ZOOK is a global leader in the manufacturing of metal and graphite rupture disks and related over-pressure protection products. We are dedicated to becoming your single source for all your rupture disk needs. ZOOK Manufactures: - a full line of high-performance Metal Rupture Disks and Holders designed for fragmentation-resistance - a complete line of Graphite Rupture Disks - a complete line of flat, crowned, and insulated Vent Panels - rupture disk Alarm Sensors compatible with ZOOK or any other manufacturers type of rupture disks - a full line of standard"_ and custom Extruder Barrel assemblies