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FLT-40G_FLT-40SA_FLT-40ST_FLT-40C_FLT-40T流量計(jì)OMEGA

Multitube Assemblies

Gas Proportioners

The flow tubes shown on this page can be installed into the FL3000, gas proportioning FL-1GP Series or multiple tube FL-2AA Series 150 mm rotameters. Flow capacities shown are based on calibrations with air and water at 21°C (70°F) and 14.7 psia. For other fluids or conditions, the following equations provide rough approximations.

GAS

Qa = Qg x [G x (Ta/T0) x (P0/Pa)]1/2

where:

Qa = equivalent air flow scale reading at Standard Conditions

Qg = true flow of metered gas

G = specific gravity of metered gas

Ta = absolute temperature at flow conditions (Kelvin or Rankine)

T0 = absolute temperature at standard conditions (294 K or 530°R)

Pa = pressure at flow conditions (psia)

P0 = pressure at Standard Conditions (14.7 psia)

FLT-40G_FLT-40SA_FLT-40ST_FLT-40C_FLT-40T流量計(jì)OMEGA

多管組件

氣體比例調(diào)節(jié)器

本頁所示的流量管可安裝在FL3000、氣體比例FL-1GP系列或多管FL-2AA系列150 mm轉(zhuǎn)子流量計(jì)中。所示流量基于21°C（70°F）和14.7 psia下空氣和水的校準(zhǔn)。對(duì)于其他流體或條件，以下方程提供粗略的近似值。

氣體

qa=qg x[g x（ta/t0）x（p0/pa）]1/2

哪里：

qa=標(biāo)準(zhǔn)條件下的等效空氣流量標(biāo)度讀數(shù)

Qg=計(jì)量氣體的真實(shí)流量

g=計(jì)量氣體的比重

Ta=流動(dòng)條件下的絕對(duì)溫度（開爾文或朗肯）

t0=標(biāo)準(zhǔn)條件下的絕對(duì)溫度（294 K或530°R）

pa=流動(dòng)條件下的壓力（psia）

p0=標(biāo)準(zhǔn)條件下的壓力（14.7 psia）

FLT-40G_FLT-40SA_FLT-40ST_FLT-40C_FLT-40T流量計(jì)OMEGA

Multitube Assemblies

Gas Proportioners

The flow tubes shown on this page can be installed into the FL3000, gas proportioning FL-1GP Series or multiple tube FL-2AA Series 150 mm rotameters. Flow capacities shown are based on calibrations with air and water at 21°C (70°F) and 14.7 psia. For other fluids or conditions, the following equations provide rough approximations.

GAS

Qa = Qg x [G x (Ta/T0) x (P0/Pa)]1/2

where:

Qa = equivalent air flow scale reading at Standard Conditions

Qg = true flow of metered gas

G = specific gravity of metered gas

Ta = absolute temperature at flow conditions (Kelvin or Rankine)

T0 = absolute temperature at standard conditions (294 K or 530°R)

Pa = pressure at flow conditions (psia)

P0 = pressure at Standard Conditions (14.7 psia)

LIQUID

Qw = QL x [(df - dw)/(df - dL)) x (dL/dw)]1/2

where:

Qw = equivalent water flow capacity at Standard Conditions

QL = max flow of metered liquid

df = density of float selected

Glass: 2.53 g/ml

Sapphire: 3.98 g/ml

Stainless Steel: 8.04 g/ml

Carboloy: 14.98 g/ml

Tantalum: 16.58 g/ml

dL = density of metered liquid, g/ml

dw = density of water at Standard Conditions (1.0 g/ml)

(note: does not include viscosity effect)