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

- the most efficient way to navigate the Engineering ToolBox!

Ball Valve Flow Coefficients - C_v

Flow coefficients - C_v - 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 - C_v - for full bore valves:

For full table - rotate the screen!

Valve Size
inches	1/2	3/4	1	1 1/2	2	2 1/2	3	4	6	8	10	12	14	16	18
mm	12	19	25	37.5	50	62.5	75	100	150	200	250	300	350	400	450
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 - C_v - for reduced bore valves:

For full table - rotate the screen!

Valve Size
inches	3	4	6	8	10	12	14	16	18	20
mm	75	100	150	200	250	300	350	400	450	500
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 C_v for the valve selected.

Sponsored Links

Related Topics

Piping Systems - Dimensions of pipes and tubes, materials and capacities, pressure drop calculations and charts, insulation and heat loss diagrams
Control Valves - Control Valve terminology, bodies, trim, flow characteristics, Cv and Kv sizing, noise, actuators and positioners

Related Documents

Butterfly Valves - Typical Flow Coefficients - C_v - Butterfly valves and typical flow coefficients - C_v
Control Valves - adding K_v or C_v values - K_v or C_v for control valves in series or parallel
Control Valves - Sizing and Selection - Size and select control valves to match process requirements
Control Valves and Cavitation - Control valves and cavitation, application ratio and multi stage control valves
Control Valves and Flow Characteristics - Relationship between control valve capacity and stem move
Flow Coefficient C_v versus Flow Factor K_v - Comparing flow coefficient C_v and flow factor K_v
Flow Coefficients - C_v - and Formulas for Liquids, Steam and Gases - Online Calculators - Flow coefficient and proper design of control valves - Imperial Units
Steam Control Valves - Calculating K_v Values - Design of steam control valves and their K_v values
Straight Through Diaphragm Valves - Flow Coefficients - C_v - and Flow Factors - K_v - Typical flow coefficients - C_v - and flow factors - K_v - for straight through diaphragm valves
Valve Authority - The valve authority expresses the ratio between pressure drop across the control valve compared to total pressure drop across the whole system
Water Control Valves - Calculating K_v Values - Design of water process control valves and their K_v values
Water Control Valves - flow coefficient C_v diagram - Sizing of water control valves
Water Systems - Valves and K_v diagram - K_v diagram for sizing control valves

Tag Search

en: ball valves flow coefficients
es: válvulas de bola coeficientes de caudal
de: Kugelhähne Durchflusskoeffizienten

Sponsored Links

Search the Engineering ToolBox

- the most efficient way to navigate the Engineering ToolBox!

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

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 the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse!

Translate this page to

About the Engineering ToolBox!

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.

Advertise in the ToolBox

If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. You can target the Engineering ToolBox by using AdWords Managed Placements.

Citation

This page can be cited as

Engineering ToolBox, (2003). Ball Valve Flow Coefficients - C_v. [online] Available at: https://www.engineeringtoolbox.com/ball-valves-flow-coefficients-d_223.html [Accessed Day Mo. Year].

Modify access date.

close

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!

Scientific Online Calculator

Scientific Calculator

5 24

Sponsored Links