Continental Disc Corporation Rupture Disc Selection Guide
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- Walter Flowers
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1 Continental Disc Corporation Rupture Disc Selection Guide
2 CONTINENTAL DISC CORPORATION SELECTING A RUPTURE DISC Continental Disc Corporation manufactures rupture discs to our customers specifications to help protect vessels, equipment and systems against damaging overpressure conditions. QUALITY Quality starts with our first contact with you. That quality is an integral part of every step we take to provide you with what you expect to receive. All manufacturing is performed under an approved ISO 9001 Quality Assurance System. C.D.C. can supply rupture discs certified to the standards of the ASME, the European Pressure Equipment Directive, the China Safety Quality Licensing Administration, the 3A Sanitary Standards Council, and many others. SERVICE A commitment to supply the services you expect: Technical assistance, training and support Fast, technical, easily understood quotations Providing the product to your specifications Shipping schedules that are unmatched in the industry C.D.C. offers an emergency service program to meet your needs. Shipping schedules are adjusted daily to meet your emergency requirements. QUALITY, SERVICE, TECHNICAL SUPPORT, INNOVATIVE PRODUCTS These are the benchmarks that enable C.D.C. to provide you, our customer, with the best possible products and services. TECHNICAL SUPPORT Our policy is to continuously train in-house and field personnel. This has resulted in C.D.C. s reputation as a provider of correct, effective answers to special pressure relief application problems. We offer technical seminars for: Rupture disc applications Custom manufactured products Installation and handling Maintenance procedures With a world-wide representative network backed by an in-house technical staff, C.D.C. can assist in determining the best and most economical rupture disc for your specific needs. INNOVATIVE PRODUCTS We are leading the way to tomorrow! Exclusive products introduced to meet our customers needs include: ULTRX Rupture Disc...A scored, reverse acting rupture disc for either GASEOUS or LIQUID systems. LOTRX Rupture Disc... A scored, reverse acting rupture disc with features that make it ideal for low pressure applications as low as 1.5 psig (0,103 barg). B.D.I. ALARM SYSTEM... Immediately notifies operators that a rupture disc has burst. CAL-VAC /POS-A-SET Rupture Discs...The industry s first ultralow pressure rupture disc capable of operating in inches of water column. QUICK-CHANGE HOLDER... For fast, easy rupture disc changeout. 3-D TAG...A three-dimensional flow tag of corrosion resistant stainless steel to provide visual verification the rupture disc is properly oriented in the system. 1. To select the proper rupture disc for any application, it is important to begin by writing down specific data about your system. a. Maximum allowable working pressure of the vessel (MAWP): psig, barg, kg/cm 2, etc. b. Maximum operating conditions: Pressure: psig, barg, kg/cm 2, etc. Temperature: degree of Fahrenheit, Centigrade, etc. c. Rupture disc burst conditions: Pressure: psig, barg, kg/cm 2, etc. Temperature: degree of Fahrenheit, Centigrade, etc. d. Process media: liquid or gas e. Backpressure and/or vacuum conditions: psig, barg, kg/cm 2, etc. In many cases, the type of rupture disc for a given application may be found using the following steps: f. Service conditions: static, cyclic or pulsating. If known, what is the frequency of cycles or pulsations g. Code/Standards requirements: ASME Section III or VIII, BSI, EN, ISO, TUV, JIS, DIN, etc. h. Appropriate rupture disc and holder material to meet corrosive and/or temperature requirements of the application i. Flange connection type and class at rupture disc installation j. Other special conditions 2. Calculate the system operating to rupture disc burst pressure ratio. maximum operating pressure x 100 % Ratio= minimum rupture disc burst pressure 3. Refer to page 18, 19 & 20 of this guide and make a tentative rupture disc selection from the chart using the system data summarized in steps 1 and Check the appropriate C.D.C. product literature to assure the rupture disc burst pressure is within the minimum and maximum pressure capability of the selected rupture disc type and material. 5. Select required options or accessories for both the rupture disc and holder, such as coating, lining, J-Hook, excess flow valve, vacuum support, etc. 6. Refer to the specific C.D.C. product literature for detailed ordering information. The final selection of a rupture disc and holder is the responsibility of the customer. If you need assistance or additional technical information, consult your C.D.C. representative or the factory. 2 3
3 TYPE OF DISC No single type of rupture disc will meet all the numerous applications of an industry. Each type of rupture disc, Tension or Reverse Acting, has its own characteristics and capabilities. Tension Type Rupture Discs Reverse Acting Rupture Discs Fig. A Fig. C Process Side Fig. B Process Side Tension Type rupture discs are oriented in a system with the process media pressure against the concave side of the rupture disc (Figure A, 30 Seat; Figure B, Flat Seat). 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. Process Side Reverse Acting rupture discs are oriented in a system with the process media pressure against the convex side of the disc (Figure C), placing the rupture 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 or knife blade penetration. A reverse acting rupture disc provides some advantages, as compared to tension type rupture discs, which may warrant consideration when selecting a rupture disc. These advantages include: Zero manufacturing range allowing the rupture disc to operate to 90% of its stamped burst pressure 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 Pages 5-17 of this guide provide a brief overview of the various tension and reverse acting design rupture discs, holders, accessories and options offered by Continental Disc Corporation. For detailed information regarding a specific design, refer to the bulletin noted at the end of each product overview, or contact the factory directly. 4
