SRD™ and SRD-L™ Reverse Buckling Rupture Disk

Precision Circular-Scored Reverse Buckling Rupture Disk


Performance Features

  • Designed for gas, liquid and multi-phase service
  • Suitable for operating pressure to X% of the marked burst pressure (X+5% of the minimum)
  • Designed for non-fragmentation, recommended for Relief Valve isolation
  • Damage safety ratio ≤ 1.5
  • Suitable for cycling service
  • Vacuum resistant
  • Optional fluoropolymer liner/coating
  • Available with ASME “UD” (select 0%, -5%, -10% Manufacturing Design Range)
  • Pressure Equipment Directive “CE” marking and/or other International Certifications
  • BS&B proprietary technology

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

Sizes & Pressures

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

Disk Size SRD (CCS) SRD-L (CCS-L) Material
in mm psig barg psig barg
min max min max min max min max
1 25 481 750 33.2 51.7 75 480 5.2 33.1
Tantalum, Nickel Alloy 200, Hastelloy® Alloy C-276 and 316ss, Inconel® Alloy 600, Monel® Alloy 400, and Titanium
1.5 40 421 600 29.0 41.4 75 420 5.2 29.0
2 50 421 500 29.0 34.5 75 420 5.2 29.0
3 80 281 500 19.4 34.5 45 280 3.1 19.4
4 100 271 500 18.7 34.5 20 270 1.4 18.7
6 150 101 200 7.0 13.8 20 100 1.4 7.0
8 200 76 150 5.2 10.3 15 75 1.0 5.2
10 250 60 100 4.1 6.89 13 60 0.9 4.1
12 300 45 75 3.1 5.17 11 45 0.76 3.10

The hinge attached to the disk is 316ss. Fluoropolymer liners are available at all burst pressures and may be applied to either side or both sides of a SRD or SRD-L Rupture Disk. Liners may not be available for all burst pressures shown.

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

Sta-Saf System Brochure
SRD™ and SRD-L™ Rupture Disk Brochure
Burst Alert Sensors Brochure

Installations

Sta-Saf™ System Installation Instructions
Burst Alert Leak Dectector Installation Instruction
Burst Alert Sensor Installation Instruction