| Name |
Description |
| Inner diameter |
Nominal inner diameter of bellows |
| Outer diameter |
Nominal outer diameter of bellows |
| Plate thickness |
Thickness of bellows material |
| Number of plies |
Number of plies of material that forms bellows |
| Span |
Length in a radial direction of bellows: (outer diameter-inner diameter)/2 |
| Effective diameter |
Diameter used for surface pressure calculation: (outer diameter + inner diameter)/2 |
| Pitch |
Interval between threads |
| Bellows length |
Product length excluding parts for fitting connection (end fittings, etc.) |
| End fitting |
Y-shape or corrugated-shape fitting for fitting connection |
| End pipe length |
Straight length of the end pipe portion for fitting connection |
| Overall length |
Bellows length + fitting for fitting connection × 2 |
| Cutting diameter |
Dimensions for welding on the outer diameter side of formed bellows |
| Pipe end diameter |
Dimensions for welding on the inner diameter side of formed bellows |
| Bead (diameter) |
Molten bead of welded bellows (its diameter) |
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Metal bellows
Vacuum valves
Vacuum piping parts
Vacuum chamber
Feedthroughs
Vacuum Pump
