7.20 DesignType ObjectType Definition
The DesignType provides static Variables for design properties, describing the limitations and working conditions of a Pump and is formally defined in Table 47.
| Attribute | Value | |||||
| BrowseName | DesignType | |||||
| IsAbstract | False | |||||
| References | Node Class | BrowseName | DataType | TypeDefinition | Other | |
|---|---|---|---|---|---|---|
| Subtype of the 2:FunctionalGroupType defined in OPC 10000-100, i.e. inheriting the InstanceDeclarations of that Node. | ||||||
| 0:HasComponent | Variable | AdditionalFieldbuses | 0:String [128] | 0:DataItemType | O, RO | |
| 0:HasComponent | Variable | BalancingRateOfFlow | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | BasePressure | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | ClearanceVolume | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | ClockwiseRotation | 0:Boolean | 0:TwoStateDiscreteType | O, RO | |
| 0:HasComponent | Variable | Controllable | 0:Boolean | 0:TwoStateDiscreteType | O, RO | |
| 0:HasComponent | Variable | Cool_DownTimeForAVaporJetPumpOrADiffusionPump | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | Counter_ClockwiseRotation | 0:Boolean | 0:TwoStateDiscreteType | O, RO | |
| 0:HasComponent | Variable | CriticalSpeed | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | DeclarationOfConformity | 0:String | 0:DataItemType | O, RO | |
| 0:HasComponent | Variable | DeclarationOfConformityAvailable | 0:Boolean | 0:TwoStateDiscreteType | O, RO | |
| 0:HasComponent | Variable | DesignAxialLoad | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | DesignRadialLoad | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | DirectivesOfEUDeclarationOfConformity | DeclarationOfConformityOptionSet | 0:DataItemType | O, RO | |
| 0:HasComponent | Variable | DryCriticalSpeed | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | ExplosionProtection | ExplosionProtectionOptionSet | 0:DataItemType | O, RO | |
| 0:HasComponent | Variable | GeometricalFlow | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | GeometricDisplacementVolume | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | HeadAtPeakPoint | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Object | InstallationNpshCurve | 0:FileType | O | ||
| 0:HasComponent | Variable | LeakageRateOfFlow | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MaximumAllowableAmbientTemperature | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MaximumAllowableCasingWorkingPressure | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MaximumAllowableContinuousSpeed | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MaximumAllowableHead | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MaximumAllowableRelativeHumidity | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MaximumAllowableTemperature | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MaximumAllowableThroughput | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MaximumAllowableWorkingPressure | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MaximumAxialLoad | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MaximumPumpPowerInput | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MaximumRadialLoad | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MaximumStaticSealingPressure | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MeanTimebetweenFailures | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MinimumAllowableAmbientTemperature | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MinimumAllowableContinuousSpeed | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MinimumAllowableHead | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MinimumAllowableRelativeHumidity | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MinimumAllowableTemperature | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MinimumAllowableThermalFlow | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MinimumContinuousStableFlow | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | MinimumContinuousThermalFlow | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | NetPositiveSuctionHeadRequired | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | NetPositiveSuctionHeadRequiredForADropOf3Percent | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | OfferedControlModes | OfferedControlModesOptionSet | 0:DataItemType | O, RO | |
| 0:HasComponent | Variable | OfferedFieldbuses | OfferedFieldbusesOptionSet | 0:DataItemType | O, RO | |
| 0:HasComponent | Variable | OptimumHead | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | OptimumPumpPowerInput | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | OptimumRateOfFlow | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | PistonVelocity | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | PossibleFluids | 0:String [] | 0:DataItemType | O, RO | |
| 0:HasComponent | Variable | Pre_ChargePressure | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | PumpClass | PumpClassEnum | 0:DataItemType | O, RO | |
| 0:HasComponent | Object | PumpCurve | 0:FileType | O | ||
