Manometer Application Equation for Pressure

Fluids Flow Engineering
Hydraulic & Pneumatic Design Engineering

U-Tube Manometer Equation and Calculator

A Manometer is an instrument for measuring gas or vapor pressure- especially at low levels. Manometer's are used to measure the difference between dynamic and static pressures and may be configured as a u-tube, a single tube, or inverted depending on the application.


U-tube manometer measuring pressure relative to atmosphere (gauge pressure) equation.

U-Tube Manometer

p = pmgh

Where:
pm = density of manometer fluid (kg/m3 , lb/in3)
h = manometer reading or height difference (m, in)
g = acceleration due to gravity (9.81 m/s2 , 32.174 in/s2)
p = Measured pressure ( N/m2, lb/in2)

Open: Manometer Pressure Calculators


U-tube manometer - differential pressure Equation

U-tube manometer - differential pressure Equation

p = p1 - p2 = ( pm - pf) g h

Where:
p1 - p2 = Pressure Difference
pm = density of manometer fluid (kg/m3 , lb/in3)
pf = density of measured fluid. (kg/m3 , lb/in3)
h = manometer reading or height difference (m, in)
g = acceleration due to gravity (9.81 m/s2 , 32.174 in/s2)
p = Measured Pressure Difference ( N/m2, lb/in2)

Open: Manometer Pressure Calculators


Single-leg manometer - Gauge Pressure Equation

Single-leg manometer - Gauge Pressure Equation

Measured pressure p = pmgh

Where:
p = Measured Pressure Difference ( N/m2, lb/in2)
pm = density of manometer fluid (kg/m3 , lb/in3)
h = manometer reading or height difference (m, in)
g = acceleration due to gravity (9.81 m/s2 , 32.174 in/s2)

Open: Manometer Pressure Calculators


Inclined single-leg manometer Measured Pressure Equation

Inclined Single Leg Manometer

Measured pressure p = pmgL sinθ‚Äč

Where:
p = Measured Pressure Difference ( N/m2, lb/in2)
pm = density of manometer fluid (kg/m3 , lb/in3)
g = acceleration due to gravity (9.81 m/s2 , 32.174 in/s2)
L = Length (m, in)
θ = Angle

Open: Manometer Pressure Calculators


Inverted U-tube manometer Equation

u-tube inveted

Pressure difference (p1 - p2) = (pf - pm)gh

Where:
p = p1 - p2 = Pressure Difference ( N/m2, lb/in2)
pm = density of manometer fluid (kg/m3 , lb/in3)
pf = density of measured fluid. (kg/m3 , lb/in3)
h = manometer reading or height difference (m, in)
g = acceleration due to gravity (9.81 m/s2 , 32.174 in/s2)

Open: Manometer Pressure Calculators


Related

Contribute Article
Spider Optimizer

© Copyright 2000 - 2017, by Engineers Edge, LLC www.engineersedge.com
All rights reserved
Disclaimer | Feedback | Advertising | Contact


User Reviews/Comments:

There are currently no comments available.


Add a Comment (you must be logged in to post comment Register):
Name:
Email: (Optional)
Comment: