The Bettis PressureGuard Hydraulic Emergency Shutdown (ESD) System offers dependable valve closure for production wellheads, operating with or without an external power source. This self-contained system ensures secure operations, even in scenarios where power reliability is questionable. Compatible with SCADA systems, it can be adapted for both quarter-turn and linear valves. Its modular construction simplifies maintenance, enhancing adaptability and reliability in safeguarding production processes.