| 0:HasComponent | Object | PumpEfficiencyCurve | 0:FileType | O | ||
| 0:HasComponent | Object | PumpH_Q_Curve | 0:FileType | O | ||
| 0:HasComponent | Object | PumpNpshCurve | 0:FileType | O | ||
| 0:HasComponent | Object | PumpPowerInputCurve | 0:FileType | O | ||
| 0:HasComponent | Variable | Shut_OffHead | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | Shut_OffPumpPowerInput | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | SlipFlow | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | SoundEnergy | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | SoundEnergyLevel | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | SoundPower | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | SoundPowerLevel | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | SoundPressure | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | SoundPressureLevel | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | SpecificSpeed | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Object | StablePumpH_Q_Curve | 0:FileType | O | ||
| 0:HasComponent | Variable | StandardGasFlowrate | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | StartingPressure | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | Suction_SpecificSpeed | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | SweptVolume | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | TripSpeed | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | TypeNumber | 0:Double | 0:DataItemType | O, RO | |
| 0:HasComponent | Variable | VolumeFlowRate | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | VolumeFlowRateOfBackingPump | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | WarmUpTimeForAVaporJetPumpOrADiffusionPump | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | WaterVaporTolerableLoad | 0:Double | 0:BaseAnalogType | O, RO | |
| 0:HasComponent | Variable | WetCriticalSpeed | 0:Double | 0:BaseAnalogType | O, RO | |
The optional Variable AdditionalFieldbuses is a one dimensional array with a limit of 128 entries.
The optional Variable PossibleFluids is a one dimensional array without a limit for possible entries.
The InstanceDeclarations of the DesignType have additional Attributes defined in Table 48. The Variables and the associated Descriptions are based on the standards DIN EN ISO 17769-1, DIN EN ISO 17769-2, DIN ISO 21360-1, ISO 3529-2, DIN 28400-2, DIN EN ISO 80000-8, ISO/TR 25417 and DIN EN 13306.
| BrowsePath | Value Attribute | Description Attribute |
| AdditionalFieldbuses | Additional fieldbuses supported by the product. | |
| BalancingRateOfFlow | Rate of flow which is extracted to activate a balance device | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067091 DisplayName: m³/s Description: cubic metre per second | ||
| BasePressure | Pressure obtained in the test dome after conditioning the vacuum pump and the test dome | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5259596 DisplayName: Pa Description: pascal | ||
| ClearanceVolume | Volume remaining unswept at the end of the discharge stroke. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067857 DisplayName: m³ Description: cubic metre | ||
| ClockwiseRotation | Direction of rotation in which the shaft is seen to be turning in a clockwise direction when viewing the drive end of the shaft. A "True" status means that the rotation of pump is clockwise and a "False" status means that the rotation of pump is anticlockwise. | |
| Controllable | Indicates whether the product is a controllable pump or a self-controlling pump. A "True" status means that the pump is controllable and a "False" status means that the pump is not controllable. | |
| Cool_DownTimeForAVaporJetPumpOrADiffusionPump | The cool-down time is the time required to cool the propellant from the working temperature to a temperature at which the propellant can be exposed to atmospheric air without risk after the heating has been switched off. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5457219 DisplayName: s Description: second [unit of time] | ||
| Counter_ClockwiseRotation | Direction of rotation in which the shaft is seen to be turning in an anticlockwise direction, when viewing the drive end of the shaft. A "True" status means that the rotation of pump is anticlockwise and a "False" status means that the rotation of pump is clockwise. | |
| CriticalSpeed | Speed of rotation at which the frequency of vibration (or its multiples) corresponds to the rotor resonant (lateral or torsional) | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4405559 DisplayName: s⁻¹ Description: reciprocal second | ||
| DeclarationOfConformity | Publicly accessible attestation of conformity, commonly available on websites. | |
| DeclarationOfConformityAvailable | Whether or not a declaration of conformity exists. A "True" status means that the declaration exists and a "False" status means that there is no declaration available. | |
