Investigation Report

Delaware City Refining Company

CSBU.S. Chemical Safety and Hazard Investigation Board

Delaware City Refining Company

Read at CSBOpens the publisher’s page on csb.gov

Summary

CSB safety bulletin examines a flash fire during maintenance preparation at Delaware City Refining Company. Hydrocarbons backflowed through a leaking closed valve while vessels were being emptied. It discusses isolation integrity, informal preparation instructions and management of change, with lessons on more protective isolation and an appendix reviewing other maintenance-related incidents.

Topics

About This Record
Publisher
U.S. Chemical Safety and Hazard Investigation Board
Type
Investigation Report
Date
18 May 2017
Topic
Fire, Hydrocarbon Release, Process Safety
Activity
Inspection and Maintenance
Equipment
Valve
Control
Energy and Process Isolation, Lockout and Tagout, Management of Change, Operating and Work Procedures
Sector
Downstream and Process Industries
Link
Checked , working
Record
csb-delaware-city-refining-company · added 2 September 2026

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