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【Daily Question 20090204】Definition of the flow coefficient C

2009-02-04View Original

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To liven up the atmosphere in the area dedicated to technical exchanges on instruments and meters, enhance everyone’s knowledge, and enable collective learning, we are continuing with the “One Question per Day” activity; participants will receive prizes, with those who answer correctly getting special rewards! Can you answer correctly without looking up information? 【Daily Question 20090204】Definition of the flow coefficient C. The definition of the flow coefficient C is: when the control valve is fully open, the pressure difference before and after the valve is __________, the density of the fluid is ___________, and then, for every __________, the amount of fluid that passes through is ___________. Answer: 100KPa, 1g/cm3, hours, cubic meters. 3 points for each participant, 5 points for those who give the correct answer! This post was last edited by baodingzhai on 2009-2-5 08:51]
Reply #22009-02-04
The flow coefficient C is defined as the volume of fluid that passes per hour when the control valve is fully open, the pressure difference before and after the valve is 1 kilogram, and the density of the fluid is 1.
Reply #32009-02-04
The flow coefficient C is defined as: when the control valve is fully open, the pressure difference before and after the valve is ____0.1 MPaG____, the density of the fluid is ______1 g/cm3_____; then, per ____unit of time______, the amount of fluid that passes through is the ___flow rate_______.
Reply #42009-02-04
0.1MP, 1kgf/c㎡, one hour, cubic meter. Last edited by qidongzhj on 2009-2-4 19:09.]
Reply #52009-02-04
The volume of fluid that passes per hour when the control valve is fully open, with a pressure difference before and after the valve of 1 kilogram and a fluid density of 1. :)
Reply #62009-02-04
The flow coefficient C is defined as the amount of fluid (flow rate) that passes per (unit time), when the control valve is fully open, the pressure difference before and after the valve is (0.1 MPaG), and the density of the fluid is (1 g/cm3).
Reply #72009-02-04
Definition of the flow coefficient of a control valve: The volume of water at 5–40°C that passes through the control valve in 1 hour under a pressure drop of 0.1 MPA. CV=1.17C ; KV=1.01C
Reply #82009-02-04
The flow coefficient C is defined as the volume of fluid that passes per hour when the control valve is fully open, the pressure difference before and after the valve is 0.1 MP, and the density of the fluid is 1 g/cm3.
Reply #92009-02-04
The definition of the flow coefficient C is: the volume of fluid that passes per hour when the control valve is fully open, the pressure difference before and after the valve is 1 kilogram, and the density of the fluid is 1
Reply #102009-02-04
The definition of the flow coefficient C is: when the control valve is fully open, the pressure difference before and after the valve is ___0.1 MPa_______, the density of the fluid is ____1 g/cm3_______, then the volume of fluid that passes through in each ______hour____ is _____.
Reply #112009-02-04
The flow coefficient C is defined as: when the control valve is fully open, the pressure difference before and after the valve is _1 Kgf/cm2_, the density of the fluid is ____1 g/cm3____, then the volume of fluid that passes through in each _____ hour_____ is ____cubic meters_____.
Reply #122009-02-04
The definition of the flow coefficient C is: when the control valve is fully open, the pressure difference before and after the valve is __100KPa________, the specific gravity of the fluid is __lgf/cm _________, then the volume of fluid that passes through per ____hour______ is ____.
Reply #132009-02-04
The flow coefficient C is defined as the volume of fluid (in cubic meters) that passes per hour when the control valve is fully open, the pressure difference before and after the valve is (0.1 MPaG), and the density of the fluid is (1 g/cm3).
Reply #142009-02-04
The flow coefficient Kv of a control valve is defined as the volume of fluid that passes through it per hour, when the valve is fully open, the pressure difference across the valve is 100 KPa, and the density of the fluid is 1 g/cm3 (i.e., normal temperature water). Kv is measured in mhttp://www.cngspw.com/Doc/data.WebNoteBooks/20060701203125/zs3.gif/h or t/h. For example: If a control valve has a Kv value of 150, it means that when the pressure difference across the valve is 100 KPa, the water flow rate is 150 m³/h. http://www.cngspw.com/Doc/data.WebNoteBooks/20060701203125/zs3.gif The definition of Cv is: the flow rate per minute through the control valve, in gallons per minute, when the valve is fully open, the pressure difference across the valve is 1 pound per square inch, and the fluid is clean water at 60°F. Due to the different definitions of Kv and Cv, the values measured in experiments differ; the conversion relationship between them is: Cv = 1.167Kv. This post was last edited by xu*ang309 on 2009-2-4 at 15:20.]
Reply #152009-02-04
The definition of the flow coefficient C is: when the control valve is fully open, the pressure difference before and after the valve is __________, the density of the fluid is ___________, and every __________, the amount of fluid that passes through is ___________. Answer: 100KPa 1gf/cm3 hours cubic meters
Reply #162009-02-04
The flow coefficient C is defined as the volumetric flow rate per hour that passes through the valve when the control valve is fully open, the pressure difference before and after the valve is 1 kg/cm2, and the density of the fluid is 1 g/cm3. This post was last edited by Mobei Yihai on 2009-2-4 17:40]

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