حلقات O من Viton FKM 0.139 بوصة CS × 1.359 بوصة ID | AS568-220 | داش 220 | صلابة 90 (80/عبوة)

Replaced the worn seals on my hydraulic manifold and these sat perfectly in the grooves without any fuss. The 90 durometer hardness feels reassuringly stiff, and I'm glad they handle up to 400°F since things get hot fast in that room.

I needed some high-temp seals for a steam valve and these Viton rings handled the 350°F service without any softening. The 90 durometer feels noticeably stiffer than standard Buna-N, which actually works better in my setup.

Replaced the worn seals on a steam line that sees 350°F daily, and these Viton rings have held up flawlessly for three months now. The 90 durometer hardness makes them stiff enough to seat firmly without deforming, and the pack of 80 gives me spares for the next few rebuilds.