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Bursting Discs Overview

/Bursting Discs Overview

Bursting Discs Overview

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 rupture discs (bursting discs) utilize innovative, patented designs, the highest quality materials from traceable sources, and ISO 9001 manufacturing procedures performed by skilled craftsmen.

Rupture discs by type:


Rupture Discs – Reverse Acting

HPX Bursting Disc - Rupture Disc

Rupture Discs – 5,000,000 cycles at 95% operating ratio

The HPX product family is the most advanced line of rupture discs available, incorporating proven performance in excess of a five million cycles, operating up to 95% of burst pressure, and offered in a wide range of burst pressures, materials and sizes. These features support reduced down time and lower maintenance costs, increasing the productivity of your facility!

Cycle tests performed at CDC Engineering Labratory and further information available on request.
The ASME code mandates that two rupture discs per lot are the minimum requirements to make a batch of discs which some manufacturers adhere to. CDC however go above and beyond the ASME code with their unique lot qualification testing.
For example the “simulated in-plant use test” is the only way to offer a guarantee to the client that the disc will work for their application.

ULTRX® Scored Reverse Acting Continental Rupture Disc (Bursting Disc) Lot Qualification and In-house Testing Procedures

ULTRX rupture discs (bursting discs) are manufactured and tested under a Quality Assurance Program certified to ISO 9001 Quality System requirements. Before any lot of ULTRX rupture discs are shipped from Continental Disc Corporation, specific criteria must be met. Following is a listing of qualification procedures and tests required for each lot.
Safety Ultrx1
Any bursting disc which fails any test or inspection at any stage during manufacture, causes total lot rejection. The lot of rupture discs is scrapped, remanufactured and each step or test listed below is repeated. There are NO MARGINAL RUPTURE DISCS, NO SECONDS, and in TOTAL QUALITY, no room for error.

1) Liquid Penetrant Test – A liquid penetrant test is conducted on each rupture disc to verify the score integrity.

2) Destructive Burst Test – To verify non-fragmentation, an air volume burst test, to destruction, is conducted on one rupture disc from the manufactured lot.

3) Destructive Burst Test – One rupture disc from the lot is intentionally damaged. This rupture disc is then burst under air pressure to verify the damage safety ratio.

4) Destructive Burst Test – Two rupture discs from the lot are intentionally damaged. Under hydraulic pressure, both rupture discs are burst tested to verify the damage safety ratio in liquid service.

5) Destructive Burst Test – A minimum of two rupture discs are burst tested at ambient temperature as required by ASME Code Section VIII and Continental Disc Corporation’s internal testing standard.

6) Destructive Burst Test – Two rupture discs are burst tested at elevated temperature as required by ASME Code Section VIII.

7) Simulated In-Plant Use Test – One rupture disc is pressurised with 30 psig pressure on the concave side. This rupture disc is cycled from 0 to 90% of the ambient rating (plus 30 psig) against the convex side for a minimum of 1000 cycles, followed by a liquid penetrant test of the rupture disc score line. This is to simulate in-plant use and verify score line integrity.

8) Proof Pressure Test – All remaining rupture discs in the lot, comprising the shipment quantity, are proof pressure tested to 90% of the ambient temperature rating to verify each rupture disc’s ability to withstand the maximum operating pressure recommended by Continental disc Corporation.

9) Final Production Stage:

a) Cleaning the finished rupture discs.
b) Tagging per customer requirements on Continental Disc’s exclusive three-dimensional tag. Tagging includes KR, MNFA, and UD Code Symbol Stamp when ASME Section VIII is specified.
c) Completion of a burst test certificate for enclosure with shipment.

Final inspection by Quality Assurance is independent of production. It is performed 100% and includes verification of all test results for conformance, rupture disc physical appearance, documentation review and packaging inspection.

ULTRX holders have been similarly design tested and are 100% inspected for dimensional characteristics and appearance by Quality Assurance inspectors. Continental Disc Corporation provides permanently affixed Stainless Steel Customer Identification Tag when equipment tag numbers are furnished on the order.

