Our line of VCR-style face seal fittings are typically utilized within UHP gas delivery systems. But what exactly is a UHP gas?
UHP Gases – The Facts
UHP gases have exceptionally low levels of contaminants and impurities. UHP gases are produced, handled, and stored with stringent controls, preventing contamination from particles, moisture, hydrocarbons, and other substances.
Achieving Optimal Purity Levels
UHP gases achieve purity levels upwards of 99.99%. Reaching purity levels this high may require different methods of purification and processing, including:
- Cryogenic distillation – Separates gases based on their boiling points, compressing and cooling the gas to cryogenic temperatures, which causes the gases to liquefy.
- Adsorption – Molecules, atoms, or ions from the gas adhere to the surface of a solid or liquid. This purification method is primarily used to remove hydrocarbons.
- Membrane separation – Utilizes a semi-permeable membrane to separate substances selectively. There are various types of membrane separation processes, including:
- Microfiltration
- Ultrafiltration
- Nanofiltration
- Reverse osmosis
- Gas separation membranes
- Getter purification – Utilizing getter materials like zirconium or titanium alloys, this method causes a chemical reaction that traps impurities.
Maintaining Optimal Purity Levels
Our VCR-style face seal fittings help maintain the integrity of UHP gases for many processes and applications. Contact us today to learn firsthand how our high-quality solutions can benefit you.