Ductlok Mechanical Seal

A flexible and efficient sealing solution for modern fibre networks

The HellermannTyton Ductlok Mechanical Seal is designed to provide a fast, safe and reliable method of sealing 7mm and 10mm microducts into closure ports. Engineered for consistency and ease of installation, it creates a highly repeatable seal between the duct and closure port, helping to prevent water ingress while maintaining network integrity in demanding fibre optic environments.

Ideal for both new deployments and network upgrades, the Ductlok enables closures to be pre-tubed prior to final fibre connection, simplifying installation workflows and reducing time spent on site. Its robust mechanical sealing design eliminates the variability associated with traditional sealing methods, delivering dependable, non-leak performance across multiple installations.

Fully compatible with HellermannTyton’s range of fibre closures, including FDN, CFN, FRBU and FST Dome Closures, the Ductlok provides a flexible and efficient sealing solution for modern fibre networks.

Features and benefits:

• Reduces installation time and labour requirements.
• Enables faster network deployment and maintenance.
• Provides a secure, purpose-designed seal for 7mm or 10mm microduct applications.
• Ensures consistent fit and performance.
• Allows pre-tubing so closures can be prepared in advance and connected later.
• Minimises the risk of installation errors.
• Helps protect valuable fibre infrastructure from moisture ingress.