| DesignAxialLoad | Residual axial thrust on the pump rotor on which the thrust-bearing selection is based. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5129559 DisplayName: N Description: newton | ||
| DesignRadialLoad | Radial load of the pump rotor for which the bearing system is selected. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5129559 DisplayName: N Description: newton | ||
| DirectivesOfEUDeclarationOfConformity | Set of directives on the basis of which conformity was determined. | |
| DryCriticalSpeed | Rotor resonant frequency calculated assuming that the rotor is supported only at its bearings and that the bearings are of infinite stiffness | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4405559 DisplayName: s⁻¹ Description: reciprocal second | ||
| ExplosionProtection | Device category for explosion protection according to 2014/34/EU (ATEX). | |
| GeometricalFlow | Product of geometrical displacement volume and speed of rotation or stroke frequency | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067091 DisplayName: m³/s Description: cubic metre per second | ||
| GeometricDisplacementVolume | Displacement volume for one stroke or one cycle. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067857 DisplayName: m³ Description: cubic metre | ||
| HeadAtPeakPoint | Highest total head developed by a pump when this does not occur at a zero rate of flow | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067858 DisplayName: m Description: metre | ||
| InstallationNpshCurve | Relationship between the net positive suction head available and the rate of flow at given operating conditions for a given liquid | |
| LeakageRateOfFlow | Rate of flow leaking from shaft seals | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067091 DisplayName: m³/s Description: cubic metre per second | ||
| MaximumAllowableAmbientTemperature | Highest allowable ambient temperature for which the equipment (or any part to which the term refers) is suitable | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4932940 DisplayName: K Description: kelvin | ||
| MaximumAllowableCasingWorkingPressure | Greatest outlet pressure at the specified operating temperature at which the pump casing can be used | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5259596 DisplayName: Pa Description: pascal | ||
| MaximumAllowableContinuousSpeed | Highest rotational speed for continuous operation recommended by the manufacturer | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4405559 DisplayName: s⁻¹ Description: reciprocal second | ||
| MaximumAllowableHead | Maximum permissible head at which the pump can be continuously operated without suffering damage | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067858 DisplayName: m Description: metre | ||
| MaximumAllowableRelativeHumidity | Highest allowable relative humidity for which the equipment (or any part to which the term refers) is suitable | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 20529 DisplayName: % Description: percent | ||
| MaximumAllowableTemperature | Highest allowable continuous fluid temperature for which the equipment (or any part to which the term refers) is suitable when handling the specified operating fluid at the specified operating pressure | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4932940 DisplayName: K Description: kelvin | ||
| MaximumAllowableThroughput | Maximum pV flow the pump can withstand without damage | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4665393 DisplayName: Pa·m³/s Description: pascal cubic metre per second | ||
| MaximumAllowableWorkingPressure | Pressure for a component on the basis of materials used and on the basis of calculation rules at the specified operating temperature | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5259596 DisplayName: Pa Description: pascal | ||
| MaximumAxialLoad | Greatest value of the residual axial thrust on the pump rotor resulting from operating the pump at any condition within its allowable operating range. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5129559 DisplayName: N Description: newton | ||
| MaximumPumpPowerInput | Highest value of the pump power input at any rate of flow at any allowable operating condition | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5723220 DisplayName: W Description: watt | ||
| MaximumRadialLoad | Greatest radial load of the pump rotor resulting from operating the pump at any condition within its allowable operating range. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5129559 DisplayName: N Description: newton | ||
| MaximumStaticSealingPressure | Highest pressure, excluding hydrostatic testing, to which the seal can be subjected while the pump is shut down | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5259596 DisplayName: Pa Description: pascal | ||
| MeanTimebetweenFailures | Average of the times between failures. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4740434 DisplayName: h Description: hour | ||
| MinimumAllowableAmbientTemperature | Lowest allowable ambient temperature for which the equipment (or any part to which the term refers) is suitable | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4932940 DisplayName: K Description: kelvin | ||