4 TENSION TYPE DISC Standard Rupture Disc Composite Rupture Disc A Standard Rupture Disc is a solid metal, differential pressure relief device with an instantaneous, full-opening, non-reclosing design. SPECIFICATIONS Sizes: 1/4" - 30" (6,0mm - 750mm) diameter Pressure: Up to 70% of rated burst pressure Temperature: To 1000 F (538 C) Depending on material Burst pressure: 3 to 80, F (0,207 to C) Service: Liquid or gas, static, cyclic and pulsating conditions Material: Aluminum, Nickel, Inconel *, Monel *, Silver, Tantalum, Hastelloy C and 316SS; other materials available Tagging: Three-dimensional stainless steel flow tag attached to 1" (25mm) and above Seat type: 30 degree or flat seat Holders: Insert, Full Bolted, Union, Screw-Type, Tite-Seal or QUICK-CHANGE holders Options: Rupture Disc: Liners, coatings, protective rings, gaskets, vacuum or handling supports and dent protectors Holder: J-Hook, coating, special gasket surface finish, gauge tap The Composite Rupture Disc is designed for systems requiring a lower burst pressure than offered in Standard discs. C.D.C. s patented seven-hole center pattern is designed for non-fragmentation when used with a Teflon seal. SPECIFICATIONS Sizes: 1" - 30" (25mm - 750mm) diameter Pressure: Up to 80% of rated burst pressure Temperature: To 1000 F (538 C) Depending on material Burst pressure: 2 to F (0,138 to 99,3 22 C) Service: Liquid or gas, static, pulsating or cyclic conditions; may be used under pressure relief valves Material: Top Section: 316SS, Nickel, Inconel, Monel, Tantalum, Aluminum, or Hastelloy ** C. Seal: Teflon *** or metal Other materials available Tagging: Three-dimensional stainless steel flow tag attached to 1" (25mm) and above Seat type: 30 degree Holders: Insert, Full Bolted, Union, or QUICK-CHANGE holders Options: Rupture Disc: Liners, protective rings, gaskets, vacuum or handling supports Holder: J-Hook, coating, special gasket surface finish, gauge tap Standard Type Rupture Disc bulletin # Composite Type Rupture Disc bulletin # *Inconel and Monel are registered trademarks of the Inco family of companies. **Hastelloy is a registered trademark of Haynes International. ***Teflon is a registered trademark of E.I. du Pont de Nemours and Company used under license. 5
5 TENSION TYPE MICRO X Cross Scored Rupture Disc Composite Flat Seat Rupture Disc The MICRO X Rupture Disc is a cross-scored flat seat tension type rupture disc. It is designed for non-fragmentation with a four-petal opening. Sizes: 1" - 36" (25mm - 900mm) diameter Pressure: Up to 80% of rated burst pressure Temperature: To 1000 F (538 C) Depending on material Burst pressure: 15 to F (1,03 to C) Service: Liquid or gas, static, pulsating or cyclic conditions; may be used under a pressure relief valve Material: Nickel, Monel, Inconel, Tantalum, Hastelloy C, or 316SS; other materials available Tagging: Three-dimensional stainless steel flow tag attached to all sizes Seat type: Flat seat Holder: UNISERT, QUICK-CHANGE or CLEAN-SWEEP holder Options: Rupture Disc: Liners, coatings, vacuum support (vacuum support not required in 1"- 4" {25mm- 100mm} size) Holder: J-Hook, coating, special gasket surface finish, gauge tap, tantalum lining (UNISERT) 6 The Composite Flat Seat Rupture Disc is designed for systems requiring a lower burst pressure than offered in a MICRO X Rupture Disc. C.D.C. s seven-hole center pattern provides a non-fragmenting design when used with a Teflon seal. UNISERT Assembly bulletin # Sizes: 11/16" - 36" (17,5mm - 900mm) diameter Pressure: Up to 80% of rated burst pressure Temperature: To 1000 F (538 C) Depending on material Burst pressure: 2 to F (0,138 to 99,3 22 C) Service: Liquid or gas, static, pulsating or cyclic conditions; may be used under pressure relief valves Material: Top Section: 316SS, Nickel, Inconel, Monel, Tantalum, or Hastelloy C Seal: Teflon or metal Other materials available Tagging: Three-dimensional stainless steel flow tag attached to 1" (25mm) and above Seat type: Flat seat Holders: UNISERT, Tite-Seal, Screw Type, QUICK-CHANGE, Sanitary or CLEAN-SWEEP holder Options: Rupture Disc: Liners, protective rings, gaskets, vacuum support Holder: J-Hook, coating, special gasket surface finish, gauge tap, tantalum lining (UNISERT)
6 TENSION TYPE DISC ENVIRO-SEAL Rupture Disc Tite-Seal Rupture Disc Assemblies The ENVIRO-SEAL Rupture Disc is a flat composite rupture disc, designed to provide economic isolation for low pressure atmospheric storage vessels or to isolate the downstream side of a pressure relief valve. ENVIRO-SEAL Rupture Discs are available in three designs: Type I: Burst in one direction only Type II & III: Burst in either direction, positive or vacuum, at the same burst pressure Sizes: 2"- 36" (50mm - 900mm) diameter Pressure: Up to 50% of rated burst pressure Temperature: To 400 F (204 C) Burst pressure: 1 to F (0,069 to 4,07 22 C) Service: Gas or liquid Material: Top section(s): 316SS, Nickel, Inconel, Monel, Tantalum, or Hastelloy C; other materials available Seal(s): Teflon or Polyethylene (at the discretion of C.D.C.) Gaskets: Non-asbestos both sides Tagging: Three-dimensional stainless steel flow tag attached Seat type: Flat Seat Holder: Designed to mount directly between standard bore ANSI, DIN or JIS companion flanges The Tite-Seal Rupture Disc Assembly is an economical throwaway sealed unit available with 1/4", 3/8" or 1/2" MPT inlet connections and outlet configurations with an MPT connection, muffled or free vent. Disc type: 1/2" Standard Preformed Rupture Disc: Pressure: Up to 70% of rated burst pressure Temperature: To 400 F (204 C) Burst pressure: 65 to F (4,48 to C) Material: Silver, Aluminum, Monel, Nickel, Inconel, Hastelloy C * or 316SS Options: Vacuum support, Teflon coating or gasket 11/16" Composite Rupture Disc: Pressure: Up to 80% of rated burst pressure Temperature: To 400 F (204 C) Burst pressure: 30 to F (2,07 to 68,9 22 C) Material: Top Section: 316SS, Monel, Inconel, Nickel or Hastelloy C; other materials available Seal: Teflon or Silver Vacuum support: 316SS or Hastelloy C Holder material: Brass Composite Type Rupture Disc bulletin # Tite-Seal Rupture Disc bulletin #
