During the last couple years, valve repair and maintenance companies have switched to high-density Graphite pressure seals. Here’s why.

Every day, more and more repair companies are switching from metal to a VSG Graphite pressure seal. Why? When it comes to power plant maintenance, a graphite pressure seal is easier to replace and seals better than metal, hands-down.

When you replace one metal seal with another, it’s hard to remove, requires a lot of machining to get the bonnet surfaces up-to-speed and often takes a bunch of torque just to get it to seal.

Graphite is different.

The Graphite VSG won’t fuse to valve components like metal. It just lifts out. And, in a maintenance time-study, you can save up to 75% by switching to graphite.

It’s compressible and conformable so there’s rarely any machining. It can work in oversize, out-of-round, steam cut and pitted bonnet cavities.

And, in a world where valves cycle in power plants many times daily, graphite is so resilient it seals every time and rebounds after every pressure cycle.

Graphite is on its way to becoming the pressure seal that outperforms metal for power plant maintenance and repair. Just in the last year, sales of our VSG graphite pressure seal are up by 30%. So, the next time you replace a pressure seal, think Graphite! And think EGC!