Supply of Tank Equipment (Aluminum Dome Roofs, Internal Floating Roofs, Floating Roof Seals and Floating Roof Drain System)

Wolrd Bridge Industrial Co. Ltd.

WB

WB., is a global supplier based in South Korea that, for 30 years, has provided customers around the world with reliable products, designed by precise structural analysis and manufactured with a strict and accurate quality management system, to meet its goal "World Bridge Covers the World".

Products:

Aluminum Geodesic Dome Roofs.

Internal Floating Roofs.

Floating Roof Drain System.

Seals for Floating Roofs.

Aluminum Geodesic Dome Roof

WB's aluminum geodesic dome roofs represent an innovative and efficient solution for the enclosure of storage tanks, designed in accordance with API 650 appendix G. These roofs are versatile, being able to operate both at atmospheric pressure and at low internal and external pressure, allowing the structure to be adapted to various needs.

Internal Floating Roofs

WB specializes in the manufacture of internal floating roofs that are characterized by their advanced design, backed by more than 20 years of technical experience. Each internal floating roof is customized for each storage tank, thus guaranteeing its operation. Among the many benefits offered by these internal roofs are their innovative design to prevent vapor loss and their remarkable chemical resistance. In addition, they have a long service life and are easy to install, which allows their adoption in different environments, have a resistant structure and are environmentally friendly, making them an ideal choice to reduce fuel vapor losses in tanks

Internal Floating Roof Pontoon Type

It is a non-contact product cover. This innovative structure is composed of a set of metal membranes that are fixed to a beam grid. These beams, in turn, are mounted on an arrangement of interconnected tubular pontoons, which guarantee the buoyancy of the roof. Made from aluminum alloys, stainless steel, or a combination of both, these covers are presented as the most economical option to reduce emissions. However, its disadvantage must be considered that, in the event of a fire, according to NFPA 11, it is necessary to protect the entire surface of liquid.

WB's full-contact honeycomb internal floating roof is the most environmentally friendly internal floating roof. Its patented clamping beam design ensures easy installation, eliminating the need for hot welding, reducing costs and improving jobsite safety. With a lifespan and structural strength that exceed those of the pontoon floating roof, this solution is not only durable but also environmentally friendly. As an additional advantage we have that in the event of a fire, according to NFPA 11, it is only necessary to protect the seal area, so they require a lower flow rate of firefighting foam.

Internal Floating Full Contact Roof

Seals for Floating Roof

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.

Seals for Internal Floating Roofs

Seals for External Floating Roofs

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

Floating Roof Drain System

The floating roof drain system is essential for rainwater management, as it allows the adequate drainage of the water collected on the roof. This mechanism not only ensures the buoyancy of the roof, but also prevents the collapse or sinking of the roof due to an overload due to accumulated water.

3+1 Articulated Type Roof Drain System

Hose Type Drain System

3+1 Articulated Type Roof Drain System

Articulated type drain systems are made up of steel tubes and mechanical joints (flexible oscillating joints or swivel joints), designed to withstand the forces that may be causing various operating conditions. The system typically incorporates high-strength joints, but several alternatives are available to meet customer requirements.

Flexible Swing Joint

WB's patented twin access seal drain system can be used as a rubber hose movement type on storage tank roofs.

Check Valve

Unique design of the WB float check valve to prevent possible overflow of the drain line.

Swivel Joint

The fully sealed WB swing joint is specially designed for the service of submerged liquids, such as the articulated pipe drain system, oil skimmers and floating suction lines.

Hose Type Drain System

This system allows for the fastest drainage of water through the hose, allowing maximum drainage of rainwater in the shortest possible time. The flexible and easy-to-handle hose is used inside the storage tanks, to drain the water on the floating roofs. Specifically designed to ensure the repeated same hose placement pattern to prevent collision between the tank's internal components (floating roof leg, leg guard, etc.)

To achieve the above, each assembly is inspected, measured and tested from start to finish, to ensure the highest product quality to every customer worldwide.