Air Make-Up Units for Oil and Gas Fabrication
Oil and gas fabrication shops often finish skids, pipe assemblies, frames, valves and structural components that require high exhaust airflow. Double D Mechanical installs, relocates and services air make-up units for coating, blasting and curing areas with attention to replacement air, duct routes, utilities and access.
Discuss your installationAir Balance Around Fabricated Assemblies
Large fabricated assemblies need room for cranes, forklifts, rotators and staging. The air make-up system should replace exhausted air without pushing overspray, dust or heat into adjacent weld and fit-up areas. Discharge locations should support booth or room airflow while staying clear of material handling paths.
Outdoor Unit Placement and Duct Runs
Air make-up equipment may be roof-mounted, grade-mounted or placed near the production area depending on structure, access and duct routing. Intake locations should avoid obvious sources of dust or exhaust, and ductwork should be planned around pipe racks, bridge cranes, mezzanines and existing utilities.
Fuel, Power and Controls Coordination
The unit may need gas, electrical power, controls and links to exhaust fans or booth operating modes. Those connections should be planned with other trades so startup is not delayed by missing disconnects, control paths or utility capacity questions.
Planning Data Before the Visit
Helpful inputs include coating equipment drawings, exhaust fan capacities, part envelopes, crane clearances, utility maps, roof information and photos of proposed unit locations. For existing systems, note pressure issues, door movement problems or temperature complaints during production.
Frequently asked questions
How does make-up air affect oil and gas coating work?
It helps replace exhaust air so booth or room pressure, temperature and airflow direction are more predictable during coating operations.
What plant constraints should be reviewed?
Crane travel, pipe racks, forklifts, weld areas, roof structure, utility routes and service access around fans and filters should all be reviewed.
Can an air make-up unit serve a blast area and paint area?
It depends on airflow demand, operating sequence, duct separation and controls. The connected systems need to be reviewed together.
What signs suggest the current replacement air is not keeping up?
Hard-to-open doors, drafts, temperature swings, poor capture at exhaust points or air moving from dirty areas toward coating work can indicate a problem.