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Author Valve experts? Anyone know much about valves
micra_pete
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Registered: 23rd Apr 03
Location: West Yorkshire
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11th Apr 12 at 10:03   View Garage View User's Profile U2U Member Reply With Quote
A real longshot this one, but with the mix of knowledge on here it was worth a go!

I need 'something' like this. 50mm ish passive one way valve that will open according to flow.



why not buy that you may ask, well its american and a little more than I wanted to spend by the time it would get here.

Any ideas? its for a car application btw.
tom130691
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Registered: 13th Sep 08
Location: Daventry
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11th Apr 12 at 10:13   View Garage View User's Profile U2U Member Reply With Quote
Take one from another car/bike must be a few about with them these days
micra_pete
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Registered: 23rd Apr 03
Location: West Yorkshire
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11th Apr 12 at 10:15   View Garage View User's Profile U2U Member Reply With Quote
I'm trying to find something similiar, its not a stock type part. Something near would be investigated if anyone can think of anything
LeeM
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Registered: 26th Sep 05
Location: Liverpool
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11th Apr 12 at 10:18   View User's Profile U2U Member Reply With Quote
whats it being used for?
DaveyLC
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Registered: 8th Oct 08
Location: Berkshire
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11th Apr 12 at 10:19   View User's Profile U2U Member Reply With Quote
What is it for?? exhaust back pressure?
micra_pete
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Registered: 23rd Apr 03
Location: West Yorkshire
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11th Apr 12 at 10:23   View Garage View User's Profile U2U Member Reply With Quote
No, inlet.

Its for the legacy, it uses an odd vacuum system and i want to bypass something, its under mild pressure so needs to be fairly solid.

I know what I want / need to do i'm just struggling to find a suitable part
micra_pete
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Registered: 23rd Apr 03
Location: West Yorkshire
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11th Apr 12 at 10:23   View Garage View User's Profile U2U Member Reply With Quote
Thanks for the replies btw.
DaveyLC
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Registered: 8th Oct 08
Location: Berkshire
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11th Apr 12 at 10:45   View User's Profile U2U Member Reply With Quote
There are vacum flap valves on a lot of modern cars in the exhaust, you could use one of those and control it with a vacum sensor and a vacum accumulator from a car with a variable vane turbo.
micra_pete
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Registered: 23rd Apr 03
Location: West Yorkshire
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11th Apr 12 at 10:47   View Garage View User's Profile U2U Member Reply With Quote
I have a few of those Dave for other things , it needs not to be controlled. Its a passive one way valve that needs good flow
The one pictured is almost perfect but would be very overpriced for my needs.
Bart
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Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
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11th Apr 12 at 11:01   View User's Profile U2U Member Reply With Quote
Sounds like your looking for a simple non return valve?

Google Search
micra_pete
Premium Member

Registered: 23rd Apr 03
Location: West Yorkshire
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11th Apr 12 at 11:05   View Garage View User's Profile U2U Member Reply With Quote
Bart love,

I have of course done that, I've spent three days searching, and that one pictured is the closest. It needs to be sturdy and ideally adjust with flow.

Thanks to everyone for your help though, I think i'll bite the bullet at get the one above.
DaveyLC
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Registered: 8th Oct 08
Location: Berkshire
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11th Apr 12 at 13:59   View User's Profile U2U Member Reply With Quote
You're not trying to fit a dump valve to a diesel turbo are you?
micra_pete
Premium Member

Registered: 23rd Apr 03
Location: West Yorkshire
User status: Offline
11th Apr 12 at 14:21   View Garage View User's Profile U2U Member Reply With Quote
Yes



No not really Dave, I have a legacy GTB, i'm making some changes to how the turbo change-over system works

 
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