DVH / DVE
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Catalog excerpts

DVH / DVE - 1

Vortex Flowmeter monitoring • analysing M easuring range (at 0 bar g): 0.2 - 5 ... 32 - 970 m3/h (liquids) 3 - 28 ... 549 - 9 034 Nm³/h (air) 3 - 18 ... 500 - 5 797 kg/h (steam) Accuracy: ± 0,7% of reading (liquids) ± 1% of reading (gases and steam) Connection: ANSI ½" ... ANSI 8", DN 15 ... DN 200 Material: stainless steel O utput: 4 - 20 mA, HART® Protocol, Modbus Sensor design without sealing Integrated temperature and pressure measurement Measurement of mass and density possible ATEX, IECEx Energy consumption (monitoring) KOBOLD companies worldwide: AUSTRALIA, AUSTRIA, BELGIUM, BULGARIA, CANADA, CHINA, CZECHIA, EGYPT, FRANCE, GERMANY, GREAT BRITAIN, HUNGARY, INDIA, INDONESIA, ITALY, MALAYSIA, MEXICO, NETHERLANDS, PERU, POLAND, Republic of Korea, ROMANIA, SPAIN, SWITZERLAND, THAILAND, TUNISIA, turkey, USA, VIETNAM KOBOLD Messring GmbH Nordring 22-24 D-65719 Hofheim/Ts. Head Office: +4

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DVH / DVE - 2

Vortex Flowmeter Model DVH Description The KOBOLD Vortex Flowmeter DVH utilises three primary sensing elements: a vortex shedding velocity sensor, a RTD temperature sensor and a solid-state pressure transducer to measure the mass flow rate of gases, liquids and steam. Systems that use external process measurements may not provide adequate compensation for the fact that process conditions can change radically between the point of velocity measurement and the point where upstream or downstream pressure and temperature measurements are being made. Because the DVH multivariable flowmeter...

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DVH / DVE - 3

Vortex Flowmeter Model DVH Technical Details (continiued) Stability over 12 month Mass flow rate: Volumetric Flow rate: Temperature: Pressure: Density: Response time: ± 0.2% of rate ± negligible ± 0.5 °C, (± 0.9 °F) ± 0.1% of full scale ± 0.1% of reading adjustable from 1 ... 100 s Wetted materials Material: stainless steel 1.4404 (316L) Models with pressure transducer: Dupont Teflon® based thread sealant Version standard temperature: Dupont Teflon® packing High temperature: graphit based packing Process and ambient temperature Standard: -200 ... 260 °C, (-330 ... 500 °F) Velocity range...

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DVH / DVE - 4

Vortex Flowmeter Model DVH Turndown: (Turndown is application dependent, can exceed 100:1) Typical saturated steam minimum and maximum flow rates Unit: [kg/h] Nominal pipe size [mm] Pressure 0 bar rel Typical air minimum and maximum flow rates (20 °C) Unit: [Nm³/h] Nominal pipe size [mm] Pressure

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DVH / DVE - 5

Vortex Flowmeter Model DVH Turndown (continued): (Turndown is application dependent, can exceed 100:1) Typical air minimum and maximum flow rates (70 °F) Unit: (SCFM) Nominal pipe size [in] Pressure 0 psig 100 psig 200 psig 300 psig 400 psig 500 psig Typical saturated steam minimum and maximum flow rates Unit: [lb/h] Nominal pipe size [in] Pressure 5 psig 100 psig 200 psig 300 psig 400 psig

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DVH / DVE - 6

Order Details (Example: DVH- V 15 1 S L L 2 S 0H) Model Material measuring Sensor configuration/ tube/flow sensor transmitter mounting V = measuring of volume for liquids, gas and steam T = flow velocity incl. temperature sensor P = flow velocity incl. temperature- and pressure sensor DVH- E = option energy consumption M =option energy consumption incl. pressure sensor = DN 15, /" ANSI = DN 20, %" ANSI = DN 25, 1" ANSI = DN 40, 1/" ANSI = DN 50, 2" ANSI = DN 80, 3" ANSI = DN 100, 4" ANSI = DN 150, 6" ANSI = DN 200, 8" ANSI = special = wafer flange DN 15 EN / /" ANSI = wafer flange DN 20 EN...

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DVH / DVE - 7

Vortex Flowmeter Model DVH Dimensions wafer style models [mm] Dimensions and weight for wafer style with integral mount transmitter No responsibility taken for errors; subject to change without prior notice.

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DVH / DVE - 8

Dimensions and weight for wafer style with remote mount transmitter Size No responsibility taken for errors; subject to change without prior notice.

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