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BS&B SAFETY SYSTEMS, L.L.C.
SKr™ Rupture Disk (Bursting Disc)

SKr™ Rupture Disk (Bursting Disc)

Product catalog summary

Introduction to SKR Rupture Disk: The SKR Rupture Disk is an all-purpose safety device designed for controlled pressure relief in various service conditions. It utilizes SAF™ Technology (Structural Apex Forming) to achieve low burst pressures with excellent opening characteristics, suitable for both gas and liquid services.

Specifications: The SKR disk features a reverse buckling design with a circular score line for precise opening at marked burst pressures. It includes an energy-absorbing hinge to prevent fragmentation and ensure superior flow performance. The disk is available in various materials, including 316SS, Nickel Alloy 200, Monel Alloy 400, Inconel Alloy 600, Hastelloy Alloy 276, Titanium, and Tantalum, to suit different chemical resistances.

Pressure Ratings and Tolerances: The marked burst pressure is determined within a manufacturing design range, with tolerances of ±2 psig for pressures ≤40 psig and ±5% for pressures >40 psig. Optional manufacturing design ranges of -5% and -10% are available.

Installation and Compatibility: The SKR disk can be installed in SRB-7RS™ Safety Heads, allowing for pre-torque application and easy maintenance. It is compatible with other rupture disks in the STA-SAF® System, facilitating upgrades to SKR technology.

Flow Performance and KR Values: The SKR disk offers superior flow performance with specific KR values for gas and liquid services. Minimum Net Flow Area (MNFA) is provided for ASME sizing calculations.

Material and Temperature Specifications: The disk materials have specific temperature limits, with Nickel Alloy 200 up to 750°F, Monel Alloy 400 up to 900°F, and Inconel Alloy 600 up to 1100°F, among others. Liners such as Teflon® are available for additional protection.

Compliance and Certification: The SKR disk is manufactured in compliance with international standards, including ASME, CEN EN ISO 4126-2, BS 2915, ISO 6718, TUV AD Merkblatt A1, SVTI, and Stoomwezen. It is ISO 9001 certified.

Contact Information: For further inquiries and product selection assistance, contact BS&B Safety Systems, Inc. in the USA or BS&B Safety Systems Ltd. in Ireland and the UK.

Catalog excerpts

Catalog 77-4003, Section D BS&B SAFETY SYSTEMS, L.L.C. BS&B SAFETY SYSTEMS LTD Visit our website at www.bsbsystems.com or www.bsb.ie for the most complete, up-to-date information. SKR RUPTURE DISK The All-Purpose Rupture Disk Introducing SAF™ Technology

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SKR ™ DISK SPECIFICATIONS Min/Max Pressure Rating at 72°F (22°C) PSIG (Bar) Design The SKR™ reverse buckling disk is designed with a circular score line located at the edge of the domed area on the downstream side of the disk. At the marked burst pressure, the disk’s dome reverses and opens by shearing around the circular score line. The SKR™ uses SAF™ technology (Structural Apex Forming) enabling very low burst pressures to be achieved with excellent opening characteristics. An integral energyabsorbing hinge located on the downstream side of the disk enables the SKR™ to perform in gas or liquid...

Open the catalog to page 2

Installation in SRB-7RS™ Safety Head The SKR™disk installed in an SRB-7RS™ Safety Head permits the correct torque to be applied in the workshop before installation into the process. The asymmetric locating pins ensure centering and orientation of the disk within the Safety Head. The performance-proven metal-to-metal ‘bite type’ seal in the Safety Head (2”/50mm size and above) assures a leak tight assembly.When installed properly into the SRB-7RS™ Safety Head, the assembly can be removed, inspected, cleaned carefully then reinstalled without replacing the disk as the pretorque capscrews maintain...

Open the catalog to page 3

SKr™ Rupture Disk (Bursting Disc)

SKr™ Rupture Disk (Bursting Disc)

Catalog excerpts

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