Cracks found on newly manufactured vertical machine mounted air receiