Extruder Pressure Plugs (Burst Plugs/Rupture Disk)



See Below for Pressure Plug Datasheets

SKU: Pressure Plugs

Model Number Length & Configuration *

Mounting Thread *

Burst Pressure *



Extruder Pressure Plugs (Burst Plugs/Rupture Disk)

Extruder pressure 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.


Extruder pressure plug 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 offer 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”.

Non-Standard Extruder Pressure Plugs (Burst Plugs/Rupture Disk) 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 Pressure Plug to meet your specific requirements.

Please Call 800-852-8324 for assistance.

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Extruder Plugs Specifications:

1/2-20 UNF Extruder Pressure Plug Data Sheet

3/4-16 UNF Extruder Pressure Plug Data Sheet

5/8 X 11 NC Extruder Rupture Disc Data Sheet

M18 X 1.5 Extruder Pressure Plug Data Sheet

RD2 Datasheet (PDF)

RD2-3/4 Mounting Thread Datasheet (PDF)

RD3H Datasheet (PDF)

RD6H Datasheet (PDF)

RD6H-5/8 Mounting Thread Datasheet (PDF)

RD6H-3/4 Mounting Thread Datasheet (PDF)

RD6H-M18 Mounting Thread Datasheet (PDF)

RD9H Datasheet (PDF)

RD12H Datasheet (PDF)

Additional information

Weight 1 lbs
Dimensions 5 × 5 × 3 in

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