Rohner for Offshore and LNG Modules
Offshore and LNG module finishing involves large fabricated frames, pipe racks, equipment skids, stair towers and enclosure assemblies that often need protective coating before final integration. Rohner equipment in these areas can include large equipment booths, blast rooms, paint mixing rooms, make-up air and exhaust systems. Double D Mechanical handles the installation, relocation and service work around the mechanical and utility connections that support those finishing operations.
Discuss your installationBrand names identify the equipment discussed. Discuss your equipment model and installation scope with Double D; manufacturer authorization is not implied.
Module Envelope And Lift Paths
Module work should be planned from the actual largest assembly, including transport frames, lift points, temporary bracing and access platforms. Booth or blast room placement needs to preserve crane, forklift or transporter movement and leave room for coating around braces, pipe supports and tight corners.
Coating Flow For Fabrication Bays
Raw fabrication, weld cleanup, blast, mask, prime, topcoat and inspection may all compete for space in the same bay. The finishing layout should minimize movement of cleaned steel through dusty work zones. Double D Mechanical can coordinate equipment setting, ductwork, utility drops and heater connections with other trades working in the fabrication area.
Exhaust Routes And Replacement Air
Large module booths and blast rooms can change building pressure quickly. Exhaust discharge, make-up air intakes, gas service, compressed air and electrical feeds should be planned together so the system does not fight nearby doors, cranes or production ventilation.
- Document the largest module, support frame and handling method.
- Identify nearby cranes, rails, roll-up doors, drains and existing roof openings.
- List coating steps and any cure, recoat or inspection hold points.
Service Clearance Around Heavy Work
Filters, fans, doors, lights, controls, dampers and burner components need service access after large steel is staged nearby. Relocation plans should also include safe isolation of utilities, inspection of duct sections and a reset plan that keeps maintenance points reachable.
Frequently asked questions
What should a plant gather before layout review?
Gather module dimensions, handling equipment, coating steps, utility locations, roof access, bay obstructions, crane paths and any areas that cannot be blocked.
Why does module finishing need careful airflow planning?
Large exhaust systems can affect pressure and temperature in adjacent fabrication areas. Make-up air and exhaust routes need to be planned with the building, not just the booth.
How do other trades affect booth installation?
Electrical, fire protection, roofing, controls, gas piping, compressed air and structural work often need to be sequenced so the booth, blast room or air unit can be set and connected.
Can a booth be moved within an active fabrication plant?
A relocation can be planned after reviewing equipment condition, utility isolation, rigging paths, production aisles, roof penetrations and the new service clearances.
What access should be left for maintenance?
Leave space for filter changes, light replacement, fan service, burner work, damper checks, control panel access and duct inspection.