7 TENSION TYPE GRAFSERT Rupture Disc ICON Rupture Disc Tanksert Rupture Disc Graphite Rupture Disc with armored ring Vent side view Process side view GRAFSERT Rupture Discs are machined from a monolithic piece of graphite and impregnated with phenolic. Graphite discs are corrosive resistant to many chemicals. SPECIFICATIONS Sizes: 1/2" - 24" (13mm - 600mm) diameter Pressure: Up to 80% of rated burst pressure. 90% available in specific static conditions; consult the factory for details Temperature: To 700 F (371 C) Burst pressure: 0.25 to F (0,017 to 49,6 22 C) Service: Gas or liquid Material: Graphite impregnated with phenolic Seat configuration: Flat seat Holder: Installs directly between 150# or 300# ANSI class flanges and equivalent classes DIN or JIS flanges (separate holder not required) Tagging: Stainless steel tag attached Alarm system: B.D.I. Alarm System compatible Options: Coatings, liners, armor ring, vacuum support, gaskets, high temperature assembly The ICON Rupture Disc is a cross-scored, non-fragmenting design solid metal rupture disc specifically designed to protect transportation vessels like intermodal tank containers (common in Europe and Asia), railroad tank cars, tank trucks, and other vessels that transport liquids or gas products. SPECIFICATIONS Sizes: 65mm and 80mm Pressure: Up to 80% of rated burst pressure; full vacuum Standard Burst pressures: 3,67; 4,10 or 4,84 barg at 20 C; other pressures available Service: Liquid or gas Material: Nickel disc standard, with 316SS inlet/ outlet rings; other materials available Option: Teflon liner Seat type: Flat seat Holders: Designed to mount directly to tank flanges Tagging: Stainless steel tag attached The Tanksert Rupture Disc is designed for use on railroad tank cars, over the road tank trucks and other transportable vessels. It is designed to fit both threaded and bolted type Safety Vent Assemblies. Two styles are available: 1. Tanksert Rupture Disc with Bee Screen is used for applications that require protection against bees, insects or other airborne particles from entering the tank after a rupture disc opening has occurred. 2. Tanksert Rupture Disc without bee screen. SPECIFICATIONS Size: 2" to fit Safety Vent Assembly Operating pressure: Up to 80% of rated burst pressure Standard Burst pressures: Stocked and available for immediate shipment in: 25 to 72 F 40 to " " 55 to " " 70 to " " 95 to " " 155 to " " Material: Stainless steel rupture disc components with Teflon seal; Bee screen of #14 or #20 mesh stainless steel Impervious Graphite Rupture Discs bulletin # Icon Rupture Disc technical brief Tanksert Rupture Disc bulletin #
8 REVERSE ACTING ULTRX, MINTRX, STAR X, LOTRX Rupture Discs These scored reverse acting rupture discs are state of the art products utilizing our patented failure initiating indents, a highly accurate manufacturing method to achieve and control a burst pressure at close tolerances, plus a precision semicircular score to provide a clean, consistent opening pattern. ULTRX Rupture Disc MINTRX Rupture Disc STAR X Rupture Disc LOTRX Rupture Disc Sizes: 1" - 12" (25mm - 300mm) diameter Burst pressure: 15 to F (1,03 to 68,9 22 C) Sizes: 1" - 8" (25mm - 200mm) diameter Burst pressure: 20 to F (1,38 to 9,58 22 C) Sizes: 1" - 6" (25mm - 150mm) diameter Burst pressure: 13 to F (0,896 to 9,65 22 C) Sizes: 1" - 8" (25mm - 200mm) diameter Burst pressure: 1.5 to F (0,103 to 2,75 22 C) PROVEN FEATURES INCLUDE: ULTRX operates in GAS, VAPOR or FULL LIQUID service conditions. MINTRX, STAR X, and LOTRX operate in gaseous service conditions consult the factory for liquid service applications. Zero manufacturing range as standard, allowing the disc to be operated to 90% of its rated burst pressure (for burst pressures 40 psig and above. Below 40 psig, operation is to 90% of the lower portion of the burst tolerance range). Safety ratio of 1.5 or less. In the event of rupture disc damage, burst will occur within 1.5 times the rated burst pressure (LOTRX safety ratio: 1.0). Inherent with most reverse acting type of rupture discs on the market, these discs will operate in pressure-to-vacuum cycling applications without an additional vacuum support component, for burst pressures 5 psig (0,34 barg) and above. Encapsulating rings on ULTRX, MINTRX, and LOTRX provide perfect alignment and minimize seal load sensitivity. Three-dimensional stainless steel flow tag provides immediate verification of proper installation. The tag is stainless steel for resistance to corrosion. Designed for non-fragmentation. Unique holder utilizes disc alignment pins to aid proper disc orientation in holder, and a J-Hook to aid proper orientation relative to flow direction between companion flanges. Thicker disc material (than tension type rupture disc of similar burst pressure) adds corrosion resistance. Sizes: Shown above; consult the factory for larger sizes Operating pressure: Pressure: Up to 90% of rated burst pressure (for burst pressures 40 psig and above) Temperature: To 1000 F (538 C) Service: Static, pulsating or cyclic conditions; excellent for use under pressure relief valve Material: Hastelloy C, Inconel, Nickel, Monel, or 316SS; other materials available Tagging:Three dimensional stainless steel flow tag attached to all sizes Manufacturing range: ZERO is standard; -5% or -10% optional Seat configuration: Flat seat Holder: ULTRX, MINTRX, STAR X and LOTRX holders, each with unique alignment pin pattern and J-Hook as standard, or Quick-Change (consult factory for B.D.I. Alarm System with LOTRX Rupture Disc) Options: Rupture Disc: Process side - liner Outlet side - protective cover Holder: Gauge tap, Teflon coating, special gasket surface finish, tantalum lining ULTRX Rupture Disc bulletin # MINTRX Rupture Disc bulletin # STAR X Technical Brief #TB-SRX-0394 LOTRX Technical Brief #TB-LTRX0101 9
