Couplers, spigot pins and baseplates for use in falsework and scaffolds - Part 1: Couplers for tubes. Requirements and test procedures

Couplers, spigot pins and baseplates for use in falsework and scaffolds - Part 1: Couplers for tubes. Requirements and test procedures

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1   Scope

This European Standard specifies, for right angle couplers, swivel couplers, sleeve couplers and parallel couplers working by friction:
  • — materials;
  • — design requirements;
  • — strength classes with different structural parameters including values for resistance and stiffness;
  • — test procedures;
  • — assessment;
    and gives
  • — recommendations for ongoing production control.
For testing, screw couplers are tightened to a torque of 50 Nm and wedge couplers are tightened with a 500 g hammer until the jarring blow.