Exceeds API Spec 14A requirements for flapper leakage, hydraulic integrity, and slam closure
GeoGuard deepwater safety valves are not only designed to API Spec 14A—their performance exceeds the certification requirements:
- For flapper leakage, API Spec 14A allows up to 5 ft3/min. The acceptance criteria for GeoGuard valve flapper systems is bubble tight.
- For hydraulic actuator integrity, API Spec 14A allows up to 5% drop in applied hydraulic pressure. For a 10,000-psi hydraulic pressure, the acceptable leak rate is 500 psi. GeoGuard actuators are tested to less than 1% of that criteria.
- For slam closure, the flapper system of the GeoGuard valve has been successfully slam tested to over 500 ft/s. This is more than 5 times the Annex K requirements of API Spec 14A.