Do splicing o-ring's affect properties.
Do splicing o-ring's affect properties.
(OP)
I need to create a 41" o-ring that will seal a vacuum plenum on an intake manifold. So it will need to be gasoline resistant and able to withstand 250 deg Fahrenheit. Will splicing a viton o-ring affect the properties of the o-ring material.





RE: Do splicing o-ring's affect properties.
In a static application splicing will be ok. I have seen spliced o-rings in high pressure H2 service (less then 350F) work fine, but it is/was not preferred.
Your may find o-ring.info helpfull.
RE: Do splicing o-ring's affect properties.
-- what I'm trying to point out is that how well the splice holds might depend on how you splice, and what you use to splice with.
RE: Do splicing o-ring's affect properties.
regards
John
RE: Do splicing o-ring's affect properties.
Again, as stated above, it would not be the prefered method, but should work for your applicaiton.
RE: Do splicing o-ring's affect properties.
Two best materials are NBR (nitrile) or FKM
Super glue is only rates for water. Nothing over 200F and then with hydrocarbons, don't count on it.
Splicing requires human craftsmanship, if having to repeat, likely to fail occasionally.
Could it be changed to a flat gasket with a tapered dovetail cut?
Loctite 510 bedding compound is good in many hydrocarbons.
Lastly, look for a ball and socket o-ring. They are pricey, but available. See Chesterton
Hope it helps or you already have the problem solved.
Cheers,
MECOMAN
RE: Do splicing o-ring's affect properties.
RE: Do splicing o-ring's affect properties.
I have spliced many sizes and materials of o-rings,for water, hydraulic systems and hydro carbons using a Loctite glue.
It is my experience that the most important factor is to clean the intended joint using clear alcohol,by dipping the joint ends and shaking dry.
The use of a 45 degree cut gives a greater surface area and it helps if only a minimum of glue is applied.
Offshore Engineering&Design