IntegrX-HPX™ Sanitary Rupture Disc
How do you eliminate the last retention zone of a sanitary rupture disc, the integrated gasket between disc and ferrule? The IntegrX-HPX™ disc provides the answer: a reverse-acting disc welded to its ferrules, with no integrated gasket and no cavity, compliant with the ASME BPE-2019 Appendix M spray coverage test, dye-penetrant tested on 100% of parts before shipment.
IntegrX-HPX™ datasheet (LIT21042)
HPX® Product Family brochure (PDF)
Continental Disc Corporation website
IntegrX-HPX™, sanitary rupture disc with crevice-free design
Reverse-acting disc welded to its ferrules, no integrated gasket, ASME BPE-2019 Appendix M, range -196°C to +260°C
Reverse-acting sanitary rupture disc designed for the biopharmaceutical industry.
Scored semi-circular design, welded directly to its 316/316L stainless steel clamp ferrules.
The gasket integrated into the disc is eliminated: downstream sealing is provided by a standard sanitary gasket on the customer side, whose material and source remain under the process owner’s control.
No cavity, no dead zone, no anchoring interface for biofilm.
Compliant with the spray device coverage test described in ASME BPE-2019 Appendix M.
Cleanability test by dye penetrant (Dye Penetrant per ASME BPVC Section V) carried out on 100% of discs before shipment.
95% operating ratio. Range -196°C to +260°C. ASME (UD), PED (CE), UKCA and CRN certifications.
What it is for
On a conventional sanitary disc, even one compliant with ASME BPE, the disc + integrated gasket assembly has a micro-cavity at the welded interface. In practice, with a CIP spray device, this area is difficult to cover. The IntegrX-HPX™ eliminates the problem at source: the disc is welded to the ferrules, there is no longer an interface and no longer an integrated gasket. The ASME BPE-2019 Appendix M spray coverage test is genuinely passed, not circumvented. Dye-penetrant inspection on 100% of parts confirms this batch by batch.
Typical applications: hybrid single-use bioreactors, media tanks, WFI and Purified Water lines with intensive steam cycling, biotech cryogenic processes, freeze-drying lines, high-throughput CIP/SIP skids, sterile processes where change control requires user-side control of the gasket (material, batch, replacement interval). Anywhere a quality audit identifies the disc/ferrule interface as a cleanability risk.
Diameters 1 to 4 inches (DN 25 to DN 100). Burst pressure 1.03 to 34.5 bar (15 to 500 psig). The tag is positioned outside the line: burst data can be read directly without dismantling, and it aids identification during installation.
The welded design brings an additional mechanical benefit: downstream piping loads (expansion, misalignment, clamping stresses) no longer reach the scored area of the disc. The actual burst pressure does not drift under external stress.
Characteristics
| Characteristic | Value |
| Type | Reverse-acting disc, scored semi-circular, welded to the ferrules |
| Diameters | 1″ to 4″ (DN 25 to DN 100) |
| Burst pressure range | 1.03 to 34.5 bar (15 to 500 psig) |
| Manufacturing range | ZERO only |
| Burst tolerance | ±5% above 2.76 barg (40 psig), ±0.138 barg (±2 psig) at 40 psig and below |
| Operating / burst ratio | 95% of burst pressure above 40 psig; 95% of burst pressure minus the tolerance below |
| Temperature range | -196°C to +260°C (-320°F to +500°F) |
| Fluid | Gas, steam or liquid |
| Disc materials | 316 SS, Alloy C276, Alloy C22 |
| Standard ferrule material | 316 / 316L SS |
| Connection | ASME BPE, ISO 2852, DIN 32676 sanitary ferrules |
| Sealing gasket | No integrated gasket: standard sanitary gasket on the customer side |
| Crevice-free design | Compliant with ASME BPE-2019 Appendix M (spray coverage test) |
| Cleanability inspection | Dye penetrant testing to ASME BPVC Section V on 100% of discs, process side |
| CIP / SIP | Cleanable and sterilisable in compliance with ASME BPE requirements |
| KRGL factor (gas/liquid) | 1.88 across the entire range |
| Standard surface finish | 0.5 µm Ra (20 micro-inches) |
| Electropolished finish | Optional |
| Labelling | Remote external tag, burst data visible without dismantling |
| Certifications on request | ASME (UD), PED (CE), UKCA, CRN |
| Burst detection | Compatible with third-party disc detection systems (to be confirmed depending on configuration) |
Options
Electropolished finish on process-exposed surfaces. ASME (UD), PED (CE), UKCA and CRN certifications on request, to be specified when ordering. Compatible with installation between industry-standard ferrules, NovAseptic® NA-CONNECT® flanges and other sanitary configurations. The downstream sealing gasket must be ordered separately according to the material selected by the process owner.
Frequently asked questions
Practical difference compared with a standard SANITRX HPX® II?
Three major operational differences. One: the IntegrX-HPX™ is welded to its ferrules, whereas the SANITRX HPX® II sits loose between two standard sanitary ferrules. Two: no integrated gasket on the disc side, which eliminates the micro-cavity and transfers the choice of sanitary gasket to the user. Three: the temperature range extends to -196°C on the cryogenic side and to 260°C on the steam side (compared with 232°C for the SANITRX HPX® II). For standard sanitary cycling without cryogenic requirements or enhanced spray coverage, the SANITRX HPX® II remains the proven solution. As soon as a BPE 2019 audit is decisive or a steam cycle exceeds 232°C, the IntegrX-HPX™ is the right answer.
No integrated gasket: how is sealing achieved?
With a standard sanitary gasket, chosen and qualified by the user: platinum silicone, EPDM, enveloped PTFE, reinforced PTFE depending on fluid, temperature and regulatory requirements. The IntegrX-HPX™ design makes the hygienic system as a whole independent of the disc: the gasket is a consumable whose replacement interval and source can be managed, with no impact on burst performance.
Why only a ZERO manufacturing range?
A ZERO manufacturing range means that the marked burst pressure is hit exactly, with no negative production margin. The -5% and -10% ranges of the industrial HPX® range are used to optimise manufacturing cost on large runs. On a precision sanitary disc intended for biopharma, the repeatability requirement takes priority over manufacturing cost optimisation: ZERO only.
Truly cryogenic-compatible at -196°C?
Yes, the range stated by Continental Disc® goes down to -320°F, i.e. -196°C. Typical applications: liquid nitrogen tanks, vaccine cold chain lines, cryogenic cell preservation systems. At the other extreme, 260°C covers superheated pure steam. This thermal span is the widest in the Continental Disc® sanitary range.
Is the 100% dye-penetrant test batch by batch or part by part?
Part by part. Each IntegrX-HPX™ disc undergoes dye-penetrant inspection on the process side (Dye Penetrant per ASME BPVC Section V) before shipment. Objective: to guarantee the absence of machining or welding defects in the area in contact with the fluid. Test traceability is available on request.
UKCA certification: why mention it explicitly?
Since Brexit, CE marking is no longer sufficient for placing products on the British market. The IntegrX-HPX™ is available with UKCA (UK Conformity Assessed) and CRN (Canadian Registration Number) certification for the Canadian provinces, in addition to the usual ASME (UD) and PED (CE). Useful in practice when a pharma process is delivered to multiple international sites from France.