The ATEX certified Sure-Flex coupling.
The ATEX certified Sure-Flex coupling.

The Sure-Flex coupling from TB Wood’s, part of Altra Industrial Couplings, has been awarded ATEX certification, which allows the coupling to be installed in some potentially explosive atmospheres.

The ATEX certificate covers all product designs within the Sure-Flex range. The only distinction is between the maximum surface temperature classes depending on the sleeve material; EPDM and Hytrel are T4 ( <135C), while Neoprene and Urethane are T5 ( <100C).

Shock loading capability
The coupling is rated as Device Group “II”, Category “2”, Material Group “G” for Gas and “D” for dust, Kind of Ignition “c”, Temperature T4 ( <135C) for EPDM or Hytrel Sleeves, and Temperature T5 ( <100C) for Neoprene or Urethane Sleeves.

The design of the Sure-Flex coupling offers suitable shock loading capability as well as a 4-way flexing action, which can accommodate all types of vibration, misalignment and end-float.

With a maximum torque load of 8.2 kNm, the Sure-Flex coupling can be used as a flexible solution for pumps, fans, compressors, conveyors, mixers and other equipment.