'O' ring size? - where can I find?

[anonymous]

What is the correct size 'O' ring for sealing the WTC-3 (3 inch outside diameter)? Is it trial and error, or is there a specific size known and commonly used?

Ace hardware has one that seems close....Stock # 4203Y51
2 7/8" x 2 1/2" x 3/16".

Is this it?

Thank you,

Steve Reichmuth

[tom spettel]

Steve I went to Rocket

Steve I went to Rocket Seals here in denver today and found out that there are many industry standards!! as far as seals and O-rings are concerned...
I have a phone number for you
Parker 606-269-2351
standads catlog
ORD-5700
this should get you started..
Tom
P.S. Parker also makes some great O-ring grease to.

[robse]

Hi, fellars..

Ehm.... "O-ring grease"? Would

Hi, fellars..

Ehm.... "O-ring grease"? Would it be OK to use Vaseline, or some other non-oil based stuff (silicone?), or is it vital to the degree of water proofness that "O-ring grease" is used?

[tmsmalley]

Vaseline is petroleum based which

Vaseline is petroleum based which will speed the degradation of rubber, as will oil. You are better off using silicone grease available at hardware or plumbing shops - also scuba diving suppiers shops sell it for lubricating <GASP> O-rings!