CHEMICALS & PHARMACEUTICAL
Innovative sanitary rupture disk optimised for low burst pressure in atmospheric storage systems
By Aaron McIvor, Head of Marketing and Insights, Zotefoams In the Irish food, beverage, pharmaceutical and cosmetics industries, atmospheric
tanks are commonly used to store raw materials, in-process formulations and
T
he term atmospheric refers to vessels designed to operate at or near ambient pressure, meaning the internal pressure
is roughly equal to the surrounding air pressure. In many applications, these tanks must also
comply with strict hygienic standards to prevent contamination and maintain product integrity. Typically constructed from stainless steel engineered with an emphasis on cleanliness,
12 May/June 2026 Irish Manufacturing
enable effective cleaning or sterilisation.
internal pressure, atmospheric tanks are not subject to the same stringent requirements as pressure vessels, which are designed to handle atmospheric levels. Atmospheric tanks typically operate at pressures no greater than 1 psi (0.07 barg).
Nonetheless, pressure remains a critical factor. Even at low levels, atmospheric tanks must be
equipped with proper venting systems to prevent excessive vacuum or overpressure that can arise and emptying cycles. Without proper venting, a tank can collapse under vacuum or rupture due to overpressure. Even normal ambient temperature variations,
particularly in vessels installed outdoors or exposed to daily temperature cycles, can cause
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