Safety HPX scoring_300pxPrecision scoring in the vent side of the dome improves cyclic life as the score is in compression rather than shear. This is also much better for Biotech applications as its a more aseptic design as the score is not in contact with the process. This is a result of years of R & D work at CDC who drive the rupture disc market in terms of new technology & development.
  • Advanced product design
  • Precise manufacturing technology
  • Extensive testing performed during the manufacturing process and lot qualification
  • Pre-shipment inspection
  • Unique packaging designed to protect your rupture discs in shipment, storage and handling at your plant site
  • Ability to operate in pressure-to-vacuum cycling applications
Built on years of research and development, the HPX and SANITRX® HPX bursting discs are high precision pressure relieving devices that protect personnel, equipment and the environment. The versatility of the HPX product family offers pressure protection for a wide range of applications in many processing industries, including: chemical, oil and gas, food, beverage, pharmaceutical, biotech, pulp and paper, power and more.

Whether you need a rupture disc to meet the most demanding application requirements or a rupture disc to economically meet the needs of a less demanding one, the HPX and SANITRX HPX rupture disc is the solution for you.

HPX and SANITRX HPX bursting discs are available in various sizes, materials, ratings, manufacturing ranges, and operating ratios to meet the performance criteria demanded by your application requirements.

Due to its high performance operating capabilities, range of burst ratings and materials of construction, the HPX rupture disc is the ideal product to use in plants where production includes batch processing runs where operating conditions and media may change frequently. The variability offered by HPX burst discs makes future modifications to specifications easier to incorporate in change control procedures and without piping modifications.
The HPX rupture disc is a semicircular scored reverse acting rupture disc that is ideal for liquid or gas/vapor applications.

Each lot of discs is built to order per the specifications of each overpressure relief requirement in your plant. Each lot is then performance tested to provide reliable performance in your plant during normal operations and in overpressure conditions. Each HPX disc is proof pressure-tested prior to shipment.

Optimum material thickness and manufacturing tooling design provide not only the full opening and accurate burst rating you expect but also longer service life at higher operating-to-burst ratios demanded by today’s process industries.

Ideal for liquid or gas/vapor applications

To optimize service life and rupture disc performance, Continental Disc Corporation manufactures and tests each HPX rupture disc order for compressible or incompressible relief conditions as required by your application. HPX rupture discs manufactured and tested only for compressible (gas/vapor) relief conditions may not function properly in an incompressible (liquid) application. Please state in your specifications and orders if a scenario exists for relief of incompressible media or if relief conditions exist only for compressible media.

Burst Pressures

– The following table shows burst pressures available at 72°F (22°C)
Safety burstpressures_fs

Maximum Recommended Temperature Limits

Safety maxrecc_fs

  • for corrosion protection on the process side of the rupture disc.
  • TEFLON Outlet Protective Cover available for corrosion protection on the vent side of the rupture disc and holder.
  • TEFLON coating is available for corrosion protection on the process and/or vent side of the rupture disc.
CORROSION RESISTANCE can be enhanced by TEFLON® coating or TANTALINE® treatment of the holder inlet and/or outlet.

The TANTALINE process creates a pinhole-free, corrosion-resistant barrier of pure tantalum metal. The Tantalum metal is grown into the substrate metal (typically, 316 stainless steel) and alloy bonded. As a result, typical modes of failure of traditional tantalum coatings that are sprayed or dipped, such as delamination, chipping and spalling, are virtually non-existent.

Features
  • DISC SIZES – HPX: 1” through 8” sizes; SANITRX HPX: 1” through 3” sizes
  • DISC MATERIALS – 316 and 316L Stainless Steel, Nickel, MONEL®, INCONEL®, HASTELLOY® C
  • BURST PRESSURES – 10 psig to 1000 psig (0,689 barg to 68,9 barg)
  • MANUFACTURING RANGE – Zero, -5% and -10%
  • OPERATING RATIO – Choice of 90% or 95%
  • SAFETY RATIO – 1 to 1 or less. If the rupture disc becomes damaged, it will relieve at or below the burst pressure
  • DURABILITY – Design tested for 5,000,000 cycles from full vacuum to 95% of burst rating
  • DESIGN – Non-fragmenting, reverse acting, bubble-tight seal
Holders

