Air Make Up Units for Storage Tanks and Pressure Vessels
Finishing large tanks and pressure vessels can require significant exhaust air from paint booths, blast rooms and preparation areas. Double D Mechanical installs, relocates and services air make up units that replace exhausted air, support booth balance and coordinate heated or tempered supply with the coating process.
Discuss your installationSupply Air for Large Exhaust Loads
Large equipment booths and blast related systems can remove enough air to affect doors, adjacent rooms and building pressure. A make up air unit should be coordinated with exhaust fan demand and operating modes so the finishing area receives controlled replacement air.
Placement Around Cranes and Roof Structure
Unit location affects duct runs, roof curbs, intakes, gas piping, electrical feeds and service access. In vessel shops, the layout also needs to avoid crane paths, tall shell movement, pipe racks and staging lanes near the booth.
Heat, Controls and Interlocks
Gas or electric service, control wiring and interlocks with exhaust fans should be planned before installation. Access for startup checks, filters, burners, belts, dampers and control panels should remain practical after production begins.
Air Distribution Near Cylindrical Parts
Supply air should support coating airflow without creating drafts across freshly coated shells or pulling dust from blast work. Diffuser locations and duct routing should be reviewed with booth openings, vessel supports and operator work zones.
Details to Have Ready
A site review is more useful when the air unit can be matched to actual booth and building conditions.
- Booth and exhaust fan information
- Maximum vessel size and movement path
- Available fuel, electrical and control connection points
- Roof, wall and structural limits for unit placement
Frequently asked questions
Why is make up air important for tank and vessel booths?
The exhaust volume can be large. Planned replacement air helps stabilize booth pressure and reduces uncontrolled drafts from doors and adjacent spaces.
Can one unit serve a booth and a blast room?
It may be possible, but operating schedules, exhaust volumes, controls and air distribution need to be reviewed.
What affects the best location for the unit?
Roof structure, intake clearance, duct route, fuel and electrical access, service clearance and the path used to move large vessels all matter.
What should be checked before reusing an existing unit?
Capacity, condition, voltage, fuel needs, control compatibility, curb or support requirements and service access at the new location should be checked.