Foam Block Seal
ATS-FS7 Foam Seal – The flexible foam filled primary rim seal is mounted in a position resulting in the bottom of the seal being in contact with the stored products. ATS-FS7 Foam Seal is comprised of a series of polyurethand foam blocks covered by an envelope and compressed bwtween the tank shell and the floating roof rim. The foam blocks are held down by steel plates. This product mounted type eliminate vapor area. The curtain seal prevents any vapor passing between the roof and the metal frame or hanger bar.