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ENVIRO-SEAL™ Rupture Disc

ENVIRO-SEAL™ Rupture Disc
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ENVIRO-SEAL™ Rupture Disc

Product catalog summary
Introduction to Composite Type Rupture Discs
A Composite Type Rupture Disc is a pressure relief device designed to protect systems from overpressure. Continental's discs offer immediate pressure relief and come in preformed and flat styles.
Preformed Composite Rupture Disc
These discs consist of metallic or non-metallic materials, featuring a metallic top and a seal member. They perform well in low-pressure applications, operate up to 80% of the rated burst pressure, and are non-fragmenting with a non-metallic seal. They are suitable for use under safety relief valves and are available in corrosion-resistant materials.
Patented Seven-Hole Design
The design enhances non-fragmenting characteristics and allows thicker materials while maintaining a high operating-to-burst-pressure ratio.
Recommended Operating Conditions
These discs can operate at up to 80% of their rated burst pressure in liquid and gas processes, with sizes from 1" to 30" and burst pressures from 1.5 psig to 1440 psig, tolerating temperatures up to 1000°F.
Seating Configurations and Corrosion Protection
Available in "Light Lip" and "Flat Seat" designs, these discs use corrosion-resistant seal materials for economic production of various burst pressures.
Additional Features
Options include protective rings, vacuum or backpressure support, and the B.D.I.® Alarm System for immediate pressure relief notification. The Three-Dimensional Flow Direction Tag ensures correct installation.
Types of Preformed Composite Rupture Discs
Types include CDC, CDCV, PL, and PLV, each offering features like vacuum support and corrosion-resistant liners.
B.D.I. Alarm System
This system provides immediate notification of a burst disc through an electrical strip that signals alarms when severed.
Manufacturing Range and Burst Tolerance
The manufacturing range is based on customer-specified burst pressure, with tolerances according to ASME Code.
Specifications
Tables provide detailed information on manufacturing ranges, burst tolerances, and maximum temperatures for various materials.
Overview of ENVIRO-SEAL Rupture Disc
Designed for economical protection of low-pressure storage vessels and isolation of pressure relief valves from corrosive environments.
Features
  • Excellent performance in low-pressure applications.
  • Operates at 50% of the rupture disc's rated burst pressure.
  • Suitable for gaseous or liquid service.
  • Non-fragmenting design.
  • Includes a Three-Dimensional Flow Direction Tag.
Design and Materials
The ENVIRO-SEAL Rupture Disc is a flat composite style disc installed between standard bore flanges, typically made of 316 Stainless Steel, Teflon seals, and a non-asbestos gasket.
Types of ENVIRO-SEAL Rupture Discs
  • Type I: Single-direction burst with a metallic top section on the vent side.
  • Type II: Can burst in both positive and vacuum directions.
  • Type III: Similar to Type II but with two metallic top sections.
Specifications
  • Maximum operating pressure is 50% of the burst rating.
  • Temperature limits: 400°F for Teflon seals and 150°F for Polyethylene seals.
  • Sizes range from 2" to 36".
Holder Types
  • Screw Type Holder: For mini-systems up to 1000 psig.
  • Union Type Holders: For piping connections.
  • Insert Type Holders: For installation within flange bolt circles.
  • Full Bolted Style Holders: For various flange classes and sizes.
Code Compliance
Rupture discs can comply with ASME, ISO, DIN, EN, BSI, JIS, or other codes, with CE marking available for the Pressure Equipment Directive 97/23 EC.
Ordering Information
To select the correct rupture disc and holder, determine specifications such as maximum allowable working pressure, operating pressure and temperature, vacuum/backpressure, cycle conditions, required flow rate, media, and molecular weight/specific gravity. Quality assurance documentation may include code compliance, special cleaning, packaging, and tagging.
Contact Information
Continental Disc Corporation has a global presence with representatives in various countries. The corporate headquarters is located in Liberty, Missouri, USA. Contact details for offices in the Netherlands, Germany, the United Kingdom, China, and Dubai are provided.
Regulatory Compliance
Continental Disc Corporation offers products that comply with various international standards and directives, including the Pressure Equipment Directive, China Manufacture License, and ASME Code Symbol Stamp.
Disclaimer
Continental Disc Corporation reserves the right to alter the information in this publication without notice. Reproduction without written permission is prohibited.
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Catalog excerpts

