‘O’ Rings for Grainfather conical fermenter

[Polcho]

I was putting the dual valve tap for the conical fermenter together yesterday.

There are three o rings on the part that lifts.

The middle one is like a silicone rubber and the two outer ones are like a nylon hard plastic.

The two hard ones have broken, so can’t be used.

Since it didn’t appear to be an essential part, in terms of leakage, I decided to go ahead and make the wine.

However, I’m wondering if anybody knows why the two outer rings are hard plastic and the middle like rubber.

Also, does anybody have a link to buying spare o rings?

 

[gyurmaember]

That's meant to be cut, as in internal combustion engines, lube them well, amd don't worry. They send you 3 silicone one in the replacement seal kit, if you want to change them.

 

[Polcho]

Thanks, I didn’t realise.