Primary Tank Tube Seal (TB5)

The Primary Tank Tube Seal is a liquid-filled sealing system – typically using water, kerosene or other suitable media – designed to provide reliable primary sealing for floating roof tanks. Proven across a wide range of tank diameters and applications, it has been successfully used with the full spectrum of crude and refined products.

The seal features a separate scuffband and tube. The scuffband, manufactured from ribbed nylon fabric coated with a tough elastomeric material, is engineered to withstand repeated contact with the roughest tank shell surfaces, delivering long service life and consistent performance.

Tube sizes are available from 250 mm to 350 mm to suit different tank sizes and nominal rim spaces. While normally produced in one continuous length for a seamless fit, the Primary Tank Tube Seal can also be supplied in separate sections if required, ensuring easy installation and flexibility for both new builds and retrofits.

Material Specification:

Fabric reference:
Nylon fabric covered with a nitrile-PVC elastomer

Scuffband:
4.5 mm minimum

Tube:
1.5 mm minimum

Full seal weight:
10 kg per lineal meter

Estimated lifespan:
10 – 20 years

Technical data:

Rim space:
200 mm ± 100 mm (standard)

Aromatic resistance:
75% (with special materials available to give service in 100% products)