Burst Indication Extruder Rupture Disk Option with Thermocouple Jack Burst Plug


SKU: Burst Indication

Dimensions-Length/Burst Indication with Thermocouple Jack *

Mounting Thread *

Call if you need these threads: 3/4”-16NC, 5/8”-11NC, M18x1.5, M14x1.5 (800-852-8324)

Burst Pressure *

Call if your Pressure is not listed (800-852-8324)


Burst Indication Extruder Rupture Disk Option with Thermocouple Jack Burst Plug

Burst Indication Datasheet (PDF)

Spec Sheet (PDF)

Extruder Rupture Disk with Burst Indication (option – BI) offers an inexpensive signal output when the disk ruptures (plug is fitted at the discharge end).  A small hole if drilled through the hex head where a small diameter Teflon insulated signal wire is placed through. When a rupture disc discharges, plastic flow causes the plug to pop out and shear the signal wire. This sheared wire can be used to send a signal to the control system to shut the extruder down.


Extruder rupture disk offer standard features such as:
  • Inconel end disk for consistent rupture over a wide temp range.
  • 750°F (400°C) temp rating – optional up to 1000°F (535°C)
  • 5% accuracy
  • Stock ranges from 1500 – 15000psi



  • Discharge Threads:  1/2″ NPT (Call if you need these threads  3/4”-16NC, 5/8”-11NC, M18x1.5, M14x1.5)
  • Custom Tip Dimensions (Call for Pricing 800-852-8324)

Rupture Disk Extruder (Burst Plugs)

Rupture Disk Extruder (Burst Plugs) are primarily used on Plastics Extrusion Machinery to provide emergency pressure relief. They are designed to instantaneously rupture at a pre-determined pressure. They are leak tight and intrinsically safe devices that require no maintenance.

Burst Plugs assemblies are manufactured from 304 SS and incorporate either an Inconel or Stainless Steel Disk which minimize the affects of varying processing temperatures. The RD Series of Burst Plugs are offered in a wide variety of lengths and configurations. Standard stock assemblies are available in burst pressures ranging from 1,500 up to 15,000 psi, and lengths from 1.82” up to 12”.

Several different mounting threads are offered on the RD Series Burst Plugs that are commonly found on plastics extrusion machinery.

Non-Standard Extruder (Burst Plug) Mounting Thread

If you don’t find the mounting thread style you require from our list of standard configurations shown above, in-house engineering and manufacturing expertise enable us to provide you with virtually any extruder rupture disk (burst plug) to meet your specific requirements.

Additional information

Weight 2 lbs
Dimensions 13 × 11 × 2 in

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