| MinimumAllowableContinuousSpeed | Lowest speed for continuous operation recommended by the manufacturer | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4405559 DisplayName: s⁻¹ Description: reciprocal second | ||
| MinimumAllowableHead | Minimum permissible head at which the pump can be operated without suffering damage | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067858 DisplayName: m Description: metre | ||
| MinimumAllowableRelativeHumidity | Lowest allowable relative humidity for which the equipment (or any part to which the term refers) is suitable | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 20529 DisplayName: % Description: percent | ||
| MinimumAllowableTemperature | Lowest allowable continuous temperature for which the equipment (or any part to which the term refers) is suitable when handling the specified operating fluid at the specified operating pressure | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4932940 DisplayName: K Description: kelvin | ||
| MinimumAllowableThermalFlow | Lowest flow at which the pump can operate without its operation being impaired by the temperature rise of the pumped liquid | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067091 DisplayName: m³/s Description: cubic metre per second | ||
| MinimumContinuousStableFlow | Lowest flow at which the pump can be operated without it adversely affecting its performance in terms of life expectancy, noise and vibrations | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067091 DisplayName: m³/s Description: cubic metre per second | ||
| MinimumContinuousThermalFlow | Lowest flow at which the pump can operate without its operation being impaired by the temperature rise of the pumped liquid | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067091 DisplayName: m³/s Description: cubic metre per second | ||
| NetPositiveSuctionHeadRequired | Minimum NPSH at the pump inlet connection required to give the rated or operating performance at the specified conditions | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067858 DisplayName: m Description: metre | ||
| NetPositiveSuctionHeadRequiredForADropOf3Percent | NPSH required for a drop of 3 % in the total head of the first stage of the pump as a standard basis for use in performance curves | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067858 DisplayName: m Description: metre | ||
| OfferedControlModes | Control modes supported by the manufacturer for the product. | |
| OfferedFieldbuses | Fieldbuses supported by the manufacturer for the product. | |
| OptimumHead | Total head developed by the pump at a rate of flow corresponding to the best efficiency | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067858 DisplayName: m Description: metre | ||
| OptimumPumpPowerInput | Pump power input at the rate of flow corresponding to the best efficiency | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5723220 DisplayName: W Description: watt | ||
| OptimumRateOfFlow | Rate of flow at the point of best efficiency | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067091 DisplayName: m³/s Description: cubic metre per second | ||
| PistonVelocity | Average speed given by the stroke length multiplied with the number of complete pumping cycles of the piston, plunger or piston attached to the diaphragm per minute (stroke per minute or pump crank speed) | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067859 DisplayName: m/s Description: metre per second | ||
| PossibleFluids | Fluids that can be pumped by the pump. | |
| Pre_ChargePressure | Pressure to which the pulsation dampener is charged with dry gas prior to start of operation | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5259596 DisplayName: Pa Description: pascal | ||
| PumpClass | Pump type according to functional principle and pumped fluid | |
| PumpCurve | Representation of the pump head plotted against the flow rate | |
| PumpEfficiencyCurve | Relationship between the pump efficiency and the rate of flow at given operating conditions of speed and liquid | |
| PumpH_Q_Curve | Relationship between the total head of the pump and the rate of flow at given operating conditions /rated conditions of speed and liquid | |
| PumpNpshCurve | Relationship between the net positive suction head required and the rate of flow at given operating conditions of speed and liquid | |
| PumpPowerInputCurve | Relationship between the pump power input and the rate of flow given operating conditions of speed and liquid | |
| Shut_OffHead | Total head developed by the pump in a zero rate of flow | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067858 DisplayName: m Description: metre | ||
| Shut_OffPumpPowerInput | Pump power input at zero rate of flow | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5723220 DisplayName: W Description: watt | ||
