Capsule Elevator,Scenic Passenger Lift Elevator,Luxurious Capsule Elevator,Glass Capsule Elevator APSL ELEVATOR TECHNOLOGY(SUZHOU) CO.,LTD. , https://www.fujiapsl.com
Solving The Cold Hard Truth of Cryogenic Gasket Failures
Cryogenic environments present some of the toughest challenges for any equipment, and gaskets are no exception. When temperatures swing between room temperature and cryogenic levels, gaskets often face issues due to expansion and contraction. This newsletter aims to address the specific problems gaskets encounter in such conditions.
**How Do Cryogenic Temperatures Affect Gaskets?**
Cryogenic temperatures reduce the ductility of materials like metals, semi-metals, and polymers while increasing their hardness and brittleness. This reduction in ductility can lead to breakage, improper sealing, and ultimately, failure.
**What Happens to Spiral Wound or Camprofile Gaskets in Cryogenic Conditions?**
Traditional metallic gaskets like spiral wound or camprofile types aren’t ideally suited for cryogenic applications. At these temperatures, they lose flexibility due to reduced ductility and increased hardness, leading to seal integrity issues over time.
**Why Are Revoseal Gaskets Superior in Cryogenic Environments?**
Extreme Bolt's Revoseal gaskets are engineered specifically to handle the demands of cryogenic service. Their material composition and unique design allow them to function effectively even under extreme cold. Designed to act like a spring, Revoseal gaskets maintain their flexural properties, responding dynamically to joint expansions and contractions. Constructed from materials like nickel alloys, they enhance ductility, ensuring reliable performance. Additionally, the metal-to-metal seal combined with a PTFE/graphite soft seal requires less sealing force compared to conventional options like spiral wound gaskets.
**How Long Can Revoseal Gaskets Last Compared to Other Gaskets?**
Revoseal gaskets significantly outlast traditional all-metal or spiral wound gaskets in stable cryogenic settings. They offer an order of magnitude lower leak rate compared to camprofile or spiral wound gaskets. Even in fluctuating conditions involving pressure, vacuum, or temperature changes, Revoseal gaskets maintain consistent performance where standard metallic gaskets might fail due to cracking or inadequate compensation for expansion and contraction.
**Revoseal Case Study: Anorganic Chemical Production**
In the production of polychlorinated fluoridic hydrocarbonates—commonly used as refrigerants and pharmaceutical propellants—the process involves media such as HF, CH, oxygen, and R134a/R133a at temperatures ranging from -200°C to 430°C, with pressures varying from vacuum to 160 bar. Using Revoseal ECO+ gaskets extended the gasket life to five years, compared to the three to nine months typical with traditional spiral wound gaskets. This improvement allowed the company to meet its annual maintenance schedule without unexpected outages.
---
With advances in material science and engineering, solutions like Revoseal gaskets continue to redefine what’s possible in challenging industrial environments.