Chemical Plant Exhaust Material Hold Point
Chemical exhaust duct material, joints, slope, and fans depend on the chemical being exhausted.
Stop if
- This exhaust is chemical/corrosive. What material, joint method, and drain/slope detail are approved?
Watch out
- Do not choose duct material by habit
- verify chemical compatibility first.
Check
- Confirm chemical, concentration, temperature, material, joint method, slope/drain, fan type, and AHJ requirements.
Steps
- Identify whether this is normal ductwork or a controlled/special condition.
- Confirm chemical, concentration, temperature, material, joint method, slope/drain, fan type, and AHJ requirements.
- Get the current drawing/detail/spec/submittal before changing routing, material, access, or support.
- Bring photos, location, and what you checked to the foreman before closing or covering the work.
Say this to your foreman
This exhaust is chemical/corrosive. What material, joint method, and drain/slope detail are approved?
More in Grease Duct, Kitchen & Industrial Exhaust