High Pressure Rupture Discs


Highly Accurate Over Pressure Protection

In the LDPE process, over pressure protection devices must respond quickly and accurately. Our precision discs are machine lapped to precise thicknesses. With a zero manufacturing tolerance, extremely accurate results are achievable. Discs are qualified precisely at the customer's specified burst pressure at temperature.

Fast Acting

In order to provide rapid response, each disc is prestressed at 97% of rated burst pressure at the customer's operating temperature. 

Various Configurations Available

Discs are welded on to custom designed holders. While direct reactor wall mounting is the most common, block mounting in process lines is also used.  Bolt in sleeve or removable nose configurations are available.

Product Details

Burst Tolerance: +/- 3%

Burst Diameter Range: .125" to 6"

Maximum Burst Pressure:  60,000 psig

Maximum Burst Temperature: 650 F

Disc Material: Inconel 600

Holder Materials: 4140/4340 Alloy steel, 17-4 PH Stainless Steel

Reliable Performance

These rupture disc designs have been used in the LDPE industry for over (50) years. Originally designed, by PPI (Pressure Products Industries), this product is now supported by previous PPI engineers now under Pressure Innovators, LLC.