L3-DST-SEAL-FLEX
ESSENTIAL
ENVIRONMENTAL
Level 3 · hardware
Flexible Membrane Seals
Metal-Reinforced Polymer Flexible Bellows for Large Motion
Metal-reinforced polymer flexible bellows providing dust seal across large-motion joints (deployable structures, articulating shielding panels).
Purpose
Metal-reinforced polymer flexible bellows providing dust seal across large-motion joints (deployable structures, articulating shielding panels).
Context
Child of L2-DST-SEAL within the Lunar Ark system
Principles
- ▸Metal-reinforced polymer (Kapton/PEEK + Inconel wire) bellows
- ▸Multi-convolution design accommodates large motion
- ▸Dust-tight without elastomer
- ▸Replaceable when polymer degrades (~25 years)
- ▸Used on deployable structures, robotic ramps
Typical implementations
- ▸Aerospace deployable structure bellows
- ▸Industrial expansion joints
- ▸Robotic accordion seals
Lunar considerations
- ▸Polymer aging over decades — periodic replacement
- ▸Long-life thermal range coverage
- ▸Robotic-replaceable design
Specifications
Functional
| primary function | Metal-reinforced polymer flexible bellows providing dust seal across large-motion joints (deployable structures, articulating shielding panels). |
| motion range mm | 200 |
| replacement interval years | 25 |
Physical
| mass kg | 5 |
| materials | Kapton / PEEK bellows, Inconel reinforcement wire |
| vacuum compatibility | True |
Operational
| power consumption w | 0 |
| thermal range c | -40, 70 |
| lifetime years | 25 |
| mtbf hours | 100000 |
Interfaces
Provides
- Dust seal on deployable joints
- Sealed maintenance access ports
Requires
- Replacement bellows production
- Replacement service
Cite this entry
Lunar Ark Codex. "Flexible Membrane Seals" (L3-DST-SEAL-FLEX). Retrieved 10 September 2026, from https://lunarark.com/entry/L3-DST-SEAL-FLEX
Licensed CC-BY-SA 4.0. You may reuse and adapt this entry with attribution, under the same licence.