RE: Tell me the difference

From: <Erik>
Date: Wed Apr 13 2005 - 15:24:00 EDT


m3/h is the unit for actual volumetric flowrate, this is the volumetric flowrate at 6 bara, en t °C.
Nm3/h is the unit for volumetric flowrate at 1.013 bara and O°C(273 °K), while Sm3/h (Standard m3/h) is used in the United Kingdom and is the volmumetric flowrate at 1 bara and 15°C.

NPSH is the pressure above vapour pressure at the suction side of a pump. A stands for available, R stands for required by the pump.


Van: medhesh nirmal [mailto:medhesh_nirmal@yahoo.co.in] Verzonden: woensdag 13 april 2005 13:43
Aan: <a href="/group/PipingDesign/post?postID=8DkK7ouXIOZWFubpAR6d90VqRNFenxE5FOLSZnJSDiXU4rm-dV8T_1bnLLAp0tBuV9AdK-aPnXoG82Cl_FxmQinz7H4I">pipingdesign@yahoogroups.com</a> Onderwerp: [PipingDesign] Tell me the difference

Hi to all,
As I am really new in Piping design, I have been facing some of very basic problems like...
1) Difference between m3/hr, Nm3/hr, Sm3/hr [ what will be m3/hr, Nm3/hr & Sm3/hr of a Comp air line of 100 NB size,at 6 Kg/cm2, temp 25 deg C], 2) What is NPSHR and NPSHA of pump (water), how it affacts the flow system. If any one can answer that will be a gr8 pleasure.....

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[Non-text portions of this message have been removed] Received on Wed Apr 13 15:24:00 2005

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