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

Ball Valves - Flow Coefficients Cv

Flow coefficients - Cv - for typical ball valves - reduced and full bore.

Sponsored Links

A conventional ball valve is normally not used as a throttling valve since a partial flow will create high velocity flow tear at the ball and the seal.

Full Bore Valves

Typical flow coefficients - Cv - for full bore valves:

For full table - rotate the screen!

Typical flow coefficients - Cv - for full bore valves
Valve Size
inches1/23/411
1/2
22
1/2
34681012141618
mm12192537.55062.575100150200250300350400450
Flow Coefficient
C
v
26 50 94 260 480 750 1300 2300 5400 10000 16000 24000 31400 43000 57000

Reduced Bore Valves

Typical flow coefficients - Cv - for reduced bore valves:

For full table - rotate the screen!

Typical flow coefficients - Cv - for reduced bore valves
Valve Size
inches3468101214161820
mm75100150200250300350400450500
Flow Coefficient
C
v
420 770 1800 2500 4500 8000 12000 14000 18000 22000

These values are suitable for estimates only. Since the bore in valves varies the valve manufacturer should always be consulted for the actual Cv for the valve selected.

Sponsored Links

Related Topics

  • Control Valve Sizing

    Control Valve terminology, bodies, trim, flow characteristics, Cv and Kv sizing, noise, actuators, positioners and more.
  • Piping Systems

    Calculate dimensions of pipes and tubes. Pressure drop calculations and head loss charts. Use of different piping materials. Insulation of pipes and tubes and heat loss diagrams.

Related Documents

Sponsored Links

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

Citation

This page can be cited as

  • The Engineering ToolBox (2003). Ball Valves - Flow Coefficients Cv. [online] Available at: https://www.engineeringtoolbox.com/ball-valves-flow-coefficients-d_223.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

















































3.15.9

Sponsored Links
.