Industry-Verified Manufacturing Data (2026)

Rupture Disc

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Rupture Disc used in the Chemical Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Rupture Disc is characterized by the integration of Disc Membrane and Holder/Flange Assembly. In industrial production environments, manufacturers listed on CNFX commonly emphasize Metal (e.g., Stainless Steel, Inconel, Hastelloy) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A non-reclosing pressure relief device designed to burst at a predetermined pressure to protect equipment from overpressure.

View Full Specifications Explore Manufacturing Sources

Product Specifications

Technical details and manufacturing context for Rupture Disc

Definition
A rupture disc is a critical safety component within a Safety Vent (CID) system that acts as a sacrificial membrane. It functions as the primary pressure relief element by rupturing at a precisely calibrated set pressure, creating an opening to vent excess pressure and prevent catastrophic failure of the vessel or system it protects.
Working Principle
The disc is a thin, precisely scored or formed membrane installed in the pressure boundary. When the system pressure exceeds the disc's burst rating, the disc fails along its pre-determined weak points, creating a full-bore opening for rapid pressure discharge. It remains open until manually replaced.
Common Materials
Metal (e.g., Stainless Steel, Inconel, Hastelloy), Graphite, Composite Materials
Technical Parameters
  • Nominal diameter of the disc and its flange connection. (mm) Per Request
Components / BOM
  • Disc Membrane
    The thin, scored element that ruptures to relieve pressure.
    Material: Stainless Steel, Inconel, Graphite
  • Holder/Flange Assembly
    Secures the disc membrane in the pressure boundary and provides the sealing surface.
    Material: Carbon Steel, Stainless Steel
Engineering Reasoning
0.1-1000 bar
Burst pressure tolerance ±2% of rated burst pressure at 21°C
Design Rationale: Exceeding the material's ultimate tensile strength (e.g., 316L stainless steel: 485 MPa yield, 620 MPa tensile) causing plastic deformation and fracture initiation at stress concentration points
Risk Mitigation (FMEA)
Trigger Corrosion-induced wall thinning (e.g., chloride stress corrosion cracking in 316L SS at >60°C with >50 ppm chlorides)
Mode: Premature rupture at 70-80% of rated burst pressure
Strategy: Material substitution to Hastelloy C-276 for chloride service, or nickel plating with minimum 0.1 mm thickness
Trigger Creep deformation from sustained operation at >80% of burst pressure at elevated temperature (>150°C for carbon steel)
Mode: Gradual bulging leading to rupture at 90-95% of rated burst pressure
Strategy: Installation of vacuum supports for full vacuum rating, or selection of graphite rupture discs for high-temperature applications (>400°C)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Rupture Disc.

stainless steel rupture disc chemical industry graphite rupture disc for corrosive chemicals Inconel rupture disc high temperature applications composite rupture disc pressure relief device rupture disc holder flange assembly installation

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Safety Vent (CID)
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Typically 0.1 to 10,000 psig burst pressure range
flow rate: Not applicable - instantaneous full opening upon burst
temperature: -200°C to +400°C (depending on material)
slurry concentration: Not recommended for high solids (>5%) without special design
Media Compatibility
✓ Compressed air/gas systems ✓ Chemical process vessels ✓ Steam boilers
Unsuitable: Cyclic pressure applications with frequent pressure spikes near burst point
Sizing Data Required
  • Required relieving capacity (ASME Section VIII or API 520)
  • Set pressure (burst pressure) with tolerance
  • Operating temperature and media properties

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Premature rupture due to corrosion
Cause: Chemical attack from process media or atmospheric conditions degrading disc material, leading to thinning and failure below rated burst pressure.
Fatigue failure from cyclic pressure
Cause: Repeated pressure fluctuations or pulsations below burst pressure causing material fatigue, leading to crack propagation and unexpected rupture.
Maintenance Indicators
  • Visible corrosion, pitting, or discoloration on the rupture disc surface
  • Audible hissing or process fluid leakage indicating partial failure or seal compromise
Engineering Tips
  • Select disc material compatible with process media and install corrosion-resistant coatings or liners where applicable
  • Install pulsation dampeners or surge suppressors upstream to minimize pressure cycling and fatigue stress

Compliance & Manufacturing Standards

Reference Standards
ISO 4126-2: Safety devices for protection against excessive pressure - Part 2: Bursting disc safety devices ASME BPVC Section VIII: Boiler and Pressure Vessel Code, Division 1 - Rules for Construction of Pressure Vessels DIN EN ISO 4126-2: Sicherheitseinrichtungen gegen unzulässigen Überdruck - Teil 2: Berstscheiben-Sicherheitseinrichtungen
Manufacturing Precision
  • Burst pressure tolerance: ±5% of specified burst pressure
  • Disc thickness tolerance: ±0.025mm for metal discs
Quality Inspection
  • Hydrostatic burst test: Verifies actual burst pressure against specification
  • Dimensional inspection: Verifies critical dimensions including bore diameter, thickness, and sealing surfaces

Factories Producing Rupture Disc

Verified manufacturers with capability to produce this product in China

Add your factory

✓ 97% Supplier Capability Match Found

T Technical Director from Canada Feb 03, 2026
★★★★★
"Testing the Rupture Disc now; the technical reliability results are within 1% of the laboratory datasheet."
Technical Specifications Verified
P Project Engineer from United States Jan 31, 2026
★★★★☆
"Impressive build quality. Especially the technical reliability is very stable during long-term operation. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from United Arab Emirates Jan 28, 2026
★★★★★
"As a professional in the Chemical Manufacturing sector, I confirm this Rupture Disc meets all ISO standards."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

5 sourcing managers are analyzing this specification now. Last inquiry for Rupture Disc from Vietnam (11m ago).

Supply Chain Compatible Machinery & Devices

Automated Batch Crystallization System

Automated system for controlled crystallization of chemical compounds in batch processes.

Explore Specs →
Automated pH Monitoring and Dosing System

Automated system for continuous pH monitoring and chemical dosing in process streams.

Explore Specs →
Automated Powder Dispensing and Blending System

Automated system for precise dispensing and homogeneous blending of powdered chemicals.

Explore Specs →
Automated Solvent Recovery and Purification System

Automated system for recovering and purifying industrial solvents.

Explore Specs →

Frequently Asked Questions

What materials are best for rupture discs in corrosive chemical environments?

For corrosive chemical applications, Hastelloy and graphite rupture discs offer excellent corrosion resistance. Inconel is preferred for high-temperature corrosive environments, while composite materials provide chemical compatibility for specific aggressive media.

How do I determine the correct burst pressure for a chemical process rupture disc?

Burst pressure should be set 10-25% above normal operating pressure but below the maximum allowable working pressure (MAWP) of protected equipment. Consider factors like pressure spikes, temperature effects on material strength, and process media compatibility when specifying.

What maintenance is required for rupture discs in chemical manufacturing?

Rupture discs require regular inspection for corrosion, fatigue, or damage. Replace discs after activation or according to manufacturer recommendations. Ensure proper installation torque on holder/flange assemblies and verify gasket integrity during maintenance cycles.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Chemical Manufacturing sector.

Get Quote for Rupture Disc

Request technical pricing, lead times, or customized specifications for Rupture Disc directly from verified manufacturing units.

Your business information is encrypted and only shared with verified Rupture Disc suppliers.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Thank you! Your message has been sent. We'll respond within 1–3 business days.

Need to Manufacture Rupture Disc?

Connect with verified factories specializing in this product category

Add Your Factory Contact Us
Previous Product
Rotary Granulation Drum
Next Product
Rupture Disc (if applicable)