LPS™ Rupture Disk (Bursting Disc) Material Options
The LPS™ Rupture Disk (Bursting Disc) is available in a range of corrosion resistant materials. Standard disk materials are Nickel alloy 200, Stainless Steel grade 316, Monel® (Nickel alloy 400), Inconel® (Nickel alloy 600), Hastelloy® C-276, & Tantalum. The LPS™ Rupture Disk (Bursting Disc) includes an outlet side hinge to control fragmentation. Standard disk hinge material is Stainless Steel grade 316 with alternates available upon request. Fluoropolymer film liners are offered with the type LPS™ Rupture Disk (Bursting Disc) at burst pressures of 35 psig (2.4 barg) and higher. All standard disks are available with 0%, 5%, and 10% manufacturing ranges.
Cycle Resistance / Temperature Influence / Service Life
Cycle and service life for every rupture disk (bursting disc) depends upon its unique application operating conditions. It is particularly important to allow for the temperature's influence on burst pressure; if the rated burst temperature of the disk is selected too low, a higher actual temperature may reduce the disk burst pressure. Seek advice from BS&B Safety Systems regarding rated burst temperature. Other application factors including corrosion, erosion, abrasion, product build-up and vibration, affect the service life of a rupture disk (bursting disc) and must be considered by the user.
Installation in SRB-7RS™ Safety Head
The LPS™ Rupture Disk (Bursting Disc) installed in an SRB-7RS™ Safety Head permits the correct torque to be applied in the workshop before installation into the process. The asymmetric locating pins ensure centering and orientation of the disk within the safety head. The performance-proven metal-to-metal "bite-type" seal in the safety head (2 in/50 mm size and above) assures a leak-tight assembly. When installed properly into the SRB-7RS Safety Head, the assembly can be removed, inspected, cleaned carefully then reinstalled without replacing the disk as the pre-torqued cap screws maintain the clamp load on the disk.
Note: LPS™ Rupture Disk (Bursting Disc) petal is retained by the interaction of the disk hinge and the SRB-7RS™ Safety Head.