About Us

SEDCO is a manufacturing company, located in south eastern Michigan, in the community of Adrian. Founded in 1956, SEDCO currently employs over 40 dedicated personnel. Manufacturing is housed in a 36,000 sq. ft. facility, with Sales and Engineering located in an adjacent office building.

SEDCO has been assessed and conforms to: IATF 16949:2016 – FIRST EDITION.

We primarily focus on the design and manufacture of Pressure Relief Valves for two specific market applications:

1. Hermetic Compressors and Automotive Air Conditioning Systems
2. Pneumatic and Hydraulic Systems for Braking, Steering and other Vehicle Systems

We also manufacture valves for numerous pneumatic and hydraulic system applications. These can be safety critical components, or valves designed to improve system performance or longevity.