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Low-pressure Bursting Disks

Low-Pressure Rupture Disks

The ZOOK Z-VAC and Z-POS Series are a range of bi-directional rupture disk and holder assemblies designed to relieve between 1-30” WC in one direction and 2-150 psi in the other direction uniquely protecting processing, fermentation, storage tanks and low strength vessels from vacuum implosion or over-pressure failure in a single device. Both designs relieve ultra-low pressure settings. The Z-VAC allows ultra-low pressure relief in the vacuum direction starting at 1” (25 mm) of water column differential and features user friendly replaceable knife blades to ensure optimum performance. The Z-POS allows ultra-low pressure relief in the positive direction starting at 1” (25mm) of water column differential.

Product Description

Rupture Disk Features

Highly accurate, ultra-low burst pressures starting at 1” (25 mm) water column • Dual-acting design, with laser cut metal top section and girdle (when ordered in 316SS)
Sizes 2” to 12” / 50 mm to 300 mm
Standard 316SS girdle for full range of vacuum pressures ensures clean opening of seal at specified pressure
Burst ratings from 1” (25 mm) of water column to 150 psig (10.34 barg)
Temperature ratings to 500˚F (260˚C)
Permanently attached 3D stainless steel tag shows positive and vacuum flow directions
Optional integral burst indication

Sanitary Fitting Disks

Sanitary fitting holders are available to allow direct connection to systems utilising ferrule connections. For more information on our ProVAC / ProPOS sanitary disks, contact a ZOOK representative.

BI Integral Sensor Available

The BI Series offers a simple and effective means of remote monitoring of the disk.

The BI is attached to the atmospheric side of the Teflon seal protecting it from the process.
Provides signal indication instantly upon rupture of the disk