Burst Disc Safety insertholder

The HPX Insert holder is designed to optimize flow, assure proper orientation of the HPX rupture disc in your piping system, provide a tight seal, prevent fragmentation of the rupture disc and enable direct mounting of a safety relief valve on the holder outlet.
Features:
  •  Flow optimization of the HPX holder and rupture disc assembly is characterized by best-in-class certified KR factors of 0.29 for gas/vapor relief or 0.38 for liquid relief.
  • Proper orientation of the disc in the holder is assured by the three alignment pins in the holder inlet that properly align and orient the rupture disc in the holder. An optional J-Hook can be used to orient the holder in its mating flanges. The flow arrows on the holder and rupture disc tags confirm proper flow direction.
  • A durable tapered sealing surface on the holder inlet that, along with proper installation and handling, provides a bubble-tight (no air bubbles detected with leak detection fluid) metal-to-metal seal between the holder inlet and rupture disc. Contact your sales representative for specific leak rate or leak testing requirements.
  • The holder outlet bore incorporates an arcuate that provides a radiused hinge for the disc petal to form around preventing fragmentation of the disc.
  • HPX holder outlets are designed to eliminate the need for a spool piece between the holder outlet and nozzle of a safety relief valve.
  • The holder inlet protects the rupture disc dome during installation of the assembly into the piping system.
  • As a standard, the holder will come with spiral groove facing per ASME BI6.5, which will provide a surface finish between 125 and 250 microinches (3,2 to 6,3 HPX INSERT micrometers).

Safety burstpressures_fs

Burst Pressures & Temperature Limits & Pressure Rating, Tolerance & Max Operating Pressures

Rupture Disc Rating Type
Safety graph2_fs
Safety graph3_fs

Burst Disc Indicator
Universal or Integral B.D.I.® (Burst Disc Indicator) Alarm System

The B.D.I. (Burst Disc Indicator) Alarm System is designed for use with Continental rupture discs. The B.D.I. Alarm System signals the system operator when a rupture disc has burst to relieve an over pressure or vacuum condition.

The heart of the system is the B.D.I. Alarm Strip. Upon disc rupture, the B.D.I. Alarm Strip is severed, disrupting the flow of electric current through the strip. The change in the electric circuit status can be monitored in a control room, or with a Continental Disc B.D.I. Monitor. The B.D.I. Monitor can warn with a visual and/or audible alarm and can also activate appropriate equipment.

The B.D.I. Alarm System should be specified:
  • When warning of pressure relief is essential for plant safety
  • When immediate notice is needed of relief of an overpressure or vacuum condition to indicate process malfunction
  • When indication is vital that a rupture disc has burst and toxic substances are venting
  • When emergency equipment must be triggered immediately upon disc rupture to alter or stop a process
  • When loss or contamination of product will occur if a rupture disc is not replaced immediately
  • When monitoring of rupture discs is important in hard-to-reach locations

Safety BDI universal_fs
Safety BDI integral_fs
All data on rupture discs is based on the best available information for Continental Disc Corporation currently available and is subject to change without prior notice.


Sanitary Rupture Disc

5,000,000 cycles at 95% operating ratio

The HPX product family is the most advanced line of rupture discs available, incorporating proven performance in excess of five million cycles, operating up to 95% of burst pressure, and offered in a wide range of burst pressures, materials and sizes. These features support reduced down time and lower maintenance costs, increasing the productivity of your facility!

Cycle tests performed at CDC Engineering Labratory and further information available on request.
SANITRX Scored Reverse Acting Continental Rupture Disc Lot Qualification Testing

SANITRX burst discs are manufactured and tested under a Quality Assurance Program certified to ISO 9001 Quality System requirements. Before any lot of SANITRX rupture discs are shipped from Continental Disc Corporation, specific criteria must be met. Following is a listing of qualification procedures and tests required for each lot.

Any rupture disc which fails any test or inspection at any stage during manufacture, causes total lot rejection. The lot of rupture discs is scrapped, re-manufactured and each step or test listed below is repeated. There are NO MARGINAL RUPTURE DISCS, NO SECONDS, and in TOTAL QUALITY, no room for error.
Safety lot_fs

1) Liquid Penetrant Test – A liquid penetrant test is conducted on each rupture disc to verify the score integrity.