9 REVERSE ACTING RCS Rupture Disc Assembly SANITRX Rupture Disc The RCS Rupture Disc is a reverse acting, crossscored, solid metal rupture disc, providing reliable pressure relief protection, easy installation, and retrofit to your pre-existing piping arrangement. Sizes: 1" - 32" (25mm - 800mm) diameter Pressure: Up to 90% of rated burst pressure Temperature: To 1000 F (538 C) Burst pressure: 20 to F (1,38 to 68,9 22 C) Service: Gaseous, static, pulsating or cyclic conditions; may be used under pressure relief valve Material: Nickel, 316SS, Monel, Inconel and Hastelloy C Tagging: Three-dimensional stainless steel flow tag attached to all sizes Seat configuration: Flat seat Holder: RCS Insert Holder Options: Rupture Disc: Process side - Teflon liner Outlet side - protective cover Holder: J-Hook, coatings, special gasket surface finish The SANITRX Rupture Disc is a reverse acting, solid metal rupture disc with Continental s patented failure initiating indents, designed to provide overpressure protection in sanitary environments. Also available, the SANITRX LP Rupture Disc, with lower pressures and a much lower K R factor, available in 1"- 3" (25-80mm) size. Sizes: 1-1/2" - 4" (40mm - 100mm) diameter Pressure: Up to 90% of rated burst pressure Temperature: Rated up to 450 F (232 C), Depending on gasket material Burst pressure: 14 to F (0,965 to 34,5 22 C) Service: Gaseous, static, pulsating or cyclic conditions; may be used under pressure relief valve Material: Disc: Nickel, Monel, 316SS, Inconel, Hastelloy C, Aluminum and Tantalum Gasket: Viton, Buna-N, Silicone, EPDM, PTFE Teflon, and Platinum Cured Silicone Tagging: Three-dimensional stainless steel flow tag attached to all sizes Seat configuration: Flat seat Holder: Designed to install directly between sanitary tube O.D. connections using a sanitary clamping device RCS Rupture Disc Assembly bulletin # SANITRX Rupture Disc bulletin #
10 REVERSE ACTING ZAP Reverse Acting Rupture Disc KBA Reverse Acting Rupture Disc The ZAP Reverse Acting Rupture Disc design utilizes replaceable knife blades in the holder outlet to cut open the rupture disc as reversal occurs. Proven features include: Zero manufacturing range Exceptional cyclic or pulsating service life compared to tension type rupture discs Designed for non-fragmentation May be operated under full vacuum or backpressure to 110% of the rated burst pressure without an additional vacuum support compared to tension type rupture disc Encapsulating rings provide perfect alignment and minimize seal load sensitivity Replaceable knife blades for easy, quick replacement Thicker disc material adds corrosion resistance Sizes: 1" - 8" (25mm - 200mm) diameter Pressure: Up to 90% of rated burst pressure Temperature: To 1000 F (538 C) Burst pressure: 15 to F (1,03 to 68,9 22 C) Service: Gaseous, static, pulsating or cyclic conditions; may be used under pressure relief valve Material: Aluminum, Nickel, Monel, Inconel or 316SS; other materials available Seat configuration: Flat seat Holder: ZAP or QUICK-CHANGE holder Encapsulating rings: 316SS Standard; other materials available Options: Disc: Process side - liner Outlet side - protective cover Holder: Gauge tap, Teflon coating, replacement blade assembly, special gasket surface finish The KBA Reverse Acting Rupture Disc utilizes permanently attached knife blades in the holder outlet to cut open the disc as reversal occurs. Proven features include: Zero manufacturing range Exceptional cyclic or pulsating service life compared to tension type rupture discs Designed for non-fragmentation May operate under full vacuum or backpressure to 110% of the rated burst pressure without an additional vacuum support compared to tension type rupture disc Thicker disc material adds corrosion resistance Permanently attached knife blades Sizes: 1" - 32" (25mm - 800mm) diameter Pressure: Up to 90% of rated burst pressure Temperature: To 1000 F (538 C) Burst pressure: 15 to F (1,03 to 68,9 22 C) Service: Gaseous, static, pulsating or cyclic conditions; may be used under pressure relief valves Material: Aluminum, Nickel, Monel, Inconel or 316SS; other materials available Holder: KBA holder Options: Disc: Process side - liner Outlet side - protective cover Holder: Gauge tap, Teflon coating, special gasket surface finish ZAP & KBA Reverse Acting Rupture Discs bulletin #
11 ULTRA-LOW PRESSURE CAL-VAC Rupture Disc Assembly POS-A-SET Rupture Disc Assembly Insert Style Insert Style Sanitary Style Sanitary Style The CAL-VAC Rupture Disc Assembly is a highly accurate pressure relief device for protecting vessels and equipment against damaging vacuum conditions. Proven features include: Designed to open on vacuum within a 6" water column spread Pressure setting starting at 1" water column Can be operated to within 1" water column or 90%, dependent upon rating Dual directional pressure protection (positive or negative) Designed for non-fragmentation Sizes: Insert Style 3" - 12" (80mm - 300mm) diameter Sanitary Style 3" - 10" (80mm - 250mm) diameter Vacuum Pressure: Up to 90% of minimum vacuum pressure set point or within 1" of water column, whichever is greater Positive pressure: Up to 80% of rated burst pressure Temperature: To 400 F (204 C) Burst pressure: Vacuum: 6" water column spread between 1" to 30" of water column Positive: 2 to 