BS 6374-4 is a British standard that is a part of the BS 6374 series that specifies requirements for the lining of equipment for the process industries using cold-curing thermosetting resins. BS 6374-4 includes requirements for the choice of lining and its application and also requirements for subsequent inspection of the lining and the rectification of faults. BS 6374-4 applies to equipment fabricated in metal or concrete.
The lining materials considered include epoxies, polyesters, and furanes. Although not thermosetting resins, liquid elastomeric linings (such as polyurethanes) and solvated elastomeric linings (such as polychloroprene), are included since the same application techniques are used.
Note 1: The resins may contain fillers and/or reinforcing agents.
Note 2: The linings may be applied at the applicator’s works or on-site.
Note 3: BS 6374-4 does not apply to paint coatings as dealt with in BS 5493.
BS 6374-4 on lining of equipment with polymeric materials is useful for:
The plastics linings referred to in BS 6374-4 are used for a number of different duties, including protection against corrosive environments, prevention of contamination of products, and surface finishes that do not foul easily or which can be cleaned easily. Specific linings are used for protection against abrasion or erosion.
BS 6374-4 provides its users with the general exchange of information, design, and fabrication of metal equipment to be lined. BS 6374-4 guides you with instructions for the inspection and testing and rectification of faults in fully cured linings. Using BS 6374-4 guidelines ensures quality management and high-quality products.