2) Destructive Burst Test – One rupture disc from the lot is intentionally damaged. This rupture disc is then burst under air pressure to verify the damage safety ratio.

3) Destructive Burst Test – When specified for liquid service, two rupture discs from the lot are intentionally damaged. Under hydraulic pressure, both rupture discs are burst tested to verify burst pressure and the damage safety ratio in liquid service.

4) Destructive Burst Test – A minimum of two rupture discs are burst tested at ambient temperature as required by ASME Code Section VIII and Continental Disc Corporation’s internal testing standard.

5) Destructive Burst Test – Two rupture discs are burst tested at elevated temperature in accordance with C.D.C’s internal test standard. ASME Code Section VIII temperature tests are also conducted when specified.

6) Simulated Service Test – One rupture disc is pressurized with 15 psig pressure on the concave side. The rupture disc is then cycled from 0 to 90% of the ambient rating (plus 15 psig) against the convex side for a minimum of 500 cycles, followed by a liquid penetrant test of the rupture disc score line. This functional test is to verify score line integrity after cycling.

7) Proof Pressure Test – All remaining rupture discs in the lot, comprising the shipment quantity, are proof pressure tested to 90% of the ambient temperature rating to verify each rupture disc’s ability to withstand the maximum operating pressure recommended by Continental Disc Corporation.

8) Final Production Stage:

  • Cleaning the finished rupture discs.
  • Tagging per customer requirements on Continental Disc’s exclusive three-dimensional tag. Tagging includes capacity when ASME Section VIII is specified.
  • Completion of a burst test certificate for enclosure with shipment.

Final inspection by Quality Assurance is independent of production. It is performed 100% and includes verification of all test results for conformance, rupture disc physical appearance, documentation review, and packaging inspection.

Safety indicator_fs
Universal or Integral B.D.I.® (Burst Disc Indicator) Alarm System

The B.D.I. (Burst Disc Indicator) Alarm System is designed for use with Continental rupture discs. The B.D.I. Alarm System signals the system operator when a rupture disc has burst to relieve an over pressure or vacuum condition.

The heart of the system is the B.D.I. Alarm Strip. Upon disc rupture, the B.D.I. Alarm Strip is severed, disrupting the flow of electric current through the strip. The change in the electric circuit status can be monitored in a control room, or with a Continental Disc B.D.I. Monitor. The B.D.I. Monitor can warn with a visual and/or audible alarm and can also activate appropriate equipment.

The B.D.I. Alarm System should be specified:
  • When warning of pressure relief is essential for plant safety
  • When immediate notice is needed of relief of an over pressure or vacuum condition to indicate process malfunction
  • When indication is vital that a rupture disc has burst and toxic substances are venting
  • When emergency equipment must be triggered immediately upon disc rupture to alter or stop a process
  • When loss or contamination of product will occur if a rupture disc is not replaced immediately
  • When monitoring of rupture discs is important in hard-to-reach locations

Safety BDI universal_fs

Safety BDI integral_fs

Ideal for liquid or gas/vapor applications

To optimize service life and rupture disc performance, Continental Disc Corporation manufactures and tests each HPX rupture disc order for compressible or in-compressible relief conditions as required by your application. HPX rupture discs manufactured and tested only for compressible (gas/vapor) relief conditions may not function properly in an in-compressible (liquid) application. Please state in your specifications and orders if a scenario exists for relief of in-compressible media or if relief conditions exist only for compressible media.

Maximum Recommended Temperature Limits

Safety maxrecc_fs

Due to its high performance operating capabilities, range of burst ratings and materials of construction, the HPX rupture disc is the ideal product to use in plants where production includes batch processing runs where operating conditions and media may change frequently

The variability offered by HPX rupture discs makes future modifications to specifications easier to incorporate in change control procedures and without piping modifications.

HPX bursting discPrecision scoring in the vent side of the dome improves cyclic life as the score is in compression rather than shear. This is also much better for Biotech applications as its a more aseptic design as the score is not in contact with the process. This is a result of years of R & D work at CDC who drive the rupture disc market in terms of new technology & development.
Standard gaskets are designed for use in industry standard ferrules with optional gaskets available for use in SANITRX flat face fittings and NovAseptic Connectors. Replacement slotted gaskets are available upon request. Slotted gaskets of the same material and seat type as the original should be used to maintain the original specifications as shown on the rupture disc tag.

