The Poseidon PRV Module was developed for a client to protect  flexible flow lines and Capping Stacks from over-pressurization.  Burst disc assemblies have been used for years but present a challenge when ruptured as the burst disc assembly had to be pulled topside and a new burst disc installed.   This required a shut in and the result is seawater ingress and likely formation of hydrates.   

 

The Poseidon PRVModule is designed to "burp" pressure and reset and reseal leak tight preventing shut ins and seawater ingress.   The PRV module has multiple levels of redundancy while also offering mechanical overrides via class IV ROV interface.