ACTUATOR TYPE: Subsea
Removal Systems
FAST BOLTING DIVER RETRIEVABLE SYSTEM
MAIN FEATURES:
- Coupling between spool piece and operator guaranteed by diver operated fast bolts
- Actuator locked and kept in position on the valve by easily rotating two levers placed on valve/actuator interface
- Fast bolting operated from unlocked to locked position and vice versa by diver
- Misalignment prevention between operator and spool piece guaranteed by a system of asymmetric dowels and anti-rotation pins
- Automatic clutch for removal and reinstallation on the valve independently from valve position
- Seawater resistant materials for all exposed parts
PERMANENT SPOOL (FAST BOLTING)
- Easily externally adjustable stops for perfect valve bore alignment
- Misalignment prevention between operator and spool piece guaranteed by a system of asymmetric dowels and anti-rotation pins
- Centring pin for easy alignment with operator clutch
- Stem teeth design including lateral slope angle to ease and smooth the disengagement operation
- Equipped with relief valve acting as overpressure venting device and accumulator acting as pressure compensation device
- Seawater resistant materials for all exposed parts
- Additional port for spool cavity flushing and filling with compensation oil
FAST BOLTING INSTALLATION SEQUENCE
- Actuator can be removed and reinstalled on the valve with a simple diver operation, independently from valve position
- Actuator self engages after subsea installation and automatically matches valve stem after first operation
- During first operation of the actuator, the clutch stem on actuator rotates independently from the clutch stem on spool until teeth and slots on the two pieces are aligned
- As soon as teeth and slots are aligned, the clutch spring pushes the clutch stem on actuator and it engages with the clutch stem on spool
.jpg)