Gaskets made from materials shown in the Gasket Materials and Temperatures table have been tested and certified to be in compliance with USP Class VI, Section Biological Reactivity Tests, “In Vivo”.

PTFE TEFLON® gaskets are in compliance with FDA CFR Title 21, Part 177, Subpart B Section 177.1550. Materials other than PTFE TEFLON® shown in the Gasket Materials and Temperatures table are in compliance with FDA CFR Title 21, Part 177, Subpart C Section 177.2600. All of these gaskets are free of animal and human derivatives, polishing compounds and release agents.

The SANITRX HPX also specifically fits within the sanitary clamping design of the NovAseptic NA-CONNECT holder. This flush-mount holder is becoming increasingly popular in sanitary processing industries because it allows installation of the rupture disc directly against the wall of the vessel to allow for easy cleaning and sterilization.

Safety NA Connect design

Safety fittingclamp_fs

Clamps

SANITRX HPX rupture discs are designed for installation directly between sanitary tube O.D. connections secured in place with a heavy-duty clamp, such as the Continental Disc MBC™ (Multi-Bolt Clamp) or a Sanitary Fitting Clamp (both pictured above). Both 304 SS clamp types are available in 1” through 4” sizes.

Fittings

SANITRX® and SANITRX HPX rupture discs are designed for use with ASME BPE and 3A compliant grooved fittings. For convenience, Continental Disc offers ASME BPE compliant butt weld ferrules, spool pieces and concentric reducers.

Safety fittings_fs

  • Advanced product design
  • Precise manufacturing technology
  • Extensive testing performed during the manufacturing process and lot qualification
  • Pre-shipment inspection
  • Unique packaging designed to protect your rupture discs in shipment, storage and handling at your plant site
  • Ability to operate in pressure-to-vacuum cycling applications
The HPX rupture disc is a semicircular scored reverse acting rupture disc that is ideal for liquid or gas/vapor applications.

Each lot of discs is built to order per the specifications of each over pressure relief requirement in your plant. Each lot is then performance tested to provide reliable performance in your plant during normal operations and in over pressure conditions. Each HPX rupture disc is proof pressure-tested prior to shipment.

Optimum material thickness and manufacturing tooling design provide not only the full opening and accurate burst rating you expect but also longer service life at higher operating-to-burst ratios demanded by today’s process industries.

SANITRX HPX rupture discs are shipped in sanitary, non-toxic environmentally-friendly packaging.
Benefits:

Safety sanitary packing fs

  • Plastic packaging eliminates direct contact of the rupture disc with open cell material, such as cardboard or foam, which can carry contaminants or leave particles on the rupture disc.
  • Clear packaging provides visibility of the rupture disc tag allowing verification of the rupture disc specification without removal from the package.
  • The plastic package and cardboard carton are recyclable materials.
  • Combined with the vertical tag, the new plastic packaging provides a compact, space saving container for the rupture disc
This standard provides requirements applicable to the design of equipment used in the biotech, pharmaceutical and personal care industries including aspects related to sterility and clean-ability, materials of construction, dimensions and tolerances, surface finish, material joining and seals.

The standard applies to components in contact with the product, raw materials or intermediates. Systems that are a critical part of the manufacturing process such as water for injection (WFI), clean steam, filtration and intermediate storage may also abide by this standard.

SANITRX HPX is in compliance with the essential criteria of the ASME BPE standard as follows:
  • CIP and SIP cleanable
  • Withstands temperatures of 130°C where steam sterilization is required
  • The standard surface finish meets SF1 (20 Ra microinch) for the SANITRX HPX and the internal surfaces of the ASME BPE compliant sanitary fittings
  • The SANITRX HPX gaskets in the Gasket Materials and Temperatures table meet ASME BPE requirements, including full trace-ability and prohibition of animal derivatives
  • Rupture discs and fittings are usually, as a standard, made out of 316L SS material; alternates are available if specified by users
  • Fully traceable 316 or 316L SS materials
  • Fittings are marked and packaged in accordance with ASME BPE
  • USP Class VI certified gaskets meet all ASME BPE requirements including full trace-ability and prohibition of animal derivatives
The SANITRX HPX rupture disc is a semicircular scored reverse acting rupture disc designed specifically for the pharmaceutical, biotech, food, and beverage industries

This rupture disc is available to fit between industry standard sanitary ferrules, NA CONNECT® flanges or SANITRX fittings

SANITRX HPX rupture discs are shipped in sanitary, environmentally friendly, non-toxic packaging.

