Seals for Floating Roofs
Floating roof seals are crucial elements in the design of floating roof tanks for the storage of volatile products, as they help minimize evaporation losses. Floating roofs are designed with a smaller diameter than the tank, which creates an annular space that allows them to move freely with the level of the stored liquid. To optimize the efficiency of the system, it is essential to use seals that not only reduce losses in this space, but also dampen or absorb horizontal movements of the roof, as well as variations in the tank shell and its contraction or expansion. The proper installation of these seals, both on internal and external floating roofs, is essential to guarantee the integrity of the storage and the safety of the operation. External floating roofs additionally require a secondary seal to protect the product from environmental conditions.
WBS-2
Internal Floating Roof Seals
Type of Seal: Steam Mounted.
Ring Space: 180 mm ± 100 mm.
Metal Material: Aluminum or Stainless Steel.
Seal Material: NBR, PE, Teflon, PU.
Double Wiper Seal
WBS-4
WBS-5
Foam & Wiper Seal
Mechanical Shoe Seal
Type of Seal: Liquid Mounted.
Ring Space: 180 mm ± 100 mm.
Metal Material: Aluminum or Stainless Steel
Seal Material: NBR, PE, Teflon, PU.
Block Material: PU
Type of Seal: Steam Mounted.
Long life expectancy.
Ring space: 180 mm ± 100 mm.
Spring Plate Material: SS301.
Shoe Plate: Galvanized or Stainless Steel.
WB-1
Seals for External Floating Roofs
Ring Space: 200 mm ± 100 mm.
Shoe Plate: Galvanized or stainless steel.
Seal Weight: 45 kg/m
Widely used in crude oil storage tanks.
Mechanical Shoe Pantograph Type Seal
WB-2
WB-7
Mechanical Shoe Seal Plate Spring Type
Graver Foam Type Seal
Ring Space: 200 mm ± 100 mm.
Plate Spring Material: A240-301 (hard)
Seal Weight: 40 kg/m
Widely used in crude oil storage tanks.
Type of Seal: Mounted in Liquid & Vapor.
Ring space: 200 mm ± 100 mm.
Envelop Material: NBR, Teflon, PE.
Foam Block Material: PU.
Seal Weight: 25 kg/m
WB-50
Secondary Wiper Seal
Vapor barrier membrane and cleaner for sealing
Cleaner Tip & Compression Plate for perfect weather protection.
Membrane material: NBR, Teflon, PE.
Seal Weight: 30 kg/m
Details
engineering
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Technical Information for Tank Equipment Courtesy of World Bridge Industrial Co. Ltd.
Technical Information for Tanks Protection Devices Courtesy of Korea Steel Power Corp.
Technical Information for Bolted Tanks Courtesy of Center Enamel.
Glass Fused Steel Bolted Tanks
Stainless Steel Bolted Bolted Tanks
Aluminum Suspended Deck for Cryogenic Tanks.
Aluminum Rolling Ladder for External Floating Roofs
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