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-   -   pressure switch (For DIY IC SPRAY) (http://www.perth-wrx.com/vb/mechanicals/53967-pressure-switch-diy-ic-spray.html)

dtp31 28-03-2013 04:43 PM

pressure switch (For DIY IC SPRAY)
 
Hello all,

What pressure switches are people using for auto DIY IC spray circuits?

I see "hobbs" talked about.. But which one? Fixed 5 PSI?? Or adjustable 4-7PSI??

I bought a diffrent brand 0.2 BAR to 2.5 BAR adjustable. ... But in testing it.. It's more like 0.5 bar to 2.5 bar... When installed in the car it gets worse.. Kicks in around 1 bar.. i know there isn't any vac leaks.. using 3MM silicone hose to switch. (forgot to say it drives the relay.. not the pump directly..)

Any ideas? I'm hoping to have it turn ON before 0.5 BAR... I have a 10.5 L tank in the boot.. so got heaps of water...

Thanks Tim.

Saint_23 28-03-2013 06:14 PM

I have this one. You should be able to get something similar through Veale.
Adjustable from 4 to 14psi.

[url=http://www.atpturbo.com/mm5/merchant.mvc?Screen=PROD&Store_Code=TP&Product_Code=ATP-BCS-003&Category_Code=]Hobbs Switch, Boost Activated, Boost Level Adjustable : atpturbo.com[/url]

[IMG]http://www.atpturbo.com/mm5/graphics/00000001/Catalog%20Images/Accessories/ATP-BCS-003_diagram.jpg[/IMG]

riceman1991 28-03-2013 06:27 PM

I have one sitting here. got it from covs. pm me if u wana buy it cheap

s20525xxx 28-03-2013 09:54 PM

I'm using this one, and just order one for my friend:
[url=http://www.ebay.com.au/itm/330897788900?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649#ht_669wt_1271]eBay Australia: Buy new & used fashion, electronics & home d[/url]

dtp31 29-03-2013 02:42 PM

Thanks guys, I bought a hobbs one.. might look at the micro switch style..

What "on" pressure do most people run?

I have a 10.5L tank.. so was going to run quite low pressure..

Tim.

s20525xxx 29-03-2013 03:06 PM

It also depends on ur water pump flow rate, nozzles size, no. of nozzles.

I use windscreen washer bottle with 35psi water pump with smallest flow rate I could find, and four 30psi nozzle. A full tank lasts one week.


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