150 psig (0,138-10,3 barg) Seat configuration: Flat seat Holder: Sanitary, insert type or QUICK-CHANGE The POS-A-SET Rupture Disc Assembly is a highly accurate pressure relief device for protecting vessels and equipment against damaging positive pressure conditions. Proven features include: Designed to open on positive pressure within a 6" water column spread Positive pressure setting starting at 1" water column Can be operated to within 1" water column or 90%, dependent upon rating Dual directional pressure protection (positive or negative) Designed for non-fragmentation Sizes: Insert Style 3" - 12" (80mm - 300mm) diameter Sanitary Style 3" - 10" (80mm - 250mm) diameter Positive Pressure: Up to 90% of minimum positive pressure set point or within 1" of water column, whichever is greater Vacuum: Up to 80% of rated pressure in the vacuum direction Temperature: To 400 F (204 C) Burst pressure: Positive: 6" water column spread between 1" to 30" of water column Vacuum: To full vacuum. Seat configuration: Flat seat Holder: Sanitary, insert type or QUICK-CHANGE CAL-VAC / POS-A-SET Rupture Disc Assemblies bulletin #
12 VENT PANELS The C.D.C. Vent Panels are designed to allow full, instantaneous opening, thus minimizing structural or mechanical damage that may be caused by the deflagration of dust, gas or mist. Our Vent Panels feature: Full, instantaneous opening under dynamic or static pressure conditions Designed for non-fragmentation Available in square, rectangular or circular configurations Interchangeable with many existing applications B.D.I. Alarm System compatible Vent Panel Types C.D.C. vent panels are offered in the following types of construction: VP Series: The VP series vent panel is a flat, scored aluminum panel, epoxy coated, for applications requiring protection to as low as 1 psig. This panel may be used for positive pressure or vacuum pulsating conditions. Sizes: Rectangular or Square: 12" x 12" - 44" x 69". (30 cm x 30 cm cm x 175 cm) Circular: 10" - 44" (25 cm cm) diameter Flat panels: Up to 50% of rated burst pressure for positive or vacuum conditions Preformed (prebulged): Up to 80% of rated burst pressure for positive pressure and up to full vacuum Temperature: To 450 F (232 C) Burst pressure: 1 to F (0,069 to 0, C) Service: Gaseous, static, pulsating or cyclic Holder: Lightweight flange construction Alarm system: B.D.I. Alarm System compatible Options: Coatings, vacuum support, dent protector, handling support, gaskets CP Series: The CP series flat composite vent panel is excellent for applications requiring cyclic conditions (positive to negative pressures), low opening pressures and the need for stainless steel construction. SFC and CFC Series: The SFC and CFC series prebulged vent panels are excellent for applications operating up to full vacuum. The SFC series are prebulged, circular, solid aluminum vent panels with a handling or vacuum support. The CFC series are prebulged, circular composite vent panels with a handling or vacuum support, usually made of 316SS and Teflon components. CFR and CFS Series Formed Vent Panels: The CFR (rectangular) and CFS (square) series are prebulged 316SS vent panels with vacuum support and Teflon seal. The CFR and CFS vent panels have an operating ratio of up to 80% of the minimum tagged rating. Vent Panels bulletin # Formed Vent Panels bulletin #
13 B.D.I. ALARM SYSTEM The Continental Disc state of the art B.D.I. Alarm System is designed specifically for use with Continental rupture discs or vent panels. The B.D.I. Alarm System consists of an alarm strip, interfaced with a monitoring unit, computer, annunciator panel, control panel or other equipment. The alarm system is activated by the opening of a rupture disc or vent panel. The B.D.I. Alarm System is a normally closed, low-powered circuit. When a rupture disc opens, the alarm strip is severed, interrupting the circuit which activates a monitoring device. This device is used to signal that an overpressure condition has occurred and that media is venting. Proven features include: Signals instantly when a rupture disc or vent panel has opened. Positive signal of fugitive emissions and/or the occurrence of an overpressure relief condition. Signals emergency equipment, control room and/or operating personnel to alter or stop a process. Prevents an undetected open vent line once an overpressure condition occurs. The B.D.I. Alarm may be used on the following C.D.C. products: Tension type rupture discs Standard Composite (30 Seat or Flat Seat) MICRO X scored ENVIRO-SEAL Graphite Reverse acting rupture discs ULTRX MINTRX STAR X LOTRX (3" and larger sizes) SANITRX SANITRX LP RCS ZAP KBA Ultralow pressure rupture discs CAL-VAC POS-A-SET Vent Panels B.D.I. Alarm Strip operating limits: Maximum current: 50 milliamps Maximum voltage: 24 VDC RMS Temperature: -40 F to 400 F (-40 C to 206 C) Monitor operating limits: Power source: 115 / 50 / 60 Hz or 24 or 12 VDC ±1 volt Output relay contacts rating: 2 V resistive V inductive 2 24 V inductive Operating temperature range: To 122 F (50 C) Construction: The standard monitor unit has a NEMA 1 wall mounted enclosure. Enclosures are available for other NEMA classifications. Models SB-100, BB-100, BB-400 and MTB-700 are intrinsically safe designs. Monitors specifically designed to meet special requirements are available. MTB-700 meets several international standards for intrinsically safe design. B.D.I. Alarm System bulletin #
