Review the critical hazards, potential consequences, persons at risk and recommended control measures for Flange Breaking in one professional HSE workspace.
Review the key hazards, consequences and control measures for Flange Breaking in a structured professional HSE format.
High-pressure release and serious injury
Maintenance workers
Depressurization and isolation verification
Loosen bolts in a controlled sequence from a safe position
Burns, poisoning or eye injury
Personnel opening the flange
Line flushing/draining and suitable chemical PPE
Keep personnel clear of the potential spray direction
Pinch or crush injury
Maintenance and rigging personnel
Suitable supports and lifting equipment
Support the load before the connection is fully released
Unexpected process release
Maintenance personnel
Line identification, drawings and field verification
Perform a second verification of line identity before opening
Injury from pressurized liquid or gas
Personnel opening the flange
Controlled bolt-loosening method
Create the initial opening from outside the potential release path
Sudden movement, pinch or impact injury
Maintenance and rigging personnel
Line support and controlled dismantling
Assess pipe strain before fully removing bolts
Chemical contact or inhalation exposure
Maintenance workers
Flushing, PPE and SDS review
Clean residual product from flange surfaces in a controlled manner
Pinch or impact injury
Maintenance workers
Pipe support and strain assessment
Check pipe strain before completely separating the connection
Leak or process release
Maintenance and operations personnel
Material specification and gasket verification
Verify gasket type against service conditions and design requirements
Explore related activities, hazards and control measures from the same HSE risk category.
Use these ready hazards as your starting point, customize controls, evaluate risk levels and prepare your project-specific assessment in SERNEM.
Start Risk Assessment| ACTIVITY | Flange Breaking | CATEGORY | Process Isolation |
| # | Activity | Hazard | Consequence | Persons at Risk | Existing Risk Control | L | S | Risk | Action Required / Additional Controls | Person in Charge | Due Date | RL | RS | Residual Risk |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 01 | Flange Breaking | Trapped pressure inside flange | High-pressure release and serious injury | Maintenance workers | Depressurization and isolation verification | 3 | 4 | 12 High | Loosen bolts in a controlled sequence from a safe position | - | - | 2 | 2 | 4 Low |
| 02 | Flange Breaking | Chemical residue | Burns, poisoning or eye injury | Personnel opening the flange | Line flushing/draining and suitable chemical PPE | 2 | 3 | 6 Medium | Keep personnel clear of the potential spray direction | - | - | 1 | 2 | 2 Low |
| 03 | Flange Breaking | Movement of heavy flange or spool | Pinch or crush injury | Maintenance and rigging personnel | Suitable supports and lifting equipment | 3 | 4 | 12 High | Support the load before the connection is fully released | - | - | 2 | 2 | 4 Low |
| 04 | Flange Breaking | Opening the wrong flange | Unexpected process release | Maintenance personnel | Line identification, drawings and field verification | 2 | 3 | 6 Medium | Perform a second verification of line identity before opening | - | - | 1 | 2 | 2 Low |
| 05 | Flange Breaking | Line-of-fire exposure during flange opening | Injury from pressurized liquid or gas | Personnel opening the flange | Controlled bolt-loosening method | 3 | 3 | 9 Medium | Create the initial opening from outside the potential release path | - | - | 1 | 2 | 2 Low |
| 06 | Flange Breaking | Mechanical strain in flange connection | Sudden movement, pinch or impact injury | Maintenance and rigging personnel | Line support and controlled dismantling | 3 | 3 | 9 Medium | Assess pipe strain before fully removing bolts | - | - | 1 | 2 | 2 Low |
| 07 | Flange Breaking | Chemical residue on gasket or flange face | Chemical contact or inhalation exposure | Maintenance workers | Flushing, PPE and SDS review | 2 | 3 | 6 Medium | Clean residual product from flange surfaces in a controlled manner | - | - | 1 | 2 | 2 Low |
| 08 | Flange Breaking | Sudden pipe movement during flange separation | Pinch or impact injury | Maintenance workers | Pipe support and strain assessment | 3 | 3 | 9 Medium | Check pipe strain before completely separating the connection | - | - | 1 | 2 | 2 Low |
| 09 | Flange Breaking | Incorrect gasket used during reassembly | Leak or process release | Maintenance and operations personnel | Material specification and gasket verification | 2 | 3 | 6 Medium | Verify gasket type against service conditions and design requirements | - | - | 1 | 2 | 2 Low |