Anyone have a source for a Non Stop Aviation oil cooler butterfly valve?

[cactusman]

Website appears to be shut down.

 

[bjdecker]

Try this instead --
https://www.tcwtech.com/product/butterfly-valve-for-oil-coolers-4-inch/ or

Butterfly Valve for Oil Coolers (3 inch) - TCW Technologies

www.tcwtech.com

 

[Carl Froehlich]

ACS also carries it.
Carl

 

[wirejock]

Try this instead --
https://www.tcwtech.com/product/butterfly-valve-for-oil-coolers-4-inch/ or

Butterfly Valve for Oil Coolers (3 inch) - TCW Technologies

www.tcwtech.com

That's what I used but I took it apart and installed it into a small flange attached to the #4 baffle. It saved a bunch of space.
This flange

4" Flanged Duct

store.vansaircraft.com