Reverse engineering part w/ 99.99% pure silver component

[310toumad]

I'm reverse engineering a component that controls an electronic valve that regulates the amount of DEF going in exhaust of a diesel vehicle. One of the components is a ring that a materials lab verified is 99.99% pure silver with no other discernible constituents.

Not surprisingly all our vendors are no-quoting the part. Has anyone ever dealt with manufacturing a pure metal like this? Where would you even purchase pure silver to begin with?

 

[drawoh]

310toumad,

Do you understand why the ring is %100 silver? Electrical conductivity? Thermal conductivity? Pure silver is only somewhat better than pure copper.

Have your vendors told you why they won't quote the part? Silver is expensive. Are they trying to not shock you?

--
JHG

 

[IRstuff]

Does anyone know why it needs to be that pure?

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

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[EdStainless]

IF you need it find someone in your area that custom makes jewelry.
Silver is easy to work with.
Did you cut the part up? Are you sure that it isn't Cu with Ag platting?
Cu will not like DEF, so it would need to be protected.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

 

[IRstuff]

Most silver jewelry is sterling, which is typically in the low 90s.

Interestingly, this says that silver is unacceptable for handling DEF

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

faq731-376 forum1529 Entire Forum list

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[GregLocock]

ebay sells it. Buyer beware. Another source would be the suppliers for semi conductor foundries, or these guys

http://www.perthmintbullion.com/au/..._Bars_now_available_in_99_99_pure_silver.aspx

Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376

http://eng-tips.com/market.cfm?

 

[itsmoked]

Da Hunt Brothers!


(They are famous for trying to corner the silver market - unsuccessfully.)

Keith Cress
kcress -

http://www.flaminsystems.com

 

[sreid]

This might be some help.

https://en.wikipedia.org/wiki/Diesel_exhaust_fluid

 

[ProEpro]

If it is a silver plated sealing ring made from stainless or copper Swagelock and others sell them.