We know total safety is important to you and protecting your people in an HF-Alky service is priority one! This is why we have designed the Change-HF™. This gasket is the superior choice in HF-Alky service. The Change-HF™ protects and outperforms every other HF-Alky gasket on the market.
> Flexibility of a proven spiral wound, low seating stress of a kammpro
> Graphite filled like a spiral wound, graphite faced like a kammpro
> Sigma PTFE inner ring barrier protects the flange from acid corrosion and also fills any existing corrosion damage
> Unique wire profile stores more elastic energy to create better dynamic performance and superior load retention in cyclic applications
> Excellent recovery (tested with 34% recovery @ 18K PSI [124 MPa], 30% compression)
> No spring washers needed, no re-torque required*
> Cycle over & over, and maintain sealability