Bulletin
Emergency Shutdown Systems for Chlorine Transfer — Safety Bulletin
Emergency Shutdown Systems for Chlorine Transfer — Safety Bulletin
- CSB
- Bulletin
- Functional safetyHazardous substancesLoss of containmentMechanical failureRegulation and legislation
- Fluid transfer
- Gas detectorHoseValve
- Functional testingEnergy and process isolationOperating and work proceduresPreventive maintenance
- Downstream and process industries
- Onshore facility
Summary
This bulletin contrasts chlorine transfer hose failures at DPC Enterprises and Honeywell, showing how emergency shutdown performance affected release consequences. It explains excess flow valve limitations, recommends reliable detection and isolation arrangements with periodic testing and maintenance, and examines regulatory gaps in chlorine railcar unloading.
Classifications: Functional safety; safety instrumented systems; SIS.
Classifications: Hazardous substances; hazardous chemicals; chemical exposure.
Classifications: Loss of containment; containment loss.
Classifications: Mechanical failure; equipment failure.
Classifications: Regulation and legislation; safety legislation; regulatory requirements.
Classifications: Fluid transfer; fluid loading; fluid offloading.
Classifications: Gas detector; gas monitor; gas detection instrument.
Classifications: Hose; flexible hose.
Classifications: Valve; valves.
Classifications: Functional testing; function test.
Classifications: Energy and process isolation; isolation; energy isolation.
Classifications: Operating and work procedures.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Downstream and process industries; refining; petrochemicals.
Classifications: Onshore facility; onshore plant.