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Home Brew Forums > Home Brewing Beer > Automated Brewing Forum > electronic valves
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Old 11-24-2012, 11:09 PM   #51
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I'm not sure why there don't seem to be 3 way valves that have a shut-off position...seems very useful, and probably not *that* expensive to implement.

Solenoid valves typically have a small pin that shuts off flow...when you energize the solenoid it pulls the pin so that liquid flows. The problem is that they seem to all have very small ports...they may be 1/2 inch valves or whatever, but the hole for liquid to flow through is (at least in the one I ordered) about 1/16". The way this is set up will make this VERY hard to clean as well. I learned this after ordering one as I too just saw the cheap prices. I ended up ordering the electronic ball valves from the link earlier in this thread.
WHEW!!! I guess I dodged another chance to prove that there really IS such a thing as a stupid question!

Thanks for the clarity... I figured I'd be getting what I paid for if I went with the electrical valves, but just wasn't sure of what that additional value would be. Just getting a full-port valve is enough, as I have a handful of stainless steel 2-way manual valves sitting in a box in the garage because they weren't full port... didn't see that feature NOT being mentioned in the description as I ordered a bunch of them

Thanks!!
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Old 11-24-2012, 11:46 PM   #52
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On the 3-Way L-Port Motorized Ball Valve, it looks like the flow is being directed one of two directions - either to the left or to the right (for the lack of better descriptors). Do they also shut off entirely, or are they always open to flow, and only the direction can change? I need a valve to either be closed (no flow), open-left (HLT), or open-right (MT). If the 3-way won't shut off, then I'll need to put a 2-way valve in front of it.
3-way valves come either "L" or "T" configurations. In the "L" configuration, the flow is always open between two ports; in the "T" configuration, the valve can generally be rotated so it's fully shut off.

Not sure if there are automated valves offered in the "T" configuration but this was my experience when purchasing manual valves.

See configurations below:

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Old 11-25-2012, 02:00 AM   #53
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jpalarchio - Yeah, it's that LAST one on the L-port that I'm trying to find implemented in an electronic valve, e.g., all flow stopped, but I haven't been able to identify an electronic valve that offers that state, only the first two (flow right, flow left).

Unless I'm missing something in all the advertisements... maybe it's "assumed" that there is an "off" state?

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Old 11-25-2012, 03:41 AM   #54
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BTW, as far as full port or reduced port on ball valves, look at the connectors on your March pump; it's reduced port. So I'm not sure full or reduced port really matters (solenoids are another story).

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Old 12-02-2012, 10:49 PM   #55
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The rating for http://www.tf-valvefittings.com/goods-27.html are 0°-100°C (32°-212°F) right? So im not understanding why there is any issue with these valves?

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Old 04-04-2013, 12:56 AM   #56
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Did anyone ever buy any valves from tf-valvefittings.com?

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Old 04-05-2013, 02:32 AM   #57
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I bought from them. Prices/shipping were reasonable and the whole process only took a couple weeks. I haven't tried out the valves yet, but having a paypal option was a big plus for me.

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Old 04-05-2013, 06:31 PM   #58
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Thanks. It saves money but I wanted to at least get a little feedback before ordering.

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Old 04-05-2013, 09:51 PM   #59
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I have them but have not used them yet, Sorry.

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Old 04-07-2013, 01:49 AM   #60
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Thanks. It saves money but I wanted to at least get a little feedback before ordering.
I tried the valve today and it works. So, that should give you a little more confidence.
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