ATEX coupling SK

ATEX safety couplings from R+W Coupling are used in explosive environments and are generally selected based on the disengagement torque, where the safety part disengages the driving part from the driven part. These precision couplings are maintenance-free, free from play, and wear-resistant. The very short reaction time for disengagement makes this coupling ideal for protecting the application. ATEX safety couplings should be used with an ATEX switch. In ATEX environments, a safety coupling that can fully disengage to prevent high temperatures due to extreme friction after disconnection is generally used. For ES2 torque limiters, the elastomeric insert is available in version “D” (Sh65D), which is electrically conductive to provide a safe discharge path for potential electrostatic charges.

If bellows couplings are installed, they may only be used within a closed enclosure. Both the input and output shafts must be monitored to ensure shutdown in case of a coupling failure. Dimensions and materials of the standard models of the ATEX safety coupling remain largely unchanged. The misalignment errors, speeds, and nominal torque of the version with bellows part must be reduced by 30%.

For more information about the operation or advice regarding these ATEX safety couplings, such as in servo technology or machine building, please get in touch with VARIODRIVE.