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DuplexGraphite Rupture Disk

The DUPLEX Type Graphite Disk is the best choice for applications involving highly oxidizing agents and halogens.

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ASME (UD) and PED (CE) compliance available

Features
Specifications
Installation
Datasheets & Brochures

The best choice for applications involving highly oxidizing agents and halogens
Disks extend corrosion resistance by utilizing a liner on the flat surface of the disk that contacts the process media
Disks are capable of resisting virtually any corrosive except elemental free fluorine
Available in nominal sizes 1/2” (15 mm) thru 24” (600 mm) diameters
Designed to fit industry standard flanges ASME B16.5, ISO and JIS
Burst ratings 0.50 psig (0.03 barg) to 1000 psig (68.95 barg) or higher
0% manufacturing range
Operating pressures to 90% of the disk’s marked burst pressure. Contact ZOOK for operating ratio for burst pressures below 40 psig (2.76 barg)
Temperature ratings –290°F to +700°F (–143°C to +371°C) Maximum temperature rating without insulation is 430°F (221°C) or 700°F (371°C) with insulation. Contact ZOOK for higher temperature ratings. The specified temperature shall be at the disk location at the time when the disk is expected to rupture
External type vacuum supports are available for vacuum service (Contact ZOOK when vacuum is present)
All flange group 2 disks are armored
Liners available: PTFE (Standard), PFA and FEP. Contact ZOOK for additional liner materials

Duplex Installation Guide
Duplex Installation Guide (Spanish)

Graphite Brochure
Duplex Datasheet
Large Disk Packaging

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