Looking for a water valve that is controled by a stepper motor to control flow

[sam_sam_sam]

Hi Every One

I have one more item that i am looking for a stepper motor·water valve
I am not sure how to Google for what i·am looking for can some one help
with this or a Web Link

A gate valve or some type valve·that you mount to a stepper motor
with 3/8 pipe thread· any·good http://forums.parallax.com/images/smilies/idea.gif

Something that will not have to pay an arm and a leg for

This is for a project where i need to know how much flow·and control the flow of water and control a heater with a Basic Stamp

I can not go into any more detail than this at this time

Thank You ·for any help that give in this matter

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··Thanks for any·http://forums.parallax.com/images/smilies/idea.gif·that you may have and all of your time finding them

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Sam

Post Edited (sam_sam_sam) : 3/21/2007 1:27:30 AM GMT

[Bruce Bates]

Sam -

It sounds like a linear actuator (which is operated like a stepper motor) and a ball cock valve might do the trick for you, unless you need real fine adjustment.

Regards,

Bruce Bates

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[sam_sam_sam]

Bruce Bates


Thank You for your reply····· http://forums.parallax.com/images/smilies/smile.gif

Where would i find linear actuator

I have look at some before but they where a little price.....



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··Thanks for any·http://forums.parallax.com/images/smilies/idea.gif·that you may have and all of your time finding them

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Sam

[Phil Pilgrim (PhiPi)]

Sam,

Do you really need proportional control over the flow? If not, a solenoid valve would be a lot cheaper than one with a motor. With it, you could regulate the longterm flow by modulating the short term flow between full on and full off. And if you never wanted it to be off completely, you could install a manual bypass valve around the solenoid valve to set the minimum flow.

-Phil

[Bruce Bates]

Sam -

Here are just some examples of linear actuator:
http://www.lineractuators.com/

You will have to find one that meets your specifications.

Regards,

Bruce Bates

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