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Rupture Discs (Bursting Discs)

Rupture Discs (Bursting Discs) function as a pre-designed "weak point" in a pressurized system, and they should be the strongest part of your pressure protection system. Continental Disc Corp's rupture discs (bursting discs) utilize innovative and patented designs, the highest quality materials from traceable sources, and ISO 9001 manufacturing procedures performed by skilled craftsmen.

Reverse Acting (Reverse buckling) Rupture Discs
First choice for pulsating and cyclic pressures.

Reverse Acting Rupture Discs (bursting discs) are oriented in a system with
the process media pressure against the convex side of the disc, placing the
rupture disc (bursting disc) in compression. As the burst pressure rating of the
disc is reached, the compression loading on the rupture disc causes it to reverse,
snapping through the neutral position and causing it to open by a predetermined
scoring pattern.

A reverse acting rupture disc provides advantages, as compared to tension type
rupture discs, which may warrant consideration when selecting a rupture disc.
These advantages include:

  • Available with maximum recommended operating pressure ratios up to
    95% of the stamped burst pressure.
  • Up to full vacuum capabilities without the need of an additional support
    member.
  • Longer service life under cyclic or pulsating conditions.
  • Constructed using thicker materials providing greater resistance to corrosion


Forward Acting (Tension Loaded) Rupture Discs
Economical option suited to static conditions.

Tension Type Rupture Discs (Bursting discs) are oriented in a system with the
process media pressure against the concave side of the rupture disc. As the
process pressure increases beyond the allowable operating pressure, the
rupture disc starts to grow. This growth will continue as the pressure increases,
until the tensile strength of the material is reached and rupture occurs.


 

 

Why Choose a Rupture Disc??

Rupture disc assemblyAside from instantateous full relief, zero leakage and lower operating costs. Rupture discs (bursting discs) are a failsafe relief device, which is a huge advantage if the purpose of your relief device is protection of personal and equipment. Valves can stick, corrode, be damaged or miss assembled/serviced. All of which can result in a failure to operate and a potentially catastrophic outcome. HPX rupture discs are a fail safe design which, regardless of damage, corrosion and age will still burst at or below it's certified value.

Products:

Rupture disc selection guideRupture Disc Selection Guide Rupture disc selection guideCertiflow Rupture disc selection guideBurst Rating Types

HPX® - Continental Rupture Discs
Rupture disc offered with a choice of true 90% or 95% operating to burst ratio.

The HPX® Rupture Disc (bursting disc) is a scored, reverse acting rupture disc utalising CDC's industry leading technology and craftsmanship. The HPX® Rupture Disc is a high precision reverse acting rupture disc that offers proven performance in excess of 5 million cycles at 95% operating ratio. Thats over 5 times longer than our nearest competitor.

The HPX® Rupture Disc excels in fully liquid, gaseous and partial gas/liquid systems. Full opening guaranteed.

Features include:

- Zero leakage
- 95% operating to burst ratio (100% under ISO 4126-2)
- 5 million+ cycle life
- Industry leading Kr values for both gas and liquid
- Superior lip seal design removes need for pre torque holders and torque sensitivity of discs
- Non fragmenting
- Compliance with ASME, PED, ISO, NACE, CE, NADCAP, Reach and more.


HPX Data Sheet

SANITRX® HPX - Continental Rupture Discs
Sanitary Rupture disc with HPX's class leading performance

The SANITRX HPX® rupture disc (bursting disc) is a scored reverse acting rupture disc (bursting disc) designed specifically for the pharmaceutical, food and beverage, and biotech industries. This differential pressure relief device features an instantaneous full-open relief area for protecting equipment, vessels, systems and people from an overpressure condition. This high precision reverse acting rupture disc (bursting disc) offers proven performance in excess of 5 Million cycles at a 95% operating ratio.

