Concave Grooved Bursting Disc (LC)

Concave Grooved Bursting Disc (LC)

The bursting disc features a weakened groove on its convex side (typically the concave face) in the form of a "cross," "star," or "ring" pattern. When pressure reaches the burst pressure, the disc ruptures along these grooves to relieve pressure.

Product Features

  • Suitable for gas, liquid, and dust media
  • No debris or sparks during detonation; compatible with series-connected safety valves.
  • Higher fatigue strength and longer fatigue life than standard positive-arch rupture discs.
  • Maximum working pressure can reach up to 80% of the minimum burst pressure.
  • Burst disc materials available: stainless steel, nickel, Hastelloy, Monel, tantalum, and others.
  • Burst pressure is customizable; Size: DN5~DN300

Technical Specifications

Applicable MediaGas/Liquid/Dust
Diameter RangeDN5-DN300
Maximum Operating Pressure≤80% Burst Pressure
Rupture disk materialStainless steel, nickel, Hastelloy, Monel, tantalum, and other materials
Reference StandardsGB/T567, TSG92-2026

Relevant Standards

GB/T 567TSG 92-2026
Jiangsu ICP Record No. 2026013540-1