The RA4 reverse acting rupture disks (bursting discs) are designed to cover the majority of low pressure rupture disk (bursting disc) applications and are designed to be used in the RAH Pre-Torque holder.
Operating ratios up to 95% of the low end of burst tolerance
Disk design offers high cycle life
Suitable for liquid, gas, or two-phase applications
Standard manufacturing design range and total tolerance ensures marked rating on disk tag does not exceed the MAWP of equipment
Withstands full vacuum
Wide range of standard and exotic materials available
Sizes from 1” (25mm) through 12” (300mm)
Burst ratings from 2 psig (0.14 barg) to 40 psig (2.76 barg)
Unique alignment pin design ensures proper disk orientation into RAH Series disk holder
3-dimensional stainless steel tag permanently attached and engraved with complete disk specifications
ASME UD, CE (PED), and TÜV compliance available
Specifications
Sizes: 1″ – 12″ (25 mm – 300 mm) Burst Pressure Range: 2 psig – 40 psig (0.14 barg – 2.76 barg) Operating Ratio: Operating ratio up to 95% of the low end of burst tolerance Vacuum Support Required: No
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