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 PRODUCTS - PRECISION “SAFE-SHEAR®” BURST DISC
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Sample of our latest Burst Disc Projects  

 

Hydrodyne will design, manufacture, and test a precision shear diaphragm assembly for your application.  Precision diaphragms are capable of precise and reliable burst point from low pressures on up.

 

Precision Burst Discs:  

Making use of patented belleville snap-over trigger mechanism to achieve extreme accuracy. Diaphragm thickness resists 2 to 3 times the burst set pressure, thus is less subject to fatigue. May be repeatedly pressure cycled up to 98% of set burst pressure without altering performance.

It has been demonstrated that Belleville type burst discs are one order of magnitude more accurate than Frangible type burst discs.

 

Normal Position: System pressure below rupture setting. Bellville spring provides a calculated pre-load by retainer with micrometer precision adjustment. 
During Snap-Over: System pressure at rupture setting. Diaphragm dynamically contacts hollow punch. 
Snap-Over Position: Diaphragm sheared by punch for full flow. Sheared segments travels toward catch screen. 

* Ability to test Burst Pressure on each Unit