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BP520 Series

The Dynisco Model BP520 burst plugs are custom assemblies with pop-top burst indication that are a design option on extruder barrel assemblies. Burst Plugs (also known as rupture disks) are designed for reliable, emergency relief of excess pressure in a system. The Model BP520 is installed on barrel bodies with hex ends, where the hex OD (across flats) is larger than the burst plug body. The metal retainer strap is held in place by the hex and the metal 'T' shaped cap is fastened to the other end of the strip. A 2mm hole is drilled through the body and cap. A burst indicator wire is passed through the hole and when the disk ruptures, the T-cap 'pops open' shearing off the BI wire and indicating a burst to the control system.
  • Each welded assembly consists of a threaded tubular body with a rupture disk welded onto the process end
  • Welded one piece assembly – no degradation of joint strength at elevated temperatures
  • Iconel rupture disk – stable through a wide range of temperatures
  • Burst ratings 750 to 15,000 psig (for higher pressures contact Dynisco)
  • Burst tolerance ±10%
  • Typical Standard Deviation is ±1%
  • 100% leak tested
  • 100% electronic thread verification


ISO 9001 Certificate


Dynisco Product Portfolio

From breakthrough technology in the industry’s most complete line of sensors to renowned quality and performance in indicators, controls, and analytical instruments Dynisco has demonstrated the skill, experience and know-how that not only deliver the right solution for your unique application, but also provide unparalleled customer support.


BP520 Series


Dynisco Online Shop Overview

Dynisco’s Online Shop is where you can have access to ordering all Dynisco parts from Polymer Testing Equipment to Sensors to accessories- all to optimize your application.

Sensor Portfolio Overview

At Dynisco, we offer a diverse portfolio of pressure transducers for your unique application. Whether you're looking for industry-leading accuracy and pressure capability, sustainability without sacrificing performance, or reliability on a budget, our sensors can be configured to fit your specific niche.

Have A Question? Ask a Dynisco expert for more information.

  • Dynisco

    38 Forge Parkway,
    Franklin MA 02038

    +1 508 541 9400  

  • Dynisco Europe GmbH

    Pfaffenstr. 21, 74078,
    Heilbronn, Germany

    +49 7131 297 0

  • Dynisco-Viatran Instrument Sdn Bhd

    Lot 3615, Jalan SM 6/8
    32040 Seri Manjung, Perak, Malaysia     

    +605 6884014