A new strategy to improve the stem sealing[R]
A graphite stem packing is composed ususally by dieformed flexible graphite ringsand die-formed braided packing rings in different shape and combinations
Test bench development for Rapid Gas Decompression evaluation of valve elastomer seals[R]
• O-rings in Oil and Gas producing facilities are subjected to extreme pressure andtemperature.• Minute imperfections or faults in the O-rings allow gasses to permeate into the seals.• In time, …
SEMI-DYNAMIC METAL SEALING Base theory and examples of valve applications
Common use of metal seals in the industry
Semi-dynamic sealing applications
Definition
Specificities on the assembly design
2 examples:
Quarter-turn metal stem sealing
Shut-off sealing for Triple Offset Butterfly Valves
Flexible Graphite Gaskets for Hydrogen Applications
Hydrogen production, properties, and use
Hydrogen sealing: Difficulties and solutions
Optimum graphite gaskets for hydrogen sealing
Additive Manufacturing: Re-shaping the Oil & Gas industry[R]
Case Study: Re-design, printing and testing of butterfly valve disc.
Ball valves for extreme high temperature service: design and coating validation by means of bench sessions and performance tests[R]
Higher and higher performances required in the Oil&Gas field High temperature, thermal cycles, high pressures Importance of durability and effectiveness