et

rõhulangus

1 substantive

Terminological databases

Metroloogia terminibaas

ID 573746 Last modified 21.03.2026
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Domain Standardisation - Metrologymeasuring procedures
rõhulang preferred
rõhulangus
rõhukadu
Δp
survelang
survelangus
pressure loss preferred
Δp
pressure drop
pressure gradient
head loss
baric gradient
  • antud voomahu juures veearvesti olemasolust põhjustatud vältimatu rõhu vähenemine torus
  • rõhu erinevus voo kahe asukoha vahel
  • irrecoverable decrease in pressure, at a given flow rate, caused by the presence of the water meter in the pipeline
  • non-recoverable pressure drop caused by the presence of the meter in the pipeline
  • non-recoverable pressure drop caused by the presence of the turbine meter in the conduit
  • difference of pressure between two positions in the flow path
  • irrecoverable pressure loss caused by the presence of a primary device in the conduit
rõhulang preferred
Usage examples
  • Andmed rõhulangu kohta veearvesti tüübi ja mõõtmete või vajaduse korral arvesti paketi kohta esitab tootja.
rõhulangus
rõhukadu
Δp symbol
survelang
survelangus
survekadu
pressure loss preferred
Usage examples
  • Pressure loss data for the meter type and size or meter package, as appropriate, shall be provided by the manufacturer.
Δp symbol
pressure drop
pressure gradient
head loss
baric gradient
hydraulic gradient variant

Metroloogia terminibaas

ID 585459 Last modified 29.12.2025
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View dataset
Domain Standardisation - Metrology
rõhulang preferred
rõhuvahe
rõhulangus
static pressure loss preferred
pressure differential
  • keskmine erinevus gaasiarvesti sisse- ja väljalaskeava rõhu vahel gaasi voolamise ajal
  • mean difference between the pressures at the inlet and outlet of the gas meter while the gas is flowing
rõhulang preferred
Usage examples
  • Vedelike torustikus voolamisel tekib rõhulang, seotuna vedeliku hõõrdumisega vastu torustiku seina.
rõhuvahe
rõhulangus
∆p symbol
static pressure loss preferred
Usage examples
  • When liquids flow in a pipeline, a static pressure loss occurs due to the friction of the liquid against the pipe wall.
pressure differential
∆p symbol

Metroloogia terminibaas

ID 1148986 Last modified 24.03.2026
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View dataset
Domain Standardisation - Metrology
  • tõmbekapi staatiline rõhk väljatõmbesüsteemi ühenduspunktis, mõõdetuna ruumi staatilise rõhu suhtes
  • static pressure of a fume cupboard at the point of connection to the extract system measured with respect to the static pressure of the room
rõhulangus
Usage examples
  • Rõhulangus tekib siis, kui hõõrdejõud, mis on põhjustatud vootakistustest, mõjuvad tõmbekapi tõmbeõhule, kui õhk voolab läbi tõmbekapi.
pressure drop
Usage examples
  • Pressure drop occurs when frictional forces caused by flow resistances act on the fume cupboards exhaust air as the air flows through the fume cupboard.

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