Article How It Works: Gate Valves
Stop, allow, or throttle the flow of process fluid with very low friction loss.
API 6A double-acting actuated drilling gate valve
For positive control of gate valves for many drilling applications, Cameron offers the FLS-DAN gate valve. This design is a combination of the field-proven FLS extreme service API 6A slab-style gate valve with a double-acting hydraulic actuator. The FLS gate valve is widely recognized as a high-quality valve for severe service applications. The fullbore, through-conduit FLS-DAN gate valve is available in standard double flange, threaded-end, and special block body configurations.
The gate valve is fitted with a balancing lower stem to work with a double acting hydraulic actuator to provide positive, reliable control through the entire stroke of the valve. Should a failure of hydraulic power occur, this valve will remain in position.