Cause & Consequence
- Uncontrolled release of a flammable gas or liquid
Specific Incident Equipment
12” 1500# RTJ WKM Thro Conduit Gate valve with Axelson pneumatic spring return linear actuator.
All valves of this type or similar should be surveyed and maintenance histories reviewed for each. Any valves with potential to leak in a similar fashion should be considered for isolation and potential repair.
Consideration should be given to modifying the stem packing retention mechanism on all valves of a similar design
Valves of similar design have been identified and are being assessed for repair. Modifications to stem packing retention mechanism will be carried out on all similar valves irrespective of their condition upon inspection. Any valves with potential to leak in a similar fashion should be considered for isolation and removal for repair at the earliest opportunity
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