×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

electronic valve search

electronic valve search

electronic valve search

(OP)
hi im looking for a electric or electronic valve to control propane gas flow. low psi

regards

killa

RE: electronic valve search

How large or small is the line?
Is this for on/off or throttling?
Pneumatic force is normally used within the process industry to move the valve and an electrical signal is used to throttle or switch the pneumatic medium such as an instrument air supply.  Solenoid valves can switch the air for on/off applications.  For small valves, perhaps less than one-inch, solenoids operate the valve directly.  Hydraulic fluid is used for very large forces.  Electical motor operated and self-contained electro-hydraulic actuators can control valves where no air supply exists.

Fisher (look for Emerson Process/Fisher-Rosemount, etc.) is among the leaders with good stuff  such as a "Control Valve Handbook" on the web.  

John

RE: electronic valve search

(OP)
but i dont know how to deliver 30% or 50% or 90% off the gas valve using a solenoid one.

the valve is less than one inch.

how fast can i turn on and off such a solenoid to achieve PWM control?

regards

killa

RE: electronic valve search

Maybe try contacting an electronic actuator manufacturer (e.g. Rotork, EIM) to see what sizes of actuator they have that would be suitable for your valve.

RE: electronic valve search

If you could figure out how to use a 24Vdc 3-way, 2-position solenoid valve for compressed air or inert gasses from 28" Hg vacuum to 125 psig pressure, here's a bargain I noticed a few days ago: <allelectronics.com>  CAT# SV-4

RE: electronic valve search

If you don't have instrument air, you can always use propane. We often do at remote sites.

RE: electronic valve search

(OP)
sorry, so im looking for an electronic or electric actuator and not a electronic valve.

what do you mean with instrument air?

i will use low pressure propane.

thanks, im aiming to what i need

Regards

killabyte

RE: electronic valve search

A valve is a piece of metal, plastic, other material, that is in a pipe/line, and provides a "restriction" to flow.

When people say electric valve, it is usuall taken to mean an electric actuator on a valve. An electric actuator uses electricity to move/stroke a valve.

An alternative is to use a pneumatic actuator. In which case, air (or N2, fuel gas, etc.) is used to move/stroke the valve instead of electricity.

RE: electronic valve search

(OP)
thanks fopr your help, ill start loking for electric actuators for propane gas purposes.

regards

killa

RE: electronic valve search

There is a company out there that does little BUT gas valves.  Here is a link:
http://www.maxoncorp.com/gas-valves.html
Seems like every time I walk up to a package boiler it is festooned with Maxon valves.  I have no affiliation or specific experience with these guys, but installed base speaks to their success.  

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources