What Are The Standards for Scaffolding Couplers?

There are many standards for scaffolding couplers, and the standards applied vary depending on the region they are used for. Different standards have different requirements for the production process, materials, and testing standards of scaffolding couplers, but regardless of which standard is followed, the quality of the scaffolding couplers must be ensured.

What are the standards for scaffolding couplers?

Currently, the commonly used scaffolding standards in the UK and Europe are BS1139 and EN74, which define the material, design, and performance requirements for scaffolding. Scaffolding couplers must be compatible with 48.3mm outer diameter steel pipes and meet specific load-bearing limits and anti-slip properties.

BS1139 primarily addresses scaffolding pipes and fittings, detailing technical requirements for the dimensions, materials, galvanizing, chemical composition, and mechanical properties of the steel pipes and couplers. These include drop-forged double couplers, pressed double couplers, drop-forged swivel couplers, pressed swivel couplers, putlog couplers, girder couplers, board-retaining couplers, and sleeve couplers.

The EN74 standard focuses on scaffolding couplers and is divided into Class A and Class B standards. EN74 Class A specifies the scaffolding coupler's anti-slip properties, deformation resistance, and other basic structural safety criteria. EN74 Class B has stricter deformation requirements than Class A and has higher load-bearing requirements, making it suitable for higher load requirements.

In addition, scaffolding couplers used in China can comply with the GB15831 standard, while scaffolding couplers used in the UK and other regions of Europe comply with EN74 or BS1139. Scaffolding couplers used in Germany can comply with either DIN or EN74 standards. Scaffolding couplers used in Japan comply with JIS, EN74, and BS1139 standards. Scaffolding couplers used in South Korea comply with KSD standards. Scaffolding couplers of different standards follow different requirements in production and quality control. You can choose the appropriate scaffolding standard for testing according to local engineering construction needs.