Applying the correct closure torque to DURAN® caps is critical to achieving an effective seal. Therefore a range of seven specifically designed splined sockets that fit most of the DURAN® GL-threaded plastic closures have been developed.

Torque is the rotational force applied during application or removal of a closure from a bottle. The correct application torque for a bottle cap is very important as it affects the sealing integrity. Over-tightening may cause some parts of the cap to be under more pressure than others, which could result in an improper seal. Alternatively, the container may leak or the closure could easily unscrew if too little torque is used. When the correct torque is applied, it will provide sealing integrity under the specified temperature, humidity, and loading conditions.

• Compliance – Enables accurate closure of DURAN® GL 25, 32 and 45 caps
• to the recommended torques
• Ease of use – Cap thread size and type is permanently engraved into the top surface
• Hygienic design – Suitable for cleanroom use
• Full traceability – Engraved lot-specific code for certification
• Convenient – Socket hole fits “industry standard” 1/4 inch wrench drive size
• Robust and recyclable – Machined from a high strength Aluminium alloy EN AW-2007
• High quality – “Made in Germany” components