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RB-90® Reverse Buckling Disks

RB-90® Reverse Buckling Disks

RB-90® Reverse Buckling Disks

Product catalog summary
Overview: The document provides detailed specifications and features of the RB-90TM Rupture Disk and RB-7R Quik-Sert Safety Head, designed for overpressure protection in gas/vapor applications.
RB-90TM Rupture Disk:
  • Reverse buckling, compression-loaded design.
  • Activates by snapping against stainless steel blades, cutting the disk into four petals.
  • Resistant to back pressure and full vacuum at all burst pressures.
  • Available in various materials including Aluminum, Nickel alloy, Monel®, Inconel®, 316 stainless steel, and Hastelloy® C-276.
  • Temperature resistance varies by material, with maximums ranging from 250°F (121°C) to 1100°F (593°C).
  • Manufacturing Design Range (MDR) options: 0%, -5%, and -10%.
  • Marked burst pressure tolerance: <40 psig (+2 psig), >40 psig (+5%).
RB-7R Safety Head:
  • Preassembled insert type safety head with stainless steel knife blades.
  • Available in ring joint, raised face, and tongue and groove flange facings.
  • Compatible with RB-90 rupture disks.
Specifications:
  • Disk sizes range from 1 to 42 inches (25 to 1070 mm).
  • Pressure ratings vary by material and size, with specific minimum and maximum values provided for each combination.
  • Assembly height and outside diameter dimensions are specified for different ANSI standards (150#, 300#, 600#).
Contact Information:
  • BS&B Safety Systems, L.L.C., Tulsa, OK, USA.
  • BS&B Safety Systems Ltd., Limerick, Ireland.
  • Website: bsbsystems.com for up-to-date information.
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Catalog excerpts

RB-90® Reverse Buckling Disks-1

Type RB-90TM Rupture Disk Type RB-7R Quik-Sert Safety Head

 Open the catalog to page 1
RB-90® Reverse Buckling Disks-2

Reverse Buckling Disk The RB-90 rupture disk provides overpressure protection by reversing and snapping against precision stainless steel blades located in the safety head, cutting the disk into four distinct petals. The RB-90 disk also withstands back pressure and is resistant to full vacuum at all burst pressures. The RB-90 is a reverse buckling, compression loaded rupture disk and is available in a wide variety of burst pressures Its design is for gas / vapor applications only. Marked burst pressure Burst tolerance Maximum Temperature Unlined disks Fluoropolymer lined disks Stainless steel...

 Open the catalog to page 2
RB-90® Reverse Buckling Disks-3

RB-90TM Disk Specifications Minimum / Maximum Pressure Rating at 72°F (22°C) Disk size in Aluminum psig Inconel® alloy 600 psig

 Open the catalog to page 3
RB-90® Reverse Buckling Disks-4

RB-7R Safety Head Specifications 150# ANSI Assembly height dimensions Nom. pipe and disk size Outside diameter Products, specifications and all data in this literature are subject to change without notice. Questions regarding product selection and specifications for specific applications should be directed to BS&B Safety Systems, L.L.C. or BS&B Safety Systems Ltd. All sales are subject to BS&B Safety Systems, L.L.C. or BS&B Safety Systems Ltd. standard terms and conditions of sale. Nothing herein should be construed as a warranty of merchantability or fitness for a particular purpose. Limerick,...

 Open the catalog to page 4

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.