SANITRX HPX Data Sheet

 


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HPX-Ta (Tantalum) - Continental Rupture Discs
Rupture Disc constructed of Tantalum for superior corrosion resistance

The HPX-Ta™ Rupture Disc (bursting disc) is a Tantalum semicircular scored reverse acting rupture disc designed specifically for use in highly corrosive media, such as bromine, chlorine, HCL, nitric acid or sulfuric acid. In certain concentrations, temperatures and moisture conditions, Tantalum is frequently the only suitable rupture disc material for the application.

HPX-Ta Data Sheet

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LOTRX® - Continental Rupture Discs
Rupture disc / burst disc for very low pressures

The LOTRX Rupture Disc (bursting disc) represents a breakthrough in rupture disc design. The LOTRX Rupture Disc provides all the benefits of Continental's scored, reverse acting discs, with additional features that make it ideal for extremely low pressure applications.

LOTRX Data Sheet

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STAR X® - Continental Rupture Discs
Rupture disc / burst disc for low pressures

The STAR X Rupture Disc (bursting disc) is designed to provide protection at even lower burst pressures than the ULTRX or MINTRX rupture discs. It has Continental Disc's patented nonsymmetrical failure initiating indents, to precisely control disc buckling at a predetermined pressure. The STAR X Rupture Disc incorporates a handling ring to reduce torque sensitivity. It is specifically designed for low pressure applications that require operating ratio of up to 90% of the disc's rated (marked) burst pressure.

STAR X Data Sheet

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MINTRX® - Continental Rupture Discs
Rupture disc / burst disc for low pressures

The MINTRX Rupture Disc (bursting disc) has many of the same benefits as the HPX Rupture Disc, but is specifically designed to operate at lower burst pressures. When the patented precision controlled indentation on the rupture disc surface initiates the reversal action, full opening will occur..

Note: For replacement only. HPX now exceeds the ability and perforance of Mintrx


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RCS - Continental Rupture Discs
Reverse acting rupture disc up to 800mm

The RCS Rupture Disc (bursting disc) is a reverse acting, crossscored rupture disc. It is a non-reclosing differential pressure relief device that provides instantaneous full opening for protection of equipment, vessels and systems from overpressure conditions.

RCS Data Sheet

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SANITRX® LPX - Continental Rupture Discs
Sanitary rupture disc designed for pharmaceutical, food, beverage, and biotech industries.

The SANITRX® LPX is a stainless steel, reverseacting rupture disc (bursting disc) designed specifically for the pharmaceutical, food and beverage, and biotech industries.

This differential pressure relief device features an instantaneous full-open relief area for protecting equipment, vessels, systems and people from an overpressure condition.

SANITRX LPX Data Sheet

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SANITRX® HPX II - Continental Rupture Discs
Sanitary rupture disc for higher pressure applications

The SANITRX HPX® II Rupture Disc is a semicircular, scored, reverse acting rupture disc (bursting disc) designed specifically for applications in the pharmaceutical, food & beverage and biotech industries that require pressures above our SANITRX HPX® Rupture Disc. Available in sizes 1 ½” to 4,” this rupture disc is available to fit between standard sanitary ferrules, NA CONNECT® flanges or SANITRX® fittings. SANITRX HPX® II rupture discs are shipped in sanitary, environmentally friendly, non-toxic packaging.

SANITRX HPX ii Data Sheet

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SANITRX® LP - Continental Rupture Discs
Sanitary Rupture Disc for low pressure applications

For applications that require lower pressures with reduced flow resistance, Continental Disc offers the SANITRX LP® Rupture Disc (bursting disc). This new rupture disc was designed specifically to provide the same features as the original SANITRX® Rupture Disc, but with the added benefit of lower available burst pressures plus, through the benefit of using our on-site ASME Accepted Flow Test Laboratory, the SANITRX LP® Rupture Disc has been designed to have one of the lowest KR flow resistance factors available in a rupture disc of any design - from any manufacturer.

SANITRX LP Data Sheet


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