14 SPECIAL ASSEMBLIES Solutions...for Tough Pressure Relief Problems Whether it s from the standard product line, or a custom-manufactured rupture disc for a one-of-a-kind application, Continental Disc Corporation has built a 40-year reputation for solving the toughest pressure relief problems. For OEM s. Defense Industries. Space exploration program. Aircraft and aerospace manufacturers. The chemical and petrochemical industries. Food processors. The electronics industry. And countless more. Problem Solving Continental Disc Corporation s custom manufacturing capabilities have been tapped for such wide-ranging projects as air conditioning units, oxygen supply systems, aircraft ejection seats, sonabouys, and the space shuttle. The same engineering, testing, and manufacturing talent that has solved one-of-a-kind problems for worldwide industries is now available to deliver innovative solutions for your specific pressure relief problems. Working With Specialized Technologies...Like Yours Solving pressure relief problems for you is the special role played by C.D.C. s Product Development Group and the Special Products Group. This pool of product development expertise has been retrofitting C.D.C. products into clients systems for over 40 years. They are engineers who are at home with special or exotic materials, ultrahigh or ultralow burst pressures, as well as state-of-the-art processing and testing requirements. Whether your needs are for quantities of one or one thousand, Continental Disc is ready to solve your pressure relief problems. Contact our Corporate Office in Liberty, Missouri, or one of our international offices located in The Netherlands, Germany and the United Kingdom. CUSTOMIZED Pressure Relief Products bulletin #
15 RUPTURE DISC HOLDERS C.D.C. holders are available in a variety of types and styles to meet your needs. The product chart, as shown on pages 18, 19 and 20, shows which disc may be used in specific holders, and the holder options which are available. C.D.C. offers an extensive line of holders including: Insert Bolted Screw Type Union Type CLEAN-SWEEP Sanitary Holders QUICK-CHANGE holders Consult your C.D.C. representative or the factory for those applications needing additional features or modification. Insert Holders Insert type rupture disc holders are flat faced assemblies that fit between two ANSI, DIN, JIS or BSI companion flanges, as shown in the photograph above. Insert holders to fit other standards are available. These holders are designed for eleven different rupture disc styles, described in paragraphs 1 through 6 below. Common features of C.D.C. s Insert Holders include: Fit within companion flange bolts, allowing easy installation and removal Preassembly clips are standard and provide means to assemble the rupture disc and holder together before installation in piping system Stainless steel flow direction nameplates permanently attached to the holder Stainless steel customer identification tag permanently attached 1. 7I Insert holders, designed for Standard and Composite rupture discs, are available in 30 light or heavy lip configurations, dependent upon size. 2. The UNISERT Insert holder has a flat seat configuration for use with either a MICRO X or Composite flat seat rupture disc. Holder alignment pins and matching notches in the rupture disc provide correct rupture disc orientation in the holder. A J-Hook, along with flow direction arrows on the nameplate, aids in proper assembly installation between the companion flanges. 3. The RHI Insert holder has a flat seat configuration for use with either a MICRO X or Composite flat seat rupture disc. The minimal overall height of the assembly allows installation in tight piping arrangements, and retrofit in many existing installations, while still providing the benefits and features of the Continental flat seat rupture disc design (see UNISERT). 4. The ULTRX, MINTRX, STAR X, and LOTRX Insert holders are designed with either a tapered or flat raised seat on the holder inlet. This design allows a uniform seal load on the mating rupture disc. Each holder has a number of round and/or oblong pins and the mating rupture disc is identically notched, providing proper rupture disc orientation in the holder. A J-Hook and flow direction arrows on the nameplates aid in the correct assembly orientation between companion flanges. 5. The ZAP and KBA Insert holders have an integral mating interlock device which correctly orients the holder inlet and outlet with respect to each other. The ZAP Holder is available with either a replaceable or permanently welded knife blade assembly. The KBA Holder comes with permanently welded knife blades. 6. The RCS Insert holder is designed for simplicity and safety of installation with superior sealing capabilities. Three round pins located in the holder inlet and matching holes in the RCS Rupture Disc provide correct rupture disc and flow direction orientation. A tapered seat configuration allows a uniform seal load on the rupture disc. Full Bolted Holders Full Bolted Holders do not need companion flanges. The proper seat configuration is machined directly into the flange. Full bolted holders are available in 30 light or heavy lip seat 16 configurations, dependent upon size. Welded, threaded or flat faced inlets and outlets are available. Stainless steel flow directional nameplates are provided. Screw Type Holders Screw Type Holders are available for pressures ranging up to 20,000 psig. The Screw Type holder is supplied with 1/4" or 1/2" MPT inlet threads in combination with MPT, free or muffled outlets. The 1/2" Standard and 11/16" Composite Rupture Disc are used in these holders. Special high pressure designs are available. Union Holders Union Holders are available for pressure ranges up to 6000 psig, depending on disc size. All sizes are available with threaded or welded inlets in combination with threaded, welded or muffled outlets. Special unions are available. Sealing Capabilities Continental s holder designs provide superior sealing capabilities to prevent product loss or contamination. The tapered seat configuration of Continental s UNISERT, RHI, ULTRX, MINTRX, STAR X and RCS holders outperforms other, similar designs, without the need for pretorque arrangements. A pretorque-able holder is available for those customers whose specifications require it.
