Which color of Gylon is suitable for 35% hydrochloric acid piping

[562350]

Want to use blue gylon but not sure if it is good enough.

 

[JStephen]

Try calling your local gasket supplier, for one thing.

I don't know about the alternatives, but we had stick shock last time we bought any blue gylon- stuff was expensive.

 

[Pulpboy]

For 10% to 93 % concentrations not to exceed 175 deg f we use Garlock "Gylon" 3504 which is blue.

I agree with Jstephen though just phone your gasket manufacturer if in doubt.

As a side note make sure you use safety shields on the flange joints - expecially in high traffic areas to prevent spraying.

 

[tothepoint]

Gylon 3500 (Fawn) and 3504 (Blue) are both compatible. Neither one will seal well with plastic, or PTFE lined flanges. If you have non-metallic or lined flanges, you may want to look at an expanded PTFE material like GORE-TEX or Inertex. No worry with compatibility with these 100% ePTFE materials.