The SANITRX HPX rupture disc can be used in a wide range of sanitary and hygienic applications throughout pharmaceutical, biotech, food, and beverage facilities. The following list is only a small sample of the many ways in which this outstanding rupture disc can be used.
  • AUTOCLAVES
  • AUTOCLAVES STORAGE & TRANSPORT VESSELS
  • WFI VESSELS & PIPING
  • BIOREACTORS
  • MIXING, DRYING, GRANULATING EQUIPMENT
  • CLEAN STEAM PIPING
  • PROCESS VESSELS
  • LYOPHILIZERS (FREEZE DRYING)
  • FERMENTERS
  • HEAT EXCHANGERS
  • CIP & SIP SKIDS AND PIPING
  • FILTERS
Safety sanitary gasket

All data on discs is based on the best available information for Continental Disc Corporation currently available and is subject to change without prior notice.


Sanitary Rupture Disc Non PED

Rupture disc

5,000,000 cycles at 95% operating ratio

The HPX product family is the most advanced line of rupture discs available, incorporating proven performance in excess of five million cycles, operating up to 95% of burst pressure, and offered in a wide range of burst pressures, materials and sizes. These features support reduced down time and lower maintenance costs, increasing the productivity of your facility!

Cycle tests performed at CDC Engineering Labratory and further information available on request.
SANITRX Scored Reverse Acting Continental Rupture Disc Lot Qualification Testing

SANITRX rupture discs are manufactured and tested under a Quality Assurance Program certified to ISO 9001 Quality System requirements. Before any lot of SANITRX rupture discs are shipped from Continental Disc Corporation, specific criteria must be met. Following is a listing of qualification procedures and tests required for each lot.

Any rupture disc which fails any test or inspection at any stage during manufacture, causes total lot rejection. The lot of rupture discs is scrapped, re-manufactured and each step or test listed below is repeated. There are NO MARGINAL RUPTURE DISCS, NO SECONDS, and in TOTAL QUALITY, no room for error.
Safety lot_fs
1) Liquid Penetrant Test – A liquid penetrant test is conducted on each rupture disc to verify the score integrity.

2) Destructive Burst Test – One rupture disc from the lot is intentionally damaged. This rupture disc is then burst under air pressure to verify the damage safety ratio.

3) Destructive Burst Test – When specified for liquid service, two rupture discs from the lot are intentionally damaged. Under hydraulic pressure, both rupture discs are burst tested to verify burst pressure and the damage safety ratio in liquid service.

4) Destructive Burst Test – A minimum of two rupture discs are burst tested at ambient temperature as required by ASME Code Section VIII and Continental Disc Corporation’s internal testing standard.

5) Destructive Burst Test – Two rupture discs are burst tested at elevated temperature in accordance with C.D.C’s internal test standard. ASME Code Section VIII temperature tests are also conducted when specified.

6) Simulated Service Test – One rupture disc is pressurized with 15 psig pressure on the concave side. The rupture disc is then cycled from 0 to 90% of the ambient rating (plus 15 psig) against the convex side for a minimum of 500 cycles, followed by a liquid penetrant test of the rupture disc score line. This functional test is to verify score line integrity after cycling.

7) Proof Pressure Test – All remaining bursting discs in the lot, comprising the shipment quantity, are proof pressure tested to 90% of the ambient temperature rating to verify each rupture disc’s ability to withstand the maximum operating pressure recommended by Continental Disc Corporation.

8) Final Production Stage:

  • Cleaning the finished rupture discs.
  • Tagging per customer requirements on Continental Disc’s exclusive three-dimensional tag. Tagging includes capacity when ASME Section VIII is specified.
  • Completion of a burst test certificate for enclosure with shipment.