| SlipFlow | Flow lost internally through clearances | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067091 DisplayName: m³/s Description: cubic metre per second | ||
| SoundEnergy | Integral of the sound power, P, over a stated time interval of duration T (starting at t1 and ending at t2). | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4869973 DisplayName: J Description: joule | ||
| SoundEnergyLevel | Ten times the logarithm to the base 10 of the ratio of the sound energy, J, to a reference value, J0, expressed in decibels. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 12878 DisplayName: dB Description: decibel | ||
| SoundPower | Through a surface, product of the sound pressure, p, and the component of the particle velocity, un, at a point on the surface in the direction normal to the surface, integrated over that surface. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5723220 DisplayName: W Description: watt | ||
| SoundPowerLevel | Ten times the logarithm to the base 10 of the ratio of the sound power of a source, P, to a reference value, P0, expressed in decibels. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 12878 DisplayName: dB Description: decibel | ||
| SoundPressure | Difference between instantaneous pressure and static pressure. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5259596 DisplayName: Pa Description: pascal | ||
| SoundPressureLevel | Ten times the logarithm to the base 10 of the ratio of the square of the sound pressure, p, to the square of a reference value, p0, expressed in decibels. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 12878 DisplayName: dB Description: decibel | ||
| SpecificSpeed | Speed that characterizes a pump in terms of its speed, flow rate per impeller eye, i.e. total flow for single-flow impeller, half flow for double-flow impeller, at the best efficiency point and head per stage at maximum impeller diameter | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4405559 DisplayName: s⁻¹ Description: reciprocal second | ||
| StablePumpH_Q_Curve | Pump H(Q) curve where the maximum head and shut-off head are coincidental, and the total head declines continuously as the rate of flow increases | |
| StandardGasFlowrate | Volume flow rate at standard reference conditions, i.e. 0 °C and 101 325 Pa | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067091 DisplayName: m³/s Description: cubic metre per second | ||
| StartingPressure | The starting pressure is the pressure at which a vacuum pump can be switched on and a pumping effect is achieved without damage occurring. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5259596 DisplayName: Pa Description: pascal | ||
| Suction_SpecificSpeed | Speed that characterizes a pump's cavitation performance in terms of its speed, optimum rate of flow per impeller eye at best efficiency point and NPSH3 at best efficiency point for the first stage at maximum impeller diameter | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4405559 DisplayName: s⁻¹ Description: reciprocal second | ||
| SweptVolume | Volume traversed by a single stroke of piston, plunger or diaphragm. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067857 DisplayName: m³ Description: cubic metre | ||
| TripSpeed | Speed at which the independent emergency overspeed devices operate to shut down a prime mover | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4405559 DisplayName: s⁻¹ Description: reciprocal second | ||
| TypeNumber | Pure number calculated at the point of best efficiency | |
| VolumeFlowRate | Volume flow rate of the gas removed by the pump from the gas phase within the evacuated chamber. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067091 DisplayName: m³/s Description: cubic metre per second | ||
| VolumeFlowRateOfBackingPump | Maximum volume flow rate for which the conditions are defined in the instruction manual or in a specific standard for the particular vacuum pump | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5067091 DisplayName: m³/s Description: cubic metre per second | ||
| WarmUpTimeForAVaporJetPumpOrADiffusionPump | The warm-up time is the time required to heat the blowing agent in the boiling vessel to its working temperature. The initial temperature can either be equal to the ambient temperature or equal to the temperature at which the blowing agent of the vacuum pump can be exposed to atmospheric air without risk. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 5457219 DisplayName: s Description: second [unit of time] | ||
| WaterVaporTolerableLoad | The mass flow rate for water vapor, in a gas ballast pump, in continuous operation and under normal ambient conditions, if the pumped gas is pure water vapor. | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4933459 DisplayName: kg/s Description: kilogram per second | ||
| WetCriticalSpeed | Rotor resonant frequency calculated considering the additional support and damping produced by the action of the pumped fluid within rotor | |
NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact UnitId: 4405559 DisplayName: s⁻¹ Description: reciprocal second |