Cryo-Ring ™ Seals From Vulcan Seals.
Vulcan Seals Cryo-Ring™ is the perfect low-cost 'O'-ring sealing solution for cryogenic applications, where low temperature demands are required. Liquid Oxygen or Hydrogen are ideal applications for a Cryo-Ring™ or Cryogenic seals due to it’s lower temperature operating limit of -250°C (-418°F) compared to an encapsulated Silicone core limited to -60°C (-75°F).
With a 302 Stainless Steel spiral wound spring, encapsulated with either an FEP or PFA, a Cryo-Ring™ or Cryogenic seal is used within a wide variety of industries such as transportation, food, pharmaceutical and chemical.
• Widest temperature encapsulated sealing 'O'-ring
• No cold flow problems due to the Stainless Steel elastomer core, unlike solid PTFE ring
• Virtually any cross-section and diameter size or shape of seals can be produced to meet your application
• Full traceability through production and multi-level automated inspection to ensure high product quality and reliability
• Guaranteed stock of materials for all BS ISO 3601-1/AS 568 sizes, with short lead times
Material Options
• Encapsulation: FEP / PFA
• Inner core: 302 Stainless Steel spring
Temperature Range
• FEP = -250°C to +205°C (-418°F to +400°F)
• PFA = -250°C to +260°C (-418°F to +500°F)
Venting
For applications where pressure demands exceed 100 bar, ventilation holes are to be placed within the encapsulation to prevent encapsulation rupture.