BS&B Safety Systems 4-140-72-316SS rupture disk is a 4-inch nominal disk engineered for overpressure protection in BS&B safety head assemblies. It ruptures at 140 psig when exposed to 72°F (22°C) and is fabricated from 316 stainless steel, providing corrosion resistance for demanding process environments. The disk carries the part number 4-140-72-316SS and is designed for use in liquid or gas service where a precise, engineered burst pressure is required to safeguard vessels and piping by venting downstream of the disk. When installed in the appropriate BS&B head, it delivers reliable, predictable opening characteristics at the specified temperature and pressure conditions.
