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Anonymous Poster #1

Fastest Ball Valve

12/02/2012 6:16 AM

For a ball valve for control application,

1. Which actuator type is fastest to operate (pneumatic cylinder/diaphragm, electric motor)?

2. What is minimum time required to fully open from close position for 6" or 8" ball valve?

Thanks in advance.
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Fredski
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Join Date: Feb 2011
Posts: 7025
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#1

Re: Fastest Ball Valve

12/02/2012 9:16 AM

it might help if you stated your application as well as the material flow you're working with
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lyn
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Join Date: Oct 2008
Posts: 42355
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#2

Re: Fastest Ball Valve

12/02/2012 9:17 AM

Why not ask the people who make them?

  1. Apollo Valves
  2. Ball Valves
  3. Ball Valves - Valtorc International - Ball Valves, Butterfly Valves, V ...
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2
P.Nithin Kumar
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Join Date: Dec 2010
Location: Hyderabad,Telangana , India
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#3

Re: Fastest Ball Valve

12/02/2012 9:19 AM

Normally, it is better to have a Slow Operation of Ball valve which is used for Control Application(for fine tuning the flow of fluid).

1. Compartively, Pneumatic Cylinder will Operate fastly but the Open/close Operation depends on the Location of the Equipment ,Type of Application , nature of load , Fluid used e.t.c for which this Pneumatic Cylinder can withstand or not ?

If the Load on the Ball valve is high (Fluid Pressure is high) it is better to use Electric Motor with Brake Unit arrangement controlled by PLC.

2. Time Required for Opening depends on the type of actuator what we provided . Even we can Operate the Valve within 1-2 sec

Nithin

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Anonymous Poster #1
#8
In reply to #3

Re: Fastest Ball Valve

12/13/2012 9:50 AM

GA Nitin & congratulation for your first GA.

"Time Required for Opening depends on the type of actuator what we provided . Even we can Operate the Valve within 1-2 sec"

can you answer more specifically, for 6" or 8" ball valve, with which actuator, minimum time required will be how much?
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CaptMoosie
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#4

Re: Fastest Ball Valve

12/02/2012 9:29 AM

Why on Earth do you want a fast operating ball valve? You should use a slow-closing operator instead.....

You're setting yourself up for "Hydrodynamic Shock" (aka "Water Hammer"), hence you could possibly damage your pipes, valves, flow meters, and pumps.

Be careful what you wish for!

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Anonymous Poster #1
#9
In reply to #4

Re: Fastest Ball Valve

12/13/2012 10:02 AM

It is MY wish CaptMousie. I missed to tell about fluid, it's dry air. No flow meters, no pumps to get damaged, only valves and piping. I will be a good information if you could tell at what speed of valve operation, valves and piping will get damaged?
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walt
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Join Date: Nov 2012
Location: Central New York
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#5

Re: Fastest Ball Valve

12/02/2012 6:26 PM

without any other information, it reads like you are building a pumpkin cannon. in this application, air is the way to go operating a butterfly valve. actually, i think a butterfly valve would be the only thing i would use as a fast acting valve.
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lyn
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#6
In reply to #5

Re: Fastest Ball Valve

12/02/2012 7:09 PM

OP can't be a punkin' chuncker. All the words are spelled correctly.
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PWSlack
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#7

Re: Fastest Ball Valve

12/03/2012 3:57 AM

A ball valve might just be the wrong tool for the job.

<...6" or 8"...> Sheesh.

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Users who posted comments:

Anonymous Poster (2); CaptMoosie (1); Fredski (1); lyn (2); P.Nithin Kumar (1); PWSlack (1); walt (1)

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