ENVIRO-SEAL™ Rupture Disc-2

What is a Composite Type Patented Seven-Hole Recommended Rupture Disc? Design Operating Conditions > AComposite Type Rupture Disc is adifferential pressure relief device used to protect pressurized systems, equipment, and vessels from a potentially damaging overpressure condition. Continental's Composite Rupture Discs are designed to provide instantaneous, full-opening pressure relief.Continental Disc offers twoComposite Type rupture disc design styles, a preformed style, like the CDC or PLV Rupture Disc; and a flat style, like C.D.C.'s ENVIRO-SEALRupture Disc. Continental's Preformed CompositeRupture...

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ENVIRO-SEAL™ Rupture Disc-3

Each application has its own uniqueoperating characteristics. Many variables such as pulsations, cycling, and oper- ating-to-burst-pressure ratio must be considered in order to achieve maximum service life from the rupture disc.Versatile operating characteristics,along with numerous customizable options like protective liners, protective rings, vacuum or backpressure support, gaskets, and Continental's exclusive B.D.I. > Protective rings may be used onrupture discs made of thin materials or where delicate seals are used. These rings provide rigidity for easier handling and also help protect the...

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ENVIRO-SEAL™ Rupture Disc-4

Continental Disc manufacturesseveral Preformed Composite RuptureDiscs to fit numerous applications. > The CDCV Type Rupture Disc is thesame design as the CDC Type Rupture Disc, with the addition of a vacuum support installed on the process side of the seal. This design provides process side corrosion protection and support for full vacuum conditions. The PLType Rupture Disc is similarto the CDC type, with the addition of a corrosion resistant Teflon liner placed on the outlet side of the top section.The PLV Type Rupture Disc is thesame design as the PLType Rupture Disc, but with the addition...

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ENVIRO-SEAL™ Rupture Disc-5

Temperature Rating MaterialsѰFCAluminum / Silver260127 Nickel / Monel > Ю *800427316SS900482 Inconel > *1000538FEPTeflon Seal or Lining400204 TFE or PFASeal or Lining500260 > *Monel and Inconel are registered trademarks of the Inco family of companies. >

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ENVIRO-SEAL™ Rupture Disc-8

In addition to the PreformedComposite Rupture Disc, Continental Disc also manufactures a flat composite rupture disc design, the ENVIRO-SEAL Rupture Disc. The ENVIRO-SEAL Rupture Disc is designed to provide economical protection for low pressure atmospheric storage vessels and to isolate the downstream side of pressure relief valves and other equipment from corrosive environments. > Continental Disc manufactures threetypes of ENVIRO-SEALRupture Discs to fit various applications. > The ENVIRO-SEALType III RuptureDisc is also designed to burst in either the positive or vacuum direction at the same...

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ENVIRO-SEAL™ Rupture Disc-10

Continental Disc Corporation'sPreformed Composite Rupture Discs are engineered for use in customized holder configurations as well as various standard designs. > The Full Bolted Style Holder isavailable for ANSI, DIN, or JIS class flanges. Full Bolted holders for Preformed Composite Rupture Discs are available in sizes ranging from 1" through 24" (25mm to 600mm) in the 30 angular seating configuration. Standard materials include Carbon Steel and 304 or 316 Stainless Steel. Special materials are available upon request. For additional information on other sizes or flange classes, please consult...

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ENVIRO-SEAL™ Rupture Disc-13

ENVIRO-SEALRupture Disc: Holder: Quantity:Size:Material: InletOutlet Configuration: (for Screw Type and Union Type Holders)InletOutletThreaded Connection SizeAccessories: (for Insert Type and Full Bolted Holders) Gauge TapՕ Pressure Gauge Nipple and TeeՕ Special Facing: Inlet Outlet Excess Flow ValveՕ Teflon Coating Quantity:Size:Description: ENVIRO-SEALType I, II, or III Rated Burst Pressure: Min / Max/psig or barg @F or аC (Manufacturing range and burst tolerance are included in the burst pressure min / max range) Manufacturing number: (if replacing current Continental rupture disc installed)...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.