The TWO-WAY Type Graphite Disk is dual rated to protect against two different pressures in opposite directions.
- Applications include protection of storage tanks against both excess vacuum and overpressure when single vessel entry is required
- Designed to fit ASME B16.5, PN and JIS Flange Classes. Contact ZOOK for Class 300 Flange requirements
- Burst Ratings of 0.25 to 1,000 psig
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