3/2 valve as main valve?

[bookyle]

I found that Clippard makes solenoid valves, and here is the selection page

http://www.clippard.com/store/byo_maximatic/byo_ev.asp

one thing I want to get clear is should I choose direct acting spring return, or electronic piloted spring return?

if I choose electronic piloted spring return I get this
http://www.clippard.com/store/display_d ... 32QES-W012#

if direct acting spring return I get this
http://www.clippard.com/store/display_d ... -3QDS-D012#

On a side note, what is gourmet for wire attachment?

[Gun Freak]

Clippard is ridiculously expensive plus they nail you on shipping AND handling, which is about 20 bucks extra.

[POLAND_SPUD]

one thing I want to get clear is should I choose direct acting spring return, or electronic piloted spring return?

you want an indirect acting valve... that's electronic piloted spring return

[bookyle]

Sorry Poland, I'm really not sure what all these different terms mean.

If I'm understand correctly, an indirect acting solenoid uses the solenoid to pilot a small valve, which in turn move the spool to a different position. And a direct acting solenoid valve uses the solenoid itself to move the spool.

Now, what does electronic piloted mean? I thought it meant the same as indirect acting solenoid...

[POLAND_SPUD]

If I'm understand correctly, an indirect acting solenoid uses the solenoid to pilot a small valve, which in turn move the spool to a different position. And a direct acting solenoid valve uses the solenoid itself to move the spool.

yes, you understand it correctly

Now, what does electronic piloted mean? I thought it meant the same as indirect acting solenoid...

what is a pilot valve? it's a valve that opens a larger valve... the term electronic piloted valve basically means the same as indirect acting solenoid valve

[bookyle]

Thanks Poland, now everything is clear

Clippard is ridiculously expensive plus they nail you on shipping AND handling, which is about 20 bucks extra.

Yea, the valve itself is $26, but Clippard adds another $17 for shipping and handling, lol

Looks like I'm stuck with Clippard for this one, really can't find another 3/2 indirect acting solenoid valve for cleaper

[POLAND_SPUD]

well what about this one?? http://www.ebay.com/itm/3V210-08-DC-24V ... 5ae4a848c0

15$ + 2$ shipping

[bookyle]

well what about this one??

I looked at that one before, it's normally closed, and it's 24v.

Ideally it should be 12v NO.

But then again, I could just put 2 3cell lipo in series, and that will give me 22.2 v

edit:

is it me or a lot of model numbers on ebay are not complete? Like the link poland posted, the model number should say NO or NC, also the thread dimentions

[Jimmy K]

I bought mine here:

http://www.automationdirect.com/adc/Sho ... id_Valves/

They will have much much faster processing and shipping - Same day shipping with FedEx for about $5. The total for me was about $32 (I got it the next day, too). Plus they're based in the US (Atlanta) and have a great tech support team.

[bookyle]

Is there any way to convert a normally closed valve to a normally open one?

Either of these two valves are good, but they are both normally closed.

http://www.automationdirect.com/adc/Sho ... S-3212-24D

http://www.ebay.com/itm/3V210-08-DC-24V ... 5ae4a848c0

Can the conversion be done? Or is it just too difficult to be practical?

[POLAND_SPUD]

I looked at that one before, it's normally closed, and it's 24v.

the symbol suggests it is a NO valve... the box on the right is the normal position... there is an arrow from P (air source) to A (the port where you attach the barrel in a QEV + 3 way combo or, in your case, the chamber)

it's up to you to decide whether it's better to pay more

[bookyle]

the symbol suggests it is a NO valve...

Wait what? On the manufacture website, is the symbol flipped over? Or it's just that I can't understand those symbols?

http://en.airtac.com/pro_det.aspx?c_kin ... 5=77&id=47


edit

is the box on the right always the normal position? If that's the case, I'm reading everything wrong...

edit 2

the picture of the valve on the manufacture website has the same symbol on it, and on the valve it said NC

[Gun Freak]

Why would you go through all this trouble and money to use a poor main valve? An electric 3-way isn't exactly optimum.

[bookyle]

Why would you go through all this trouble and money to use a poor main valve? An electric 3-way isn't exactly optimum.

then what should I use?

I don't want to use a qev+3way because of the wasted pilot air, and the noise from the pilot

Can't really use a piston valve, because I can't think of a way for it to fit inside my airsoft boltaction rifle

What would be optimum if I want to fit the valve and the actuation mechanism to fit inside the receiver of an airsoft gun? I'm using regulated co2 as the air source.

[Gun Freak]

I didn't know you wanted it to fit in the small space. For that purpose, I suppose it will work. I still think it's ridiculously expensive though...

What about a mechanically actuated:
http://www.ebay.com/itm/Pneumatic-valve ... 45fe3000cd