THE CHALLENGE
A chemical processing facility is operating a high-temperature process used in the production of anhydrous magnesium chloride. The process media is highly corrosive, and if any leakage occurs, the product will oxidise. This will then require downstream carbon treatment, causing considerable cost and operational disruption. Even minor leaks are therefore unacceptable. Within this environment, it is critical to protect safety relief valves and maintain reliable pressure relief.
The facility is highly experienced in installing rupture disc assemblies upstream of valves. However, at operating temperatures of 500°F, the combination of corrosive media and high temperatures increases the risk of leakage at sealing surfaces.
THE TASK
The facility required a rupture disc solution that could maintain a reliable, leak-tight seal, perform consistently at high temperatures. The solution also needed to withstand corrosive media and offer efficient installation to reduce risk to maintenance teams.
THE SOLUTION
The company chose the LoKr DUO as their preferred solution. Unlike three part assemblies, the LoKr DUO uses a two-piece, cartridge style design that provides a leak tight, welded seal. This design offers an additional layer of protection against leakage compared with conventional assemblies. It also means the disc is simpler to install, meaning maintenance teams spend less time at risk of exposure to corrosive, toxic chemicals.