What is the Flow rate ?
Answers were Sorted based on User's Feedback
Answer / prateek jha
Flow Rate is usually used in industries working on
hydraulic and pneumatic areas to specify the amount of
working fluid passed across a fixed cross-section areas in
fixed time. Mostly, we describe flow rate in Litre Per
Minute means how much litres of working fluid has been
passed through a given cross-section area in One minute.
Flow Rate is independent of pressure in
hydraulic i.e liquid. but is dependent on pressure in gases
as gases are compressible at pressure. Hydraulic is also
compressible but at higher pressure.
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Answer / bhaskar msc
flow rate is besed on the terms
ie, Turndown and Rangeability
turndown means ratio of full scale range to minimum scale
Rangeability means ratio of maximum rane to min range
thats the flow is based on the two terms
and i studied from PATRANBIES author
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How to Calibrate the magnetic flow meter on site ?
Calculate the maximum pressure drop that can be allowed to occur across a control valve, so that we can prevent cavitation / flashing from occurring. Use the following formula: Δ P allow = Km (P1 – PvapourA) where, Δ P allow - the maximum allowable differential pressure for sizing purposes, or terminal pressure drop; Km- the valve recovery coefficient from the manufacturer’s catalogue; P1 - absolute inlet fluid pressure; PvapourA - absolute fluid vapour pressure at the inlet temperature; Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g), PvapourA = 4 kPa, KM = 0.72
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