16 RUPTURE DISC HOLDERS CLEAN-SWEEP Rupture Disc Holder Sanitary Holder QUICK-CHANGE Holder The CLEAN-SWEEP Holder is designed for systems handling viscous media processes, particularly where product build-up in a piping system may cause excessive overpressure conditions. This holder is an ideal replacement for rupture discs installed off the leg of a pipe tee where product build-up could affect the proper operation of the rupture disc. The CLEAN-SWEEP Holder body is specifically designed for a rupture disc. The rupture disc is mounted directly on the holder body adjacent to the process flow. Compared to other designs, the CLEAN-SWEEP greatly reduces the possibility of product build-up under the rupture disc and it is available for pressures up to 1440 psig (99,3 barg). The C.D.C. Sanitary Rupture Disc Assembly is specifically suited for a wide range of process applications where product purity and corrosion resistance are required. These assemblies are used in dairy, distilling, brewery, food processing, pharmaceutical, canning, cosmetic, petrochemical and many other industries. The complete assembly consists of a rupture disc, the sanitary holder and a quick release clamp. The holders are offered in straight-through, reducing or self-cleaning configurations and are available for CAL-VAC, POS-A-SET, Composite flat seat and MICRO X rupture discs. Features include: Sanitary clamp connections for easy, quick installation and removal from a system Secure, leak-tight assembly Sizes 1" - 10" (25mm - 250mm) Available with No. 4 finish or electro polished internal, wetted surfaces Versatile configurations to suit many piping arrangements CAL-VAC and POS-A-SET sanitary holders may be built to 3-A standards. The QUICK-CHANGE Holder allows fast, easy rupture disc changeout from a system, without having to remove a pressure relief valve or outlet piping. The QUICK-CHANGE rupture disc cartridge slips out of the permanently mounted housing and is replaced by a second preassembled cartridge in seconds. The QUICK-CHANGE system: Reduces costly downtime to a minimum. Allows rupture disc replacement without having to disassemble the outlet piping. Size: 1-1/2" - 14" (40mm - 350mm) Flange Class: ANSI 150# or 300#; Lightweight design available; Consult factory for details Material: Carbon steel, 300 series stainless steel; other materials on request Rupture Disc: Compatible with C.D.C. tension type or reverse acting type rupture discs Alarm System: B.D.I. Alarm System compatible CLEAN-SWEEP Rupture Disc Assembly bulletin # SANITARY Fitting Assembly bulletin # CAL-VAC/ POS-A-SET Rupture Disc Assemblies bulletin # QUICK-CHANGE Contact factory for further information 17
17 PROCESS ENVIRONMENT SIZE BURST PRESSURE RANGE MANUFACTURING RANGE VACUUM SUPPORT REQUIRED TO WITHSTAND FULL VACUUM ALUMINUM MONEL INCONEL STANDARD MATERIALS** NICKEL 316SS HASTELLOY C-276 TANTALUM GRAPHITE CONTINENTAL RUPTURE DISC TYPE & BULLETIN No. FLOW DIRECTION UNION INSERT FULL BOLTED COMPATIBLE HOLDERS CLEAN-SWEEP TITE-SEAL SCREW TYPE QUICK-CHANGE SANITARY RECOMMENDED FOR ISOLATION OF SAFETY RELIEF VALVE YES NO AVAILABLE Burst Disc Indicator (B.D.I.) (1 inch and above) Ref. Bulletin No AVAILABLE ASME Certification Liquid or Gas RECOMMENDED MAX. OPERATING TO BURST PRESSURE RATIO 1/4" - 30" 3-80,000 psig 70% Standard Yes 6mm - 750mm 0, barg 3/4, 1/2 1/4 STANDARD 30 No Liquid or Gas 1" - 30" psig 80% Standard Yes 25mm - 750mm 0,138-99,3 barg 3/4, 1/2 1/4 COMPOSITE 30 No Liquid or Gas 11/16" - 36" psig 80% Standard Yes 17,5mm - 900mm 0,138-99,3 barg 3/4, 1/2 1/4 COMPOSITE FS No Liquid or Gas 1" - 36" psig 80% Standard No* 25mm - 900mm 1, barg -5% -10% MICRO X No Liquid or Gas 1" - 12" psig 90% ZERO No mm 1,03-68,9 barg -5% -10% ULTRX No Gas consult the factory for liquid applications 1" - 8" psig 90% ZERO No 25mm - 200mm 1,38-9,58 barg -5% -10% MINTRX No Gas consult the factory for liquid applications 1" - 6" psig 90% ZERO No 25mm - 150mm 0,896-9,65 barg -5% -10% STAR X TB-SRX-0394 Gas consult the factory for liquid applications 1" - 8" psig 90% ZERO No* 25mm - 200mm 0,103-2,75 barg -5% -10% LOTRX TB-LTRX0101 (3" - 8" size) Gas 1" - 8" psig 90% ZERO No 25mm - 200mm 1,03-68,9 barg ZAP No Gas 1" - 32" psig 90% ZERO No 25mm - 800mm 1,03-68,9 barg KBA No Gas 1" - 32" psig 90% ZERO No 25mm - 800mm 1,38-68,9 barg -5% -10% RCS TM No Liquid or Gas 3" - 12" 1 inch - 30 inch Within1 inch 6 inch NOT 80mm - 300mm water W.C. of water applicable column column min. setting min/max CAL-VAC No Liquid or Gas 6 inch 3" - 12" 1 inch - 30 inch Within 1 inch NOT water 80mm - 300mm water W.C. of column applicable column min. setting min/max POS-A-SET No Gas consult the factory for liquid applications 1" - 4" psig 90% ZERO No* 25mm - 100mm 0,690-34,5 barg -5% -10% SANITRX No SANITRX LP TB-SNXL-0403 No holder required. Installs between standard sanitary ferrules. Liquid or Gas 2" - 36" 1-59 psig 50% Min/Max No* 50mm - 900mm 0,069-4,07 barg ENVIRO-SEAL No No holder required. Bolts between standard bore companion flanges. Downstream Only Liquid or Gas 1/2" - 24" psig 80% Standard No* 13mm - 600mm 0,017-49,6 barg GRAFSERT No No holder required. Bolts between companion flanges. *Dependent upon burst pressure. **Materials not indicated or shown may be available by special design. Contact the factory.
