Flexible Graphite. Tough Enough to be a Navy Seal.

Flexible Graphite. Tough Enough to be a Navy Seal.

About 25 years ago, we engineered the first of many graphite pressure seals for nuclear service.  The US Navy felt that the silver-coated metal seals they had been using were far too heavy.  And, and the silver coating, which provided a secure seal on imperfect valve...
Out of Round? No Problem!

Out of Round? No Problem!

A valve was over-pressurized in a west coast nuclear power plant.  It led to an extreme condition called out-of-round in the pressure seal cavity.  They called the manufacturer but there was no way to machine the cavity back to accepting a metal seal. And, it would...