Menu Dec 01, 2021 Modco™ closures have re-joined the NOV trusted portfolio of closures. NOV has always been the designer and owner of this trademark. Now, all Modco-related inquiries should be directed to NOV or a preferred distributor. Modco closures join NOV’s industry-leading Yale™ and Sentry™ closure brands. Known as the standard for quality and reliability, NOV closures provide access to closed systems for pipeline and pressure vessel inspection. Starting with Yale closures in 1958, our product suite has evolved from the original threaded Figure 500 closure providing operating ease and safety with its rugged design features to the Sentry closure with its simple locking ring, enabling quick-opening and fail-safe capabilities. Contact us at pft@nov.com for assistance with selecting the best closure for your application. Learn more about our closures Yale Originating with the Huber brand and expanding into what is now Yale, our brand reaches all across m… Read more Sentry Our Sentry brand closures are a proven solution for a variety of pipeline needs. Read more Contact Us Also of Interest Document Library Success Stories Sustainability About Us Products and Services Careers Investors Privacy Policy Terms of Use Policies Trust Center Media Kit © 2021 NOV Inc. All Rights Reserved. This website would like to use cookies to store information on your computer which will help to customize your interactions with us and provide you with a better browser experience. You may delete and block cookies from this site, but parts of the site may not function as a result. More information about cookies and your choice can be found in our Privacy Policy. To accept cookies from this site, please click the ‘I Accept’ button below.