Self-contained emergency shutdown valve is a safety system that is designed to provide reliable valve shutdown capability when an external power source is either not available or not dependable. Using a hand pump with different control parts, a zero leakage circuit is maintained to ensure valve movement does not inadvertently occur until a fail-safe signal is received. Controls are typically pilot tripped, but solenoids can also be utilized for remote control where electricity is available. The control must be manually reset after a fail-safe operation has occurred.
Advantages
1 Easy to Operate
It can directly pressurize and open the valve conveniently in spite of external conditions. Bright red-colored knob on manual valve provides highly visible local verification of system status being tripped.
2 Integrated
All components are integrated on one manifold, with all channel connections among each part designed within the module. The structure is compact, reliable and no leakage even in extreme temperatures. Sub-plate and control components are constructed of corrosion-resistant anodized aluminum with stainless steel internals with IP68 protection.
3 Enclosed System
The whole system adopts volume compensating design, with the hydraulic control loop totally isolated with air, avoiding deterioration or contamination of the hydraulic oil. Especially, this self-contained emergency shutdown valve can be installed at any angle necessary.
4 Fast Trouble Shooting
Specialized troubleshooting design provides a quick self-diagnosis system. With the help of handbook, the site engineer can get the real situation