Circular Pressure Window Calculator
Estimate indicative thickness for flat circular optical windows under pressure differential for subsea, vacuum and custom applications.
Why Use a Circular Pressure Window?
Circular windows are typically preferred for high pressure applications due to more even stress distribution and improved mechanical performance.
This allows:
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Higher pressure resistance
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Reduced required thickness
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More predictable behaviour under load
Indicative thickness only
The calculated value is intended as an initial estimate and should not be treated as a final design approval.
Edge support affects performance
The way a circular pressure window is mounted can significantly affect stress distribution and required thickness. A clamped window will usually behave differently from a simply supported window.
Final design may require more thickness
Manufacturing tolerances, proof testing, coating requirements, thermal effects, edge quality and safety margins can all increase the final recommended thickness.
Typical enquiries we receive:
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Subsea camera housings
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Pressure vessels and sealed systems
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Custom optical windows for harsh environments
Common Materials for Circular Pressure Windows
Material selection depends on optical transmission, mechanical strength, environmental conditions and coating requirements.
Circular pressure windows are commonly used in subsea and high pressure applications where strength and reliability are critical.
Frequently Asked Questions
Calculator results are indicative only and do not constitute certified design approval. Final suitability depends on mechanical design, material data, mounting method, safety requirements and application environment.