BoltEx® - Hot Bolting Clamp

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Use the link in the description to download the data sheet - or contact our team for more information.

BoltEx® ensures flange integrity during the bolt replacement under pressure, also known as 'hot bolting'. Proven to perform at 1.5 times the design pressure even with all flange bolts removed, BoltEx® presents a robust and effective solution for ensuring bolted joint integrity.

Quick and safe to install

- 1-2 installers

- Available at short notice

- No damage or disturbance to gasket

- Optimised design and weight for efficient installation and handling


Robust and versatile

- Proven to perform at 1.5 times the design pressure with all flange bolts removed

- Countersunk bolts for space restricted locations (e.g., near valves or bulkheads)

- Open design allows better access to the bolt removing tools (e.g., nut splitters)

- Designed to be reusable multiple times

- Can be left in place for an extended period of time preserving flange integrity


Cost effective

- Eliminates the need for plant shutdown to rectify flange anomalies

- Prevents loss of containment on flanges

- Extends asset lifetime and reduces maintenance costs


Innovative Gasket Protection System (GPS)

- GPS prevents over-compression or release of sealing pressure of flange gasket

- BoltEx® bolts are pre-loaded against the GPS; compression load on the gasket is maintained as the flange bolts are replaced

- In case of flange bolt failure, BoltEx® safely takes the load preserving joint integrity



- Hire and Sale
For hire - select "Add to Quote" and enter in your hire length and dates (if known) in the notes section and our team will be in contact with a quote. 


Data Sheet

CLICK HERE to view / download the product data sheet.