ZOOK is committed to finding pressure relief solutions for our customers that maximize our customers’ productivity and performance while keeping their people safe. ZOOK is a global market leader with over 90 years of manufacturing expertise of high quality metal & graphite rupture disks and other pressure relief products. ZOOK has global locations in the USA, United Kingdom, Canada and Malaysia, with state-of-the-art manufacturing facilities in Canada and the USA.

Zook Website

Our products are sold in 65+ countries and to-date have over 5,000 customers buying our products worldwide.

We are dedicated to investing heavily in the latest technology and production to stay competitive in the marketplace, and are able to offer comprehensive solutions to the selection and sizing of products best suited for each customer application.

Our graphite division is the first and largest graphite company in the world committed to manufacturing quality impervious graphite rupture disks through product innovations and superior service. We were the first graphite rupture disk manufacturer to earn the ASME Code UD symbol stamp and certificate of authorization.


  • Accessories
  • Burst Sensors and Indicators
  • Custom Solutions
  • Explosion Vents
  • Extrusion Burst Plugs
  • Forward Acting Rupture Disks
  • Graphite Rupture Disks
  • Holders
  • Reverse Acting Rupture Disks
  • Sanitary Rupture Disks
  • Transportation/Railcar Rupture Disks
  • Ultra-Low & Bi-Directional Disks