18 VENT PANELS provide instantaneous overpressure relief to minimize structural or mechanical damage that may be caused by expanding gases as a result of deflagration of dust, gases or mists. These panels are available in a wide variety of styles, configurations and materials. Refer to page 13 for further information. TITE-SEAL and SCREW TYPE Assemblies are complete rupture disc and holder units specifically designed for use on pressurized mini systems. These units provide dependable, instantaneous overpressure relief. The TITE-SEAL is a disposable design. The SCREW TYPE assembly is reusable. Each design is available with a variety of rupture discs including tension and reverse acting types. Refer to pages 7 and 16 for further information. The ICON Rupture Disc is a cross-scored, non-fragmenting design rupture disc specifically for protection of intermodal tank containers. It is available in 65mm and 80mm sizes and conforms to IMO, ADR, RID, DOT and ISO standards. Refer to page 8 for further information. The TANKSERT Rupture Disc is for railroad tank car service, is available in a full range of standard burst pressures and conforms with ICC regulations. Refer to page 8 for further information. For additional information, please check the appropriate product categories and fill in your address. Thank you. TENSION TYPE Rupture Discs G STANDARD rupture disc G COMPOSITE rupture disc G MICRO X rupture disc G COMPOSITE FLAT SEAT rupture disc G ENVIRO-SEAL rupture disc G TITE-SEAL rupture disc G GRAPHITE rupture disc G ICON rupture disc G TANKSERT rupture disc TENSION TYPE Disc Holders G INSERT holder G FULL BOLTED holder G SCREW TYPE holder G UNION TYPE holder G CLEAN SWEEP holder G SANITARY holder REVERSE ACTING Rupture Discs / Holders G ULTRX rupture disc G MINTRX rupture disc G STAR X rupture disc G LOTRX rupture disc G RCS rupture disc G SANITRX rupture disc G ZAP reverse acting rupture disc G KBA reverse acting rupture disc ULTRA-LOW PRESSURE Rupture Discs / Holders G CAL-VAC rupture disc assembly G POS-A-SET rupture disc assembly VENT PANELS G RECTANGULAR OR SQUARE vent panels G CIRCULAR vent panels QUICK-CHANGE Holder G QUICK-CHANGE holder ALARM SYSTEM G B.D.I. ALARM SYSTEM CERTIFICATION G ASME CERTIFICATION Please have a Continental Disc Corporation Representative call. Yes G No G NAME TITLE COMPANY ADDRESS CITY STATE ZIP COUNTRY POSTAL CODE TELEPHONE NO. FAX NO.
19 Continental Disc Corporation has representatives located throughout the world. Contact the C.D.C. office nearest you for the authorized representative in your area. CORPORATE HEADQUARTERS Continental Disc Corporation 3160 W. Heartland Drive Liberty, Missouri USA A Siegel-Robert Company Pressure Equipment Directive Available When Specified ASME Code Symbol Stamp Available When Specified China Manufacture License Available When Specified Phone: (816) FAX: (816) / [email protected] Website: THE NETHERLANDS GERMANY UNITED KINGDOM CHINA DUBAI Continental Disc Corporation Energieweg NJ Zoeterwoude-Rijndijk The Netherlands Phone: + (31) FAX: + (31) [email protected] Continental Disc Deutschland GmbH Virmondstrasse Willich Germany Phone: + (49) FAX: + (49) [email protected] Continental Disc UK Ltd. Unit C, The Business Centre Faringdon Avenue, Harold Hill, Romford Essex RM3 8EN United Kingdom Phone: + (44) FAX: + (44) [email protected] Continental Disc Corporation 2026 The Executive Center 20/F The Center 989 Changle Rd. Shanghai, P.R. China Phone: + (86) Fax: + (86) Mobile: + (86) [email protected] Continental Disc Corporation P.O. Box 2234 Dubai, U.A.E. Phone: + (971) Fax: + (971) Mobile: + (971) [email protected] Continental Disc Corporation reserves the right to alter the information in this publication without notice. Reproduction without written permission prohibited Continental Disc Corporation Printed in U.S.A CD STAMP Continental Disc Corporation 3160 W. Heartland Drive Liberty, MO USA ATTENTION: Marketing
20 ALL GAS / LIQUID HANDLING SYSTEMS, I.E....CHEMICAL PETROCHEMICAL PETROLEUM REFINING FOOD PROCESSING BREWING LIQUID STORAGE POWDER BULK STORAGE RAILROAD TANK CARS INTERMODAL TANK CONTAINER PULP & PAPER PROCESSING COMMERCIAL AVIATION AEROSPACE PHARMACEUTICAL BIO-TECHNOLOGY O.E.M. DUST COLLECTION SYSTEMS
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