BDI-FLX Burst Disc Sensor System

The BDI-FLX Burst Disc Sensor System provides instantaneous notification of a burst rupture disc. When combined with an alarm monitor, this system protects lives, equipment and the environment.

Designed for use with ASME and DIN flanges or sanitary applications, the BDI-FLX employs a sensor strip with a flexible potentiometer (an electrical component that varies resistance in response to deflection) to signal a burst disc.

How the BDI-FLX Burst Disc Sensor System works

The BDI-FLX Burst Disc Sensor System maintains a continuous signal with an alarm monitor. If the disc bursts, the BDI-FLX Sensor System notifies the alarm monitor by opening the electrical circuit.

Continental Disc Alarm Monitors contain replaceable modules with individual channel relays. Each channel relay connects to one BDI-FLX Sensor System. As the rupture disc bursts and the BDI-FLX Sensor System indicates the event, a specific relay is actuated, sending a signal to the control panel.

  • The BDI-FLX Sensor System can adapt to a variety of warning devices. Control panels, annunciators, light panels or other signaling devices can be used to warn of a ruptured disc
  • Individual relay circuitry allows users to monitor several BDI-FLX Sensor Systems simultaneously
  • The BDI-FLX Sensor System can also notify of overpressure situations when paired with pumps, valves and other systems
  • If the BDI-FLX Sensor System loses power, it defaults to an open circuit

The BDI-FLX Burst Disc Sensor System is available for gas or liquid applications

For full liquid applications, the BDI-FLX Sensor System requires sudden movement to signal. Slow reversal of the rupture disc, such as with liquid thermal expansion, will not cause the BDI-FLX Sensor System to indicate. A small crack in a rupture disc score will not cause the BDI-FLX Sensor System to indicate.

Note that the BDI-FLX Sensor System is designed to indicate within a few milliseconds, so full reversal and full opening of the rupture disc must occur within a few milliseconds. If full liquid flow at set pressure or a gas head will not be present during rupture of disc, contact us for an evaluation.

Nominal Size Range: 1″ – 12″ (25 mm – 300 mm)

Burst Pressure Range: N/A

Recommended Operating Ratio: N/A

Seating Configuration: FS, IS

Service: Liquid or gas

BDI Alarm System Compatible?: N/A

ASME Code Symbol Stamp Available?: No

Industry Applications

Chemical Processing
Chemical Processing
Chemical Processing

Our rupture discs are manufactured with chemical processing in mind – corrosion resistance, leak tightness, high accuracy and durability come standard.

Food & Beverage Processing
Food & Beverage Processing
Food & Beverage Processing

We understand that product purity and safety are critical in food-related industries, so we provide hygienic and aseptic vessels and piping to assure compliance with FDA and 3A requirements.

Oil, Gas & Petrochemical)
Oil & Gas (Petrochemical)
Oil & Gas (Petrochemical)

The hydrocarbon industries require cost-effective system protection with a special focus on reducing fugitive emissions. Our catalog of configurations, materials, burst ratings and sizes make our rupture discs the right choice for these operations.

Pharmaceutical & Biotechnology
Pharmaceutical & Biotechnology
Pharmaceutical & Biotechnology

We focus on solutions to meet the stringent requirements of pharmaceutical processing – wherever perfectly hygienic facilities and hermetically sealed antiseptic systems are a must.

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