Spike Brewing 12.5 Conical Fermenter Giveaway!

Home Brew Forums > Home Brewing Beer > DIY Projects > Asco redhat 2 valve help

Reply
 
LinkBack Thread Tools
Old 07-18-2012, 11:01 AM   #1
Kyled93
Feedback Score: 1 reviews
Recipes 
 
Join Date: Mar 2011
Location: Fort Lauderdale, Florida
Posts: 233
Liked 9 Times on 8 Posts

Default Asco redhat 2 valve help

Hey all,

Not sure if this is the correct place to ask his question but here goes.

I have 2 identical red hat 2 asco valves that operate at 120v and 5-100 psi normally closed. One of my valves clicks and operates normally open when the power is supplied. The second valve seems to be always open regardless whether power supplied or not. I need a little help on what could cause the valve to stick open like that.

Is it as simple as taking apart the valve and cleaning something?

I am currently running a high pressure banjo burner setup.

Thanks for any help!

__________________
Kyled93 is offline
 
Reply With Quote Quick reply to this message
Old 07-18-2012, 11:29 AM   #2
rekoob
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
rekoob's Avatar
Recipes 
 
Join Date: Feb 2011
Location: Norfolk, VA
Posts: 865
Liked 33 Times on 28 Posts
Likes Given: 2

Default

I don't know about this valve directly but I had this happen with my solenoid valves a couple of times. This first time I took them apart and inspected the diaphragm and what not (not much to them) the second time I tapped it with a wrench and it snapped closed. I always actuate the valves now after I apply power to the system BEFORE I turn the gas on. It's only happened a couple of times and seems like it was during the first week or two of installing them. I haven't had an issue sense then, about 10 months I guess.

__________________
rekoob is offline
 
Reply With Quote Quick reply to this message
Old 07-18-2012, 11:07 PM   #3
Kyled93
Feedback Score: 1 reviews
Recipes 
 
Join Date: Mar 2011
Location: Fort Lauderdale, Florida
Posts: 233
Liked 9 Times on 8 Posts

Default

Thanks...I guess I'll have to take it apart too see what the heck it's doing..

__________________
Kyled93 is offline
 
Reply With Quote Quick reply to this message
Old 07-19-2012, 12:35 AM   #4
carlisle_bob
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2012
Location: Carlisle, PA
Posts: 1,205
Liked 27 Times on 26 Posts

Default

Hi

You can buy a rebuild kit for the valve that has most of what dies. They do indeed go bad.

Bob

__________________
carlisle_bob is offline
 
Reply With Quote Quick reply to this message
Old 07-19-2012, 12:42 AM   #5
Kyled93
Feedback Score: 1 reviews
Recipes 
 
Join Date: Mar 2011
Location: Fort Lauderdale, Florida
Posts: 233
Liked 9 Times on 8 Posts

Default

Took it apart.... I think the coil may have failed.

There is no way that it could be wired wrong right? 2 red wires and 1 green.

__________________
Kyled93 is offline
 
Reply With Quote Quick reply to this message
Old 07-19-2012, 12:48 AM   #6
carlisle_bob
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2012
Location: Carlisle, PA
Posts: 1,205
Liked 27 Times on 26 Posts

Default

Hi

This is where an ohm meter comes in handy... Even a cheap / simple one will tell you if it's blown (they pretty much always fail open).

Bob

__________________
carlisle_bob is offline
 
Reply With Quote Quick reply to this message
Old 07-19-2012, 01:16 AM   #7
Kyled93
Feedback Score: 1 reviews
Recipes 
 
Join Date: Mar 2011
Location: Fort Lauderdale, Florida
Posts: 233
Liked 9 Times on 8 Posts

Default

Bob, does this mean it should ohm 00 if it's failed?

__________________
Kyled93 is offline
 
Reply With Quote Quick reply to this message
Old 07-19-2012, 03:01 AM   #8
TonyG
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2011
Location: Dallas, TX
Posts: 95
Liked 6 Times on 5 Posts

Default

I have ran into this problem with asco, burkert, parker, and a few other brands of solenoid valves, and the majority of the time it is due to a small spec of material stuck on the rubber diaphragm. I would start by removing the plastic cap from the top of the solenoid, then the retainer clip below it, which will allow you to remove the solenoid coil. Then, remove the screws holding the valve body together, remove the rubber diaphragm and clean it with rubbing alcohol. The majority of the time you will be able to see the offending material on the diaphragm, although, I have cleaned a few without any visible issues that have been good to go afterwards. If that still doesn't work, then I would start looking into a rebuild kit or new solenoid coil if needed. If you want to eliminate the solenoid being bad, just swap the solenoid from the other valve and test it.

__________________
TonyG is offline
 
Reply With Quote Quick reply to this message
Old 07-19-2012, 03:13 AM   #9
Kyled93
Feedback Score: 1 reviews
Recipes 
 
Join Date: Mar 2011
Location: Fort Lauderdale, Florida
Posts: 233
Liked 9 Times on 8 Posts

Default

Thanks TonyG.

I was able to clean it out and inspected the parts for any foreign material. Clean as a whistle.

I ohm'ed out the coil and got 000's and I did a little research and found that I should be at least reading 80-200 ohms. I think the coil must be bad. I just ordered a new solenoid from valves for projects on eBay. Great price too 35$.

__________________
Kyled93 is offline
 
Reply With Quote Quick reply to this message
Old 07-19-2012, 05:59 PM   #10
zeus53219
HBT_SUPPORTER.png
Feedback Score: 2 reviews
 
zeus53219's Avatar
Recipes 
 
Join Date: Oct 2010
Location: Milwaukee
Posts: 293
Liked 7 Times on 6 Posts

Default

Another thing, don't power the coil while it is off the valve, you will smoke it. I would swap coils with the one you know works, to rule out valve issues.

__________________
zeus53219 is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools