# Lens-ring-gaskets-01

- By: CEphoto, Uwe Aranas
- Date: 2015-11-19
- Classification: Photograph
- Museum: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Lens-ring-gaskets-01.jpg)
- Rights: [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0)
- Picture: https://invisiblenetwork.ai/thumbs/commons/thumb/4/42/Lens-ring-gaskets-01.jpg/1920px-Lens-ring-gaskets-01.jpg
- Who can see it: Kids profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

A set of lens ring gaskets (lens shaped joint rings) for high pressure technologie. From left to right

BASF lens ring gasket, Steel 30CrNiMo8 (steel number 1.6580), nominal pressure 3600 bar, nominal diameter (i.d.) 50 mm, weight 4170 g

BASF lens ring gasket, Steel 30CrNiMo8 (steel number 1.6580), nominal pressure 3600 bar, nominal diameter (i.d.) 25 mm, weight 266 g

BASF lens ring gasket, Steel 20CrMoV13-5 (steel number 1.7779), nominal pressure 1600 bar, nominal diameter (i.d.) 10 mm, weight 32 g