High Purity Forward-Acting Rupture Disc
Product Model: ZD-014 (Nuclear Qualified / High-Purity)
Material: Ultra-high purity 316L or specified nuclear alloys (e.g., NC30Fe). Electropolished surfaces.
Standards: Compliant with ASME Section III, NCA-3800, RCC-M, or customer-specific nuclear codes.
Key Feature: Extensive documentation pedigree, including material traceability and special process controls.
Typical Use: Nuclear reactor auxiliary systems, spent fuel pool cooling, isotope production, and high-purity semiconductor gas panels.
Overview
In nuclear power and high-purity electronics industries, component reliability and material integrity are paramount. This disc is manufactured under a rigorous quality assurance program that meets nuclear or ultra-high-purity standards. Every step—from material sourcing and forging to machining, cleaning, and testing—is documented and controlled. The result is a rupture disc with guaranteed performance, exceptional cleanliness, and full traceability, suitable for safety-related systems and contamination-sensitive processes.
Features & Benefits
Full Material Traceability: Each component can be traced back to its original melt lot with certified chemical and mechanical properties.
Controlled Manufacturing: Processes such as welding, heat treatment, and cleaning are performed to controlled procedures and recorded.
Surface Finish & Cleanliness: Components are electropolished and cleaned to specified particle count and cleanliness levels (e.g., for semiconductor service).
Comprehensive Documentation: Supplied with a complete data pack including Material Certificates, Heat Treatment charts, NDE reports, and Cleanliness Certificates.
How It Works
It functions identically to a standard forward-acting disc in terms of pressure relief physics. The critical difference lies in the assurance of quality, material properties, and predictable performance provided by the controlled manufacturing and testing regimen.
Specifications (Descriptive)
Sizes are typically in the small to medium range (DN15 to DN100) for instrument and auxiliary lines. Burst pressures are specified to precise requirements. Materials are restricted to code-approved lists: for example, 316L SS with controlled cobalt content for nuclear applications. Surface finishes of Ra < 0.4 μm are standard for high-purity versions. All non-destructive examinations (liquid penetrant, radiography) are performed as per the applicable code. Holders are manufactured to the same standards as the disc.
Q&A
Q: What is the lead time for a nuclear-grade disc?
A: Lead times are significantly longer than for commercial discs due to the extensive documentation, controlled procurement, and specialized inspections required. Planning is essential, often ranging from 20 to 40 weeks.
Q: Can existing standard discs be retrofitted into a nuclear system?
A: No. Only components manufactured, documented, and stamped under the appropriate nuclear quality assurance program (NQA-1 or equivalent) are acceptable for installation in nuclear safety-related systems.
Q: Is this disc suitable for radioactive process media?
A: The materials are selected for compatibility with reactor coolant and other nuclear system media. The design facilitates decontamination if necessary. Specific service conditions must be reviewed during selection.
About ZD Safety
We operate dedicated quality programs for critical industries. Our commitment to procedural rigor and complete documentation provides the certainty required for nuclear and other high-assurance applications, where failure is not an option.
