Application notes
Valve questions in practice
EURAD’s application notes address recurring valve questions in practice: the physics, the failure mechanisms and the reasoning behind the right valve selection — per application. Topics covered include water hammer, capacity, air release and admission, cooling-water operation, high temperature, cryogenic, liquefied-gas and oxygen service, and valve replacement in existing installations.
5-offset (penta-offset) metal-seated butterfly valves
The penta-offset sealing principle: friction-free, bidirectional zero-leakage shut-off from cryogenic to high temperature.
Water hammer, air entrapment and valve selection in pressure pipelines
How pressure surges and air entrapment arise in pressure pipelines, and which check, air-release and air-admission choices protect the system.
Valves for high temperature and thermal cycling
Why it’s not temperature but cycling that’s the hard problem: expansion, sealing and fatigue across the cycles.
Valves for cryogenic and liquefied-gas applications: LNG, hydrogen and ammonia
Sealing and material behaviour at extremely low temperatures — LNG, hydrogen and ammonia.
Valves for oxygen service: ignition is the deciding factor
Why ignition safety governs the design: material choice, cleanliness and operating forces.
Valves in cooling-water systems
Corrosion, erosion and air management in cooling-water circuits, and the valve selection that keeps capacity up.
Valves in energy and infrastructure: replacement, documentation and custom solutions
Replacement and custom solutions in existing installations, with the documentation and certification the maintenance file requires.
