butterflyvalve
butterfly valve top:open valve bottom: closed valve Precision Graphics n.
1. A disk turning on a diametrical axis inside a pipe, used as a throttle valve or damper.
2. A valve composed of two semicircular plates hinged on a common spindle, used to permit flow in one direction only.

* * *


Universalium. 2010.

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”