ZOOK

zook rupture disks corporate logo

ZOOK is an industry-leading rupture disk manufacturer, offering both graphite and metal rupture disks prioritizing safety and reliability in your process. Rupture disks from ZOOK protect from overpressure incidents, minimize downtime, and improve both confidence and safety in your onsite applications. These tailored overpressure solutions from ZOOK ensure maximum safety while also enhancing application performance, protecting both your process and your people.

If you’re looking for reliable pressure relief for your industrial or municipal application, Cross Company can provide ZOOK rupture disks and other overpressure protection instrumentation.

RA4 Reverse Acting Disk

Metal Rupture Disks

mono zook graphite rupture disk

Graphite Rupture Disks

Featured ZOOK Products

Graphite Rupture Disks

  • Mono (Low to Medium Burst Ratings)
  • Inverted (medium to High Burst Ratings)

Metal Rupture Disks

  • RA Series (Reverse Acting Disks)
  • FA Series (Forward Acting Disks)
  • ZANITARY Series

At Cross, our team works directly with you to determine the right product for your application. This ensures your have a solution that works on day one. Our experts can assess your safety needs to determine the best options for overpressure protection.

Available In The Following Areas

With an extensive background in a variety of industries, Cross has relationships with a number of leading brands, including exclusive distributorships in some areas. We are proud to offer ZOOK in the following areas:

Videos

Latest ZOOK Resources, News, and Events

ZOOK 1
Cross partner, Valmet Flow Control, offers a complete range of limit switches and valve position monitors for precise, real-time position feedback across automated quarter-turn and linear discrete valve assemblies.
October 29, 2026

More information From ZOOK

zook rupture disks corporate logo

Interested in learning more? Contact a Cross team member today to discuss your application and see how we can help your operation!

See how our team can help improve efficiency, reduce risk, and raise quality in your process.

zook rupture disks corporate logo

Metal Rupture Disks

Graphite Rupture Disks

Contact our Team

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In the meantime, enjoy these fun facts…

Did you know… Cross Company is an ESOP (Employee Stock Ownership Plan). Our ESOP started in 1979 and as of 2006, we are 100% employee-owned! Learn more about our ESOP and how that benefits both team members and our customers.
Did you know... the precision measurement group at Cross was founded in 1939 by our current CEO's grandfather, Jim King. That's a whole lot of calibration!
Did you know... A fingerprint weighs about 50 micrograms. We know, we weighed it! The residue left from a finger can actually make a difference in weight results which is why we wear gloves when we calibrate weights. For reference, a sheet of paper is about 4.5 grams, that’s 4.5 million micrograms.
Did you know… Cross Company has grown significantly since our start in 1954. Over the years we've acquired 26 companies! Today, our five groups have expertise in everything from industrial automation to precision measurement, and industry knowledge going all the way back to 1939.