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Rupture Disc for Pressure Relief Systems
High-performance rupture discs designed to provide instant overpressure protection for pressure vessels, reactors, pipelines, storage tanks, and process systems. Available in stainless steel, nickel, Hastelloy, graphite, and other corrosion-resistant materials with custom burst pressure ratings.
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Technical data
Rupture Disc Overview
A rupture disc (also known as a burst disc or bursting disc) is a non-reclosing pressure relief device designed to protect pressure vessels, pipelines, reactors, and processing equipment from dangerous overpressure or vacuum conditions. The disc is engineered to rupture at a predetermined pressure, providing immediate pressure relief and preventing catastrophic equipment failure.
Our rupture discs are manufactured with high precision to ensure accurate burst pressure performance, excellent leak tightness, and long service life. They can be supplied as forward-acting, reverse-buckling, or graphite rupture discs to meet different industrial requirements.
Suitable for chemical processing, pharmaceutical manufacturing, petrochemical plants, food processing facilities, power generation systems, and other critical industrial applications.
Rupture Disc — Technical Data
| Parameter | Specification |
|---|---|
| Product Type | Rupture Disc / Burst Disc |
| Disc Design | Forward Acting / Reverse Buckling |
| Size Range | DN15 – DN600 |
| Burst Pressure | Custom Designed |
| Temperature resistance | -196°C to +900°C |
| Pressure resistance | 10–120 MPa |
| Bending strength | 530–610 MPa |
| Thermal shock | Up to 250°C |
| Expansion coefficient | ≤ 6.3 × 10⁻⁶ K⁻¹ |
Rupture Disc drawing
Dimensions — Rupture Disc
| Diameter | Rated pressure |
|---|---|
| 50 mm | 1.0 MPa |
| 129 mm | 20 MPa |
| 129 mm | 30 MPa |
| 136 mm | 50 MPa |
| 136 mm | 60 MPa |
| 140 mm | 30 MPa |
| 140 mm | 40 MPa |
| 140 mm | 50 MPa |
| 200 mm | 80 MPa |
| Other sizes can be customized | |
KEY FEATURES
Fast Pressure Relief Response
Opens within milliseconds when the specified burst pressure is reached
Accurate Burst Pressure Rating
Manufactured to tight tolerances for reliable pressure protection
Leak-Tight Design
Provides excellent sealing performance under normal operating conditions
Corrosion Resistant Materials
Available in Stainless Steel, Nickel, Inconel, Hastelloy, Graphite, and PTFE-lined constructions
Wide Temperature Range
Suitable for high-temperature and cryogenic applications.
Custom Design Available
Custom burst pressure, size, material, and holder configurations available.
Custom Manufacturing Service
We provide tailor-made solutions according to drawings or technical requirements.
- Custom diameter
- Custom thickness
- Special pressure design
- Edge polishing
- Optical finishing
- OEM / ODM support
- Custom packaging
TYPICAL APPLICATIONS
- Pressure Vessels
- Chemical Reactors
- Boilers & Steam Systems
- Pipeline Sight Glass Assemblies
- Pharmaceutical Equipment
- Food & Beverage Processing
- Industrial Observation Ports
FAQ
A: A rupture disc is a one-time-use pressure relief device designed to burst at a predetermined pressure to protect equipment from overpressure conditions.
A: A rupture disc provides instantaneous pressure relief and remains leak-tight until activation, while a safety valve opens and reseats repeatedly during operation.
A: No. Once a rupture disc has burst, it must be replaced with a new disc.
A: Can DIN 7080 sight glass be used under pressure?
A: Yes. Custom sizes, burst pressures, materials, and holder assemblies can be manufactured according to customer requirements.
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