Sigma™ and Sigma EXL™
Enhanced Performance Reverse Buckling Disk
Disk Sizes: 1-12 inches (25-300mm)
Burst Pressures: 15-500 psig (1-34.5barg)
Material: *Standard, except aluminum
Service Phase: Gas or liquid
SKR™
Low Flow Resistance Reverse Buckling Disk
Disk Sizes: 1-12 inches (25-300mm)
Burst Pressures: 15-500 psig (1-34.5barg)
Material: *Standard, except aluminum
Service Phase: Gas or liquid
LPS™
Non Scored Low Pressure Reverse Buckling Disk
Disk Sizes: 1-12 inches (25-300mm)
Burst Pressures: 15-500 psig (1-34.5barg)
Material: *Standard, except aluminum
Service Phase: Gas or liquid
SRD™/SRD-L™
Precision Circular-Scored Reverse Buckling Rupture Disk
Disk Sizes: 1-12 inches (25-300mm)
Burst Pressures: 15-500 psig (1-34.5barg)
Material: *Standard, except aluminum
Service Phase: Gas or liquid
S-90™
Cross Scored Medium to High Pressure Reverse Buckling Disk
Disk Sizes: 1-12 inches (25-300mm)
Burst Pressures: 15-500 psig (1-34.5barg)
Material: *Standard, except aluminum
Service Phase: Gas or liquid
RLS™
Medium to High Pressure Scored Reverse Buckling Disk
Disk Sizes: 1-12 inches (25-300mm)
Burst Pressures: 15-500 psig (1-34.5barg)
Material: *Standard, except aluminum
Service Phase: Gas or liquid
JRS™
Non Scored Low Pressure Reverse Buckling Disk
Disk Sizes: 1-12 inches (25-300mm)
Burst Pressures: 15-500 psig (1-34.5barg)
Material: *Standard, except aluminum
Service Phase: Gas or liquid
FRS™ /FRL™
High Cycling Frustum Reverse Buckling Disk
Disk Sizes: 1-12 inches (25-300mm)
Burst Pressures: 15-500 psig (1-34.5barg)
Material: *Standard, except aluminum
Service Phase: Gas or liquid
For more details and comparison: Download RDD Quick reference guide
* Standard materials: aluminum, nickel alloy 200, Inconel® alloy 600, Monel®
alloy 400, 316L ss, Hastelloy® alloy
C-276, tantalum, titanium, Hastelloy® alloy C-22, Inconel® alloy 625,
niobium.