Final inspection by Quality Assurance is independent of production. It is performed 100% and includes verification of all test results for conformance, rupture disc physical appearance, documentation review, and packaging inspection.

burst disc indicator BDI
Universal or Integral B.D.I.® (Burst Disc Indicator) Alarm System

The B.D.I. (Burst Disc Indicator) Alarm System is designed for use with Continental rupture discs. The B.D.I. Alarm System signals the system operator when a rupture disc has burst to relieve an over pressure or vacuum condition.

The heart of the system is the B.D.I. Alarm Strip. Upon disc rupture, the B.D.I. Alarm Strip is severed, disrupting the flow of electric current through the strip. The change in the electric circuit status can be monitored in a control room, or with a Continental Disc B.D.I. Monitor. The B.D.I. Monitor can warn with a visual and/or audible alarm and can also activate appropriate equipment.

The B.D.I. Alarm System should be specified:
  • When warning of pressure relief is essential for plant safety
  • When immediate notice is needed of relief of an overpressure or vacuum condition to indicate process malfunction
  • When indication is vital that a rupture disc has burst and toxic substances are venting
  • When emergency equipment must be triggered immediately upon disc rupture to alter or stop a process
  • When loss or contamination of product will occur if a rupture disc is not replaced immediately
  • When monitoring of rupture discs is important in hard-to-reach locations

BDI rupture disc

BDI Rupture disc - integral

Due to its high performance operating capabilities, range of burst ratings and materials of construction, the HPX burst disc is the ideal product to use in plants where production includes batch processing runs where operating conditions and media may change frequently

The variability offered by HPX bursting discs makes future modifications to specifications easier to incorporate in change control procedures and without piping modifications.

Safety HPX scoring_300pxPrecision scoring in the vent side of the dome improves cyclic life as the score is in compression rather than shear. This is also much better for Biotech applications as its a more aseptic design as the score is not in contact with the process. This is a result of years of R & D work at CDC who drive the rupture disc market in terms of new technology & development.
Standard gaskets are designed for use in industry standard ferrules with optional gaskets available for use in SANITRX flat face fittings and NovAseptic Connectors. Replacement slotted gaskets are available upon request. Slotted gaskets of the same material and seat type as the original should be used to maintain the original specifications as shown on the rupture disc tag.

Gaskets made from materials shown in the Gasket Materials and Temperatures table have been tested and certified to be in compliance with USP Class VI, Section Biological Reactivity Tests, “In Vivo”. PTFE TEFLON® gaskets are in compliance
with FDA CFR Title 21, Part 177, Subpart B Section 177.1550. Materials other than PTFE TEFLON® shown in the Gasket Materials and Temperatures table are in compliance with FDA CFR Title 21, Part 177, Subpart C Section 177.2600. All of these gaskets are free of animal and human derivatives, polishing compounds and release agents.

Safety gaskettable

The SANITRX HPX also specifically fits within the sanitary clamping design of the NovAseptic NA-CONNECT holder. This flush-mount holder is becoming increasingly popular in sanitary processing industries because it allows installation of the rupture disc directly against the wall of the vessel to allow for easy cleaning and sterilization.

Safety NA Connect design

Safety fittingclamp_fs

Clamps

SANITRX HPX rupture discs are designed for installation directly between sanitary tube O.D. connections secured in place with a heavy-duty clamp, such as the Continental Disc MBC™ (Multi-Bolt Clamp) or a Sanitary Fitting Clamp (both pictured above). Both 304 SS clamp types are available in 1” through 4” sizes.

Fittings

SANITRX® and SANITRX HPX rupture discs are designed for use with ASME BPE and 3A compliant grooved fittings. For convenience, Continental Disc offers ASME BPE compliant butt weld ferrules, spool pieces and concentric reducers.

Safety fittings_fs

  • Advanced product design
  • Precise manufacturing technology
  • Extensive testing performed during the manufacturing process and lot qualification
  • Pre-shipment inspection
  • Unique packaging designed to protect your rupture discs in shipment, storage and handling at your plant site
  • Ability to operate in pressure-to-vacuum cycling applications
The HPX rupture disc is a semicircular scored reverse acting rupture disc that is ideal for liquid or gas/vapor applications.

