Suction Hatches


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


Hatch with integrated stab receptacle and electrical strapping for long term service


Technical data

Design codeISO 13628
Pipe size660 mm diameter
Height (open)360 (1198) mm
Width893 mm
Length1138 mm
Weight453 kg
Pressure rating20 bar
Max. water depthNo limitation
CoatingTypical Norsok system 7, or as required

how it works

During installation, the hatch is secured in opened position. After suction anchor landing and self-penetration, the ROV will remove the securing  mechanism. The hatch then closes by freefalling. The ROV will operate the handles to closed position.

During suction anchor retrieval the suction hatch will be opened when the suction anchor is ready to be lifted out of the ground. The operation handles will be released, and the hatch is rotated with the assistance of a lift wire to surface.

Template during installation with SubseaDesign delivered suction hatches
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Product datasheet
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