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MARSTON SRBH Assemblies Bursting Discs The applications for these devices are as diverse as the industries that use them. The selection of the most suitable device can be critical: our extensive range provides the optimum solution. Bursting discs produced by Marston are batch tested in accordance with relevant British or other National and International standards and a certificate is supplied for each batch of discs. SRBH Assemblies are a Reverse Buckling Bursting Discs which has two membranes offering extended service life, particularly within pressure cycling duties. Ideal for relief valve protection. A load-bearing slotted metallic membrane and a weaker, usually fluoropolymer, seal membrane giving a nonfragmenting design suitable for low bursting pressures