противопожарная перегородка

firewall partition (Leading installer of Industrial Firewall Partitions, PIR & Mineral Fibre wall systems up to 4hr fire rating, Firestopping, Firedoors and Secondary Steelwork. Alexander Demidov)

avia.

fire seal; fire wall; fire-bulkhead; fire barrier; fireproof bulkhead; firewall web

construct.

fire partition (с пределом огнестойкости не менее 2 ч; In a building, a partition which has a fire-endurance rating of not less than 2 hr, but does not qualify as a fire wall. McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 Alexander Demidov); fire compartment wall

fire division (Козловский Николай); draught stop (НикаОлеговна)

O&G, oilfield.

fire bulkhead

O&G, sahk.r.

firewall (process unit)

O&G, sakh.

firewall (process unit)