Why the external o ring

Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum

Help Support Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

JerD

Well-Known Member
Joined
Jun 29, 2008
Messages
168
Reaction score
0
Location
NW Indiana
Just got my "Bargain Fittings" parts for my new kettle. Why the additional O ring on the outside of the kettle?
 
Because the kettle is a cylinder and the washers are flat, you need a compressible seal on both sides.
 
Because the kettle is a cylinder and the washers are flat, you need a compressible seal on both sides.

I'd disagree. One o-ring on the inside is enough, thats how mine is all plumbed up with zero problems. An oring on the outside and inside actually allows the fitting to move more which may cause a leak to form sooner. The nut seals the threads and the o-ring and jam nut prevents liquid from leaking through the opening around the fitting. The internal pressure from the water column helps makes this seal even tighter.

Save the second one for a spare :)
 
Back
Top