Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Vertical Pipes - Discharge Height vs. Volume Flow

Volume flow and discharge height from vertical water pipes.

Maximum vertical discharge height for water flow from vertical oriented pipe or tube:

Water discharge from vertical pipe - maximum height

Vertical Discharge - Imperial Units

Water discharge from vertical pipe - maximum height chart - imperial units

  • coefficient k = 0.96

Vertical Discharge - Metric Units

Water discharge from vertical pipe - maximum height chart - metric units

The maximum height for water discharge from vertical pipe can calculated as:

h = (Q / (5.68 k d2))2                                (1)

where

h = discharge height (inches)

Q = flow (gpm)

k = coefficient ranging 0.87 - 0.97

d = diameter of pipe (inches)

  • 1 in (inch) = 25.4 mm
  • 1 gal (US)/min = 6.30888x10-5 m3/s = 0.227 m3/h = 0.06309 dm3(litre)/s = 2.228x10-3 ft3/s = 0.1337 ft3/min = 0.8327 Imperial gal (UK)/min

Measuring Flow - the Trajectory Method

The discharge from a vertical oriented pipe can be calculated by rearranging eq. (1) to 

Q = 5.68 k d2 h1/2                      (1b)

The challenge with this flow measurement method may be to measure the height h.

Example - Measuring Flow by measuring the Discharge from a Vertical pipe

The discharge height from a vertical oriented 4 inches pipe is 3 ft (36 inches). With a coefficient k = 0.97 the flow from the pipe can be estimated to

Q = 5.68 0.97 (4 in)2 (36 in)1/2  

   = 529 gpm 

Related Topics

  • Flow Measurements

    Flow metering principles - Orifice, Venturi, Flow Nozzles, Pitot Tubes, Target, Variable Area, Positive Displacement, Turbine, Vortex, Electromagnetic, Ultrasonic Doppler, Ultrasonic Time-of-travel, Mass Coriolis, Mass Thermal, Weir V-notch, Flume Parshall and Sluice Gate flow meters and more.

  • Water Systems

    Design of hot and cold water service and utility systems with properties, capacities, sizing of pipe lines and more.

Related Documents

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

Citation

This page can be cited as

  • The Engineering ToolBox (2009). Vertical Pipes - Discharge Height vs. Volume Flow. [online] Available at: https://www.engineeringtoolbox.com/discharge-height-vertical-pipe-d_1529.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































4.19.9

.