Each lot of discs is built to order per the specifications of each over pressure relief requirement in your plant. Each lot is then performance tested to provide reliable performance in your plant during normal operations and in over pressure conditions. Each HPX rupture disc is proof pressure-tested prior to shipment.

Optimum material thickness and manufacturing tooling design provide not only the full opening and accurate burst rating you expect but also longer service life at higher operating-to-burst ratios demanded by today’s process industries.

SANITRX HPX rupture discs are shipped in sanitary, non-toxic environmentally-friendly packaging.
Benefits:

Safety sanitary packing fs

  • Plastic packaging eliminates direct contact of the bursting disc with open cell material, such as cardboard or foam, which can carry contaminants or leave particles on the rupture disc.
  • Clear packaging provides visibility of the bursting disc tag allowing verification of the rupture disc specification without removal from the package.
  • The plastic package and cardboard carton are recyclable materials.
  • Combined with the vertical tag, the new plastic packaging provides a compact, space saving container for the rupture disc
This standard provides requirements applicable to the design of equipment used in the biotech, pharmaceutical and personal care industries including aspects related to sterility and clean-ability, materials of construction, dimensions and tolerances, surface finish, material joining and seals.

The standard applies to components in contact with the product, raw materials or intermediates. Systems that are a critical part of the manufacturing process such as water for injection (WFI), clean steam, filtration and intermediate storage may also abide by this standard.

SANITRX HPX is in compliance with the essential criteria of the ASME BPE standard as follows:
  • CIP and SIP cleanable
  • Withstands temperatures of 130°C where steam sterilization is required
  • The standard surface finish meets SF1 (20 Ra microinch) for the SANITRX HPX and the internal surfaces of the ASME BPE compliant sanitary fittings
  • The SANITRX HPX gaskets in the Gasket Materials and Temperatures table meet ASME BPE requirements, including full trace-ability and prohibition of animal derivatives
  • Rupture discs and fittings are usually, as a standard, made out of 316L SS material; alternates are available if specified by users
  • Fully traceable 316 or 316L SS materials
  • Fittings are marked and packaged in accordance with ASME BPE
  • USP Class VI certified gaskets meet all ASME BPE requirements including full trace-ability and prohibition of animal derivatives
The SANITRX® LPX is a stainless steel, reverse-acting bursting disc designed specifically for the European 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 over pressure condition.

  • Sizes available: 40 mm, 50 mm, 80 mm
  • Rupture disc and ring materials: 316 SS, 316L SS
  • Gasket Materials (FDA and USP Class VI Compliant): Peroxide Cured Silicone1, Platinum Cured Silicone, White VITON®, Black VITON®, White EPDM, Black EPDM, PTFE TEFLON®
  • Burst Pressure: 0,3 MIN to 0,5 MAX barg @ 20 Deg C
  • Maximum recommended operating ratio: 90% of MIN burst pressure
  • Designed and tested for gas/vapor service
  • Permanently attached three-dimensional flow direction tag provides immediate visual verification of proper burst disc orientation within the piping system.
  • Bursting discs can be operated to full vacuum
  • Available with Continental Disc alarm systems to remotely signal when the rupture disc has burst
  • SANITRX LPX bursting discs are available with the full support and expertise of our technical team
  • The standard low pressure (Burst Pressure: 0,3 MIN to 0,5 MAX barg @ 20 Deg C) of the SANITRX LPX allows for a significant cost and time savings benefit in that there is no requirement of third party inspection because PED is not applicable.
  • Meets ASME BPE and USP Class VI criteria, including:
  1. SF1 surface finish (0,5 Ra micrometers or better)
  2. Solid metal construction provides cleanability for CIP/SIP applications
  3. Fully traceable materials including USP Class VI certified gaskets
  4. All components are free of polishing compounds, release agents and animal derivatives
  • Lower installation and maintenance costs
  • Increased productivity
SANITRX LPX rupture discs are designed for installation directly between sanitary tube O.D. connections secured in place with a heavy-duty clamp, such as the Continental Disc MBC™ (Multi-Bolt Clamp) or a Sanitary Fitting Clamp.

All data on discs is based on the best available information for Continental Disc Corporation currently available and is subject to change without prior notice.

2018-04-27T09:44:12+00:00