Mini Ball or Poppet Valve?

[nomaam22]

Hello:

I am looking for a miniature ball or poppet style valve that can be manually depressed. I am looking for cracking pressures under .1mbar so I can not think of any other solution. I have found duckbill valves can not offer the cracking pressure needed within the size range for my project.

I am trying to find a prefabricated poppet or ball valve assembly that would be no larger than about a 15mm diameter with a low top profile. Right now the only option that I have seen would be to build my own housing for the spring etc., which I would prefer to avoid as I would need many units.

Has anyone seen a product similar to what I have described? The ball or poppet would be manually depressed causing a gap between the sphere and the surface material allowing air to escape or enter.

Thanks.

 

[cpretty]

nomaam22,

Have a bit of a look into injection molding accessories from the likes of DME - see link

https://na.dmecompany.com/Catalog/C...P8=|33;SRP8=|192;SRP8=MC039|&CatalogParent=33

These are common for breaking vacuum in injection moldings, and looks like it could be adapted for your needs.

Cheers,
Craig