RACT / BACT & LAER

Are you subject to RACT / BACT or LAER?

Your Source DescriptionThe EPA’s NSR Required Control Technology
Existing Source
Non-Attainment Area
R A C T
(Reasonably Available Control Technology)
New or Modified Source
Attainment Area
B A C T
(Best Available Control Technology)
New or Modified Source
Non-Attainment Area
L A E R
(Lowest Achievable Emissions Rate)

DISCUS emissions control technology improves BACT and lowers LAER

New on the DISCUS OpenRaft™ — not available with any other aluminum IFR:

  • The lowest bolted seam loss factor ever tested — 700x lower than the default (BACT)
  • No drains: DISCUS has the only aluminum floating roof designed to meet API 650 requirements for an IFR without drains  (LAER)
  • Liquid-mounted seal: exclusively from DISCUS is an armored liquid-mounted seal (LAER)

Recent technology — and included on the DISCUS OpenRaft™ (BACT): 

  • Welded seams (zero loss)

Previous technology — and included on the DISCUS OpenRaft™ (BACT):

  • Eliminate loss through leg penetrations (replace legs with chains, use fixed or sealed legs)
  • Add sleeves, floats, gaskets and wipers to gauge poles