Circle Seal PR01 Series valve
Circle Seal Controls (now CIRCOR Aerospace) is a leading manufacturer of fluid control products for aerospace and industrial applications.
This Circle Seal PR01 Series pressure regulator features a soft seat that is suitable for dead-end service, a tight shutoff, and single hole panel mounting, all in a miniature size. It is shown with optional pressure gauges. This was taken during my time at Circle Seal for catalogs and website.