pumping volume indicates how much of a particular medium can or should be transported by the…R
Ra Ra is the abbreviation for roughness average, a measurement of the quality of a surface. The Ra… Rotary lobe pump Rotary lobe pumps make up part of the group of positive displacement pumps. They essentially consist… Rotating conveyance In rotating conveyance, the pumped medium rotates with the rotors or impellers in the pump. This…S
Self-emptying Self-emptying is a design feature of pumps and typical for applications with high hygiene… Self-priming A pump is said to be self-priming if it is capable of automatically raising the pumped medium up to… Semi-cartridge design A term used to describe the design of a mechanical seal. Unlike the cartridge design, only the… Service life In connection with parts and components, the term service life denotes the time during which an… Shaft coupling See coupling. Shaft end So-called torque – the force – is transmitted to another component from the shaft end. A coupling is… Shaft seal The shaft seal is the seal on a rotating shaft at the passage through a static housing component.… SIP cleaning SIP = sterilise-in-place – sterilisation of components within a system using superheated steam or… Solid size The solid size indicates how large a single particle of the medium is. It is an important criterion… Speed range The speed range of a pump indicates how many revolutions the spindles or rotors perform within a… Stainless steel Stainless steel is the term used to describe steels that are highly resistant to corrosion.… Suction capacity Suction capacity is the ability of a pump to pump products upward on the inlet side of the pump. If… Suction chamber The suction chamber is the inlet area of a pump. This is followed by the pump chamber, where the… Suction side The suction side is the side of a pump from which the medium enters the pump. System layout The system layout describes the design and function of a system. Jung Process Systems has its own…T
Turbulence The term turbulence refers to local, in most cases chaotic flow conditions, for example vortices.… Twin-screw pump Twin-screw pumps make up part of the group of positive displacement pumps. Originally, these pumps…V
V2A See stainless steel. V4A See stainless steel. Vapour bubbles Vapour bubbles form when the local static pressure falls below the evaporation pressure of the … Vapour pressure The term vapour pressure refers to the absolute pressure at which the pumped medium begins to boil… Vapour pressure curve A vapour pressure curve refers to a specific pumped medium. It shows the progress of the vapour… Viscosity Viscosity describes the flowability of a medium, or more precisely the resistance of a medium to… Volume flow rate The volume flow rate the volume of a medium that is conveyed in a specific time through a specific… Volumetric efficiency The volumetric efficiency of a positive displacement pump describes the ratio between the…
