Mini XT™ Tension Loaded Design

Performance Features

  • Solid metal, tension loaded rupture disk
  • Standard sizes: 3/16", 1/4", 3/8", 1/2" and 3/4" (4.8 mm, 6 mm, 9 mm, 12.7 mm and 19 mm)
  • Standard materials: 316ss, nickel 200, Inconel® 600, Hastelloy® C and Monel®
  • Domed solid metal disk with circular score opening
  • Pressure ratings from 300 to 20,000 psig (22 to 1,379 barg)
  • Resists full vacuum
  • Opens full bore with no flow restrictions
  • Designed for gas service or gas driven liquid service
  • ‘X’ shaped score pattern; designed for non-fragmentation

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  • Sizes & Pressures
  • Burst Tolerance
  • Safety Heads & Sensors
  • Accessories
  • Documentation

Sizes & Pressures

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

Disk Size Nickel Alloy 200 Inconel® Alloy 600 316ss Aluminum
in mm psig barg psig barg psig barg psig barg
min max min max min max min max min max min max min max min max
0.25 6 3,000 20,000 207 1,380 3,000 20,000 207 1,380 3,000 20,000 207 1,380 290 * 20 *
0.375 9 3,000 20,000 207 1,380 3,000 20,000 207 1,380 3,000 20,000 207 1,380 200 * 14 *
0.5 13 3,000 20,000 207 1,380 3,000 20,000 207 1,380 3,000 20,000 ,207 1,380 140 * 10 *
0.75 19 170 * 12 * 230 * 16 * 425 * 29 * 90 * 6 *
1 25 100 1,450 7 100 165 1,450 11 100 175 1,450 12 100 80 1,450 6 100

*Maximum burst pressures are handled on a case by case basis.
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%

Accessories

BS&B supplies many of the Accessories required to safely and conveniently install our overpressure relief devices and complementary products. Through our professional team and global network of sales engineers and procurement personnel, we are able to provide the highest quality accessory products to meet your installation requirements.

Saf-T-Change Quick Disk Replacement (QDR)

After activation, the replacement disk is quickly slid into place. Saving hours of lost production due to blown rupture disks.

Tell-Tale Assemblies & Excess Flow Valves/Gauges

A gauge tap in the outlet flange of the safety head may be considered when the safety head is installed in a vertical position.

Spare Safety Heads & Cap Screws

Jackscrews

When activated, the jackscrews effectively separate the flanges, providing adequate clearance to remove or insert a safety head and external gaskets.

Lifting Lug Eye Bolts

Eye bolts are recommended when weight and/or accessibility is a factor in lifting safety heads.

Baffle Plate

When a safety head is free-vented to atmosphere, a baffle plate may be considered to disperse overpressure and absorb recoil.

Product Literature

Custom Engineered Products
Threaded Rupture Disk Assemblies
Burst Alert Sensors
Detec Saf Alarm System - Burst Disk Monitor