Huma

[Ranin]

To replace the huma regulator's o-ring, do they necessarily have to be viton? Or are the normal hardness of 70?

 

[addertooth]

Many O-Rings have similar mechanical characteristics. Viton has the advantage of being resistant to most petrochemicals. However, if there is not petrochemicals in the area where the regulator is used, other formulations, such as Butyl rings may provide excellent service.

https://www.gallagherseals.com/blog/your-guide-to-o-ring-materials/

 

[Ranin]

Ok