What is ISO 28763-Vitreous and porcelain enamels for heat exchangers about?
ISO 28763 is an International Standard that discusses vitreous and porcelain enamels, for optimal durability and performance of heat exchangers.
ISO 28763 specifies the minimum requirements and the functional characteristics of enamel coatings applied by any process, such as wet dipping, wet flow-coating, wet spraying, wet electrostatic spraying, wet electrodeposition, or dry-powder electrostatic spraying, to profiled steel heat exchanger panels in regenerative heat exchangers, before and after packing in baskets.
For very severe service conditions, or to obtain extended operational life, more stringent limits can be agreed upon between customer and supplier.
Who is ISO 28763- Vitreous and porcelain enamels for heat exchangers for?
ISO 28763 on vitreous and porcelain enamels is relevant to:
- Manufacturers of vitreous and porcelain enamels
- Manufacturers of heat exchangers
- Industrial plants
- Chemical engineers
- Fabricators
Why should you use ISO 28763- Vitreous and porcelain enamels for heat exchangers?
A heat exchanger is a device that transfers heat from one fluid (liquid or gas) to another, and is widely used across engineering applications, in both heating and cooling processes. However, for their durability and performance, best industry enamelling practices are critical.
ISO 28763 provides you with the guidelines for enamel coatings applied on profiled steel heat exchanger panels in air-gas and gas-gas heat exchangers, that improve corrosion, temperature and chemical resistance qualities.
With ISO 28763-compliant vitreous and porcelain enamelling, you can ensure that the heat exchangers do not deteriorate from permeability of liquids and vapours, thus allowing you to control undercutting caused by rust and corrosion. Overall, these best industry requirements of characteristics and technical properties can impart a high level of strength to the enamelled steel.
What’s changed since the last update?
BS EN ISO 28763:2019 supersedes BS EN ISO 28763:2011, which is withdrawn. BS EN ISO 28763:2019 includes some technical changes with respect to BS EN ISO 28763:2011. These include:
- The normative references have been updated and the terms and definitions have been updated
- References to normative documents and respective clauses have been updated
- References and requirements for hydrogen permeability of steel have been updated in Clause 4
- Requirements for visual examinations have been amended in Clause 6
