GEMÜ 423

Motorized butterfly valve

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Standard formula calculator

Calculation for:

Units of length

inch

yrds

Units of temperature

°C

°F

Units of pressure

hPa

N/m²

Torr

Bar

mBar

Ksi

Psi

Volume flow

l/min

l/h

l/d

UK gal. / min

UK gal. / h

UK gal. / d

US gal. / min

US gal. / h

US gal. / d

m³/h

Weight

Tonnes (t)

Quintals (dt)

Kilograms (kg)

Grams (g)

Milligrams (mg)

Long tons (tn.l.)

Short tons (tn.sh.)

Long hundredweight (cwt.l.)

Short hundredweight (cwt.sh.)

Pounds (lb.t.)

Ounces (oz.)

Pennyweights (dwt.)

Liquids

Absolute pressure upstream of the valve (p1) in bar

Absolute pressure downstream of the valve (p2) in bar

Density (p) in kg/dm³

Flow rate (Q) in _nm³/h

Pressure differential (ΔP) in bar

Mass flow (G) in kg/h

Standard density (ρn) in kg/m³

Valve key value (KVs) in m³/h

Volume flow (Qn) in _nm³/h

Absolute temperature upstream of the valve (T1) in °C

Specific volume at p2 and t1 (V2) in m³/kg

Specific volume at p1/2 and t1 (V*) in m³/kg

Supercritical volumetric flow

Subcritical volumetric flow

Gases

Absolute pressure upstream of the valve (p1) in bar

Absolute pressure downstream of the valve (p2) in bar

Density (p) in kg/dm³

Flow rate (Q) in _nm³/h

Pressure differential (ΔP) in bar

Mass flow (G) in kg/h

Standard density (ρn) in kg/m³

Valve key value (KVs) in m³/h

Volume flow (Qn) in _nm³/h

Absolute temperature upstream of the valve (T1) in °C

Specific volume at p2 and t1 (V2) in m³/kg

Specific volume at p1/2 and t1 (V*) in m³/kg

Supercritical volumetric flow

Subcritical volumetric flow

Steam saturated

Absolute pressure upstream of the valve (p1) in bar

Absolute pressure downstream of the valve (p2) in bar

Density (p) in kg/dm³

Flow rate (Q) in _nm³/h

Pressure differential (ΔP) in bar

Mass flow (G) in kg/h

Standard density (ρn) in kg/m³

Valve key value (KVs) in m³/h

Volume flow (Qn) in _nm³/h

Absolute temperature upstream of the valve (T1) in °C

Specific volume at p2 and t1 (V2) in m³/kg

Specific volume at p1/2 and t1 (V*) in m³/kg

Supercritical volumetric flow

Subcritical volumetric flow

Water

Absolute pressure upstream of the valve (p1) in bar

Absolute pressure downstream of the valve (p2) in bar

Density (p) in kg/dm³

Flow rate (Q) in _nm³/h

Pressure differential (ΔP) in bar

Mass flow (G) in kg/h

Standard density (ρn) in kg/m³

Valve key value (KVs) in m³/h

Volume flow (Qn) in _nm³/h

Absolute temperature upstream of the valve (T1) in °C

Specific volume at p2 and t1 (V2) in m³/kg

Specific volume at p1/2 and t1 (V*) in m³/kg

Supercritical volumetric flow

Subcritical volumetric flow

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