PDA

View Full Version : Solenoid Valves



hobbes487
02-27-2008, 02:41 AM
I wasn't sure where to post this so I am posting it here. Does anyone have any experience with solenoid valves? Specifically where to find them and what types of controllers could be used to control them? I have some ideas about automated fluid control, but I am having a hard time finding information about these kind of valves. Any help would be much appreciated.

Thanks.

Alex
02-27-2008, 09:18 AM
I wasn't sure where to post this so I am posting it here.

Hmm.... that's a really good question. We don't have any areas for Solenoids, Hydraulics & Pneumatics. We do have Servos, Motors & Linear Actuators, which involves motion of some sort, but it would look a little stupid calling a forum "Servos, Motors, Linear Actuators, Solenoids, Hydraulics & Pneumatics". It also doesn't make much sense to separate these two considering the low post count. Maybe eventually, but not just yet. I'm wondering what to call this forum though... Motion Control?

I'm open to ideas:)

DresnerRobotics
02-27-2008, 09:41 AM
Oh sure, make a "Motion Control" forum, but not an "Andrew's Johnny 5 Type Tracked Humanoid Fusion Robot" forum. :D

Matt
02-27-2008, 09:58 AM
Here are two great places to find cheap solenoids:

http://www.alltronics.com/cgi-bin/category/52

http://www.allelectronics.com/cgi-bin/category/575/Solenoids.html

You can control them with Bridgeware that has relays. Phidgets makes a 0/0/4, 0/0/8, and the 8/8/8 which can work with the dual relay adapter board.

Here's the Phidgets page
http://www.trossenrobotics.com/phidgets.aspx

DresnerRobotics
02-27-2008, 10:15 AM
^ I think Solenoid Valve's are a bit different from your standard linear solenoids. Phidgets would still provide an excellent interface for them though.

http://en.wikipedia.org/wiki/Solenoid_valve

Unfortunately, my experience with solenoids alone is meager, let alone solenoid valves.

Hobbes, may I ask what application you're using them for, out of curiousity?

Matt
02-27-2008, 10:21 AM
Oh, my bad, I read too fast. Alltronics still has two to offer:

http://www.alltronics.com/cgi-bin/item/91Z005/search/CKD%2DAB41E4%2D03%2D5%2DSolenoid%2DValve

http://www.alltronics.com/cgi-bin/item/24B035/search/Skinner%2D%2D%23C4DK1052%2DBrass%2DSolenoid%2Dvalv e

hobbes487
02-27-2008, 10:57 AM
Thanks for the quick replies. I was hoping to find some a little cheaper than that because i want at least 10. So I should be able to control any solenoid valve with and bridgeware that has relays? If so, that will make things much easier.

@Tyberius
I want to make an automated bar tender and I need one valve for each ingredient that can be controlled by the computer.

DresnerRobotics
02-27-2008, 11:20 AM
Thanks for the quick replies. I was hoping to find some a little cheaper than that because i want at least 10. So I should be able to control any solenoid valve with and bridgeware that has relays? If so, that will make things much easier.

@Tyberius
I want to make an automated bar tender and I need one valve for each ingredient that can be controlled by the computer.

Sounds like an awesome project!

And yes, phidgets would be a great platform for this project. Solenoid valves from the look of it are pretty much just standard solenoids attached to a valve mechanism, so the relay board would provide control over those quite easily.

Looking forward to seeing more of this project, it sounds like a lot of fun!

Matt
02-27-2008, 12:02 PM
Okay, I talked to Clint from Coding4fun because he made a robo bartender for Makers Faire last year. He said he used Polycarbonate Solenoid Valves with Instant Tube Connections from http://www.mcmaster.com/

It looks like they are about $50 a piece. I don't think you are going to find them much cheaper than that I'm afraid. If you build this thing please post all about it in the projects forum!

I think the Phidgets 0/0/8 (http://www.trossenrobotics.com/store/p/5551-InterfaceKit-0-0-8.aspx) would be the best fit for controlling the solenoids.

Alex
02-27-2008, 04:19 PM
thread moved to the Actuators forum:)

super-d
02-27-2008, 08:09 PM
I purchased a lot of valves from http://www.surpluscenter.com but I don't know if they will have what you are looking for. I do know they have several types of water solenoid valves but I don't know if they would be ok for beverages. The valves they sell, the cheap ones at least look like they might have been used for dishwashers or washing machines but they are cheap enough you could get one or two for a test.

My plan is to build a kegerator with some additional items but I have read you need to be careful because some guys claim, for beer at least, some of these valves can leave the beer tasting funny or like plastic.

David

cmmguy
03-03-2008, 09:20 PM
For the bartender application - which by the way is an excellent project - I would think that refrigerator icemaker/water dispenser solenoid values might be just the ticket. They are already made of material suitable for food products.
A quick eBay search found this: ( I am sure there are more out there)

http://i21.ebayimg.com/05/i/000/dd/13/ee59_1.JPG (http://cgi.ebay.com/GE-HOTPOINT-solenoid-ICE-MAKER-FILL-VALVE-WR57X110_W0QQitemZ170197247195QQihZ007QQcategoryZ7 1259QQssPageNameZWDVWQQrdZ1QQcmdZViewItem)

Matt
03-04-2008, 12:25 AM
That is an awesome suggestion! I never thought of that. Brilliant. And at $14 it's waaaay cheaper than anything else I've seen.

hobbes487
03-04-2008, 03:55 PM
Thanks for the suggestion. I found a lot of 6 on ebay for $5 with $14 shipping! Now i need to figure out what kind of board i can use to control them. I have been looking around and it seems like there are a lot of relay controller boards out there that output different amps. Can someone help point me in the right place for which type of relay board would best control these ice maker valve? Here is a link to another place that sells controllers: http://www.controlanything.com/Merchant2/merchant.mvc?Screen=CTGY&Store_Code=NCD&Category_Code=CAT_RELAY16_RS232

I know its not Phidgets, but ideally I want one that has 16 relays.

Thanks.

Dave
03-05-2008, 02:54 PM
Here is a link to another place that sells controllers: http://www.controlanything.com/Merchant2/merchant.mvc?Screen=CTGY&Store_Code=NCD&Category_Code=CAT_RELAY16_RS232

I know its not Phidgets, but ideally I want one that has 16 relays.

Do you know how much current your solenoids will require?

You could probably use the Phidget 0/0/8. It has 8 relays and two boards would cost less than one 16-channel controller from NCD. Plus, the USB would allow you to connect as many relay boards as you need. Not that I'm trying to push Phidgets on you or anything :). I just think it might be a good fit for your project.

LinuxGuy
03-29-2008, 03:55 PM
Wow, I can see some neat offshoots of a project like this, such as automated pet feeders, and others. :D You could control the amout of food dispensed and at what times.

8-Dale

Matt
03-30-2008, 03:32 PM
Automatic plant watering system too!

DresnerRobotics
03-31-2008, 11:54 AM
Automatic plant watering system too!

Careful now, we'll have pot farmers flooding these forums soon with talk like that :P