Performance Features

  • Superior high pressure cycle resistance / life
  • Circular Scored Opening
  • Pressure Cycle Resistant
  • Disk sizes: 1/4” (6mm), 3/8” (9mm), 1/2” (12mm) and 3/4” (19mm)
  • Resists full vacuum
  • 90% operating ratio
  • Standard burst tolerance ±5%
  • Gas or liquid service capability (specify)
  • Back pressure resistance always equal to burst rating; can be manipulated between 1.0 and 1.5 rating
  • Standard materials: 316ss, nickel 200, Inconel® 600, Hastelloy® C and Monel®
  • US and International patents pending

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  • Sizes & Pressures
  • Burst Tolerance
  • Assemblies
  • Documentation

Sizes & Pressures

QRB™ Disk Specifications Minimum/Maximum Pressure with Rating at 72° (22°C)

Disk Size Burst Pressure
in mm psig barg
min max min max
0.25 6 800 17,000 55.16 1172.11
0.375 9 800 14,000 55.16 965.27
0.5 12 500 10,500 34.47 723.95
0.75 19 350 5,000 24.13 344.74

Note: Hastelloy® is a trademark of Haynes International Inc. Monel® and Inconel® are registered trademarks of Special Metals Corporation and its subsidiaries.

Burst Tolerance

Marked Burst Pressure Burst Tolerance
≤ 40 psig (2.76 barg) ± 2 psig (0.138 barg)
> 40 psig (2.76 barg) ± 5%

Standard Assembly Options

Sta-Kul™ Brass Body

TorqueFit

Welded Cassettes

Welded Assembly

Threaded Assembly

Product Literature

QRB™ Quantum Reverse Buckling Rupture Disk
Threaded Rupture Disk Assemblies
Custom Engineered Products
Burst Alert Sensors
Detec Saf Alarm System - Burst Disk Monitor

Overview

The QRB™ Rupture Disk (Bursting Disc) provides a reverse buckling style disk in small sizes and low pressures. The QRB™ Rupture Disk (Bursting Disc) is ideal for applications less than 1 inch (25mm) and with lower pressure ratings. The reliable and accurate performance of the QRB™ Rupture Disk (Bursting Disc) has been proven in the aircraft, defense, automotive and OEM industries Applications can be developed for low volume, starting at one unit, and upwards to high volume automated manufacturing.