Suction hatch for suction anchor installation / retrieval
SubseaDesign suction hatches are highly efficient during the subsea operation. It is supplied prepared for welding into suction anchor top and can be delivered with pipe outlet to interface with a suction system. It can also be delivered with integrated suction stab receptacle.
features and benefits
- ROV friendly operation
- Integrated locking mechanism
- Sealing arrangement accepts both suction and overpressure
- Compact design
interfaces
- Prepared for welding into suction anchor top
- Can be delivered with pipe outlet to interface with suction system
- Can be delivered with integrated suction stab receptacle
- Can be delivered with anodes to protect hatch for the service life
- Delivered with electrical strapping
SUCTION HATCH models
⌀ 660 mm, 6 bar
⌀ 914 mm, 6 bar
⌀ 762 mm, 10 bar
⌀ 610 mm, 12 bar
⌀ 660 mm, 20 bar
Technical data
| Design code | ISO 13628 |
| Size | 24 inch |
| Height | 814 mm |
| Width | 883 mm |
| Length | 883 mm |
| Weight | 300 kg |
| Design suction pressure | 12 bar |
| Design over pressure | 12 bar |
| Max. water depth | No limitation |
| Lifetime | 25 years |
| Coating | Typical Norsok system 7, or as required |
how it works
During installation the hatch lid is not installed. After suction anchor landing and self-penetration, the lid will be lowered into place using the vessel crane wire. Once the lid is in place the ROV turns the handle and activates the locking mechanism.
During suction anchor retrieval the ROV connects the crane wire and opens the locking mechanism.
The lid is then removed.
Document | Download link |
|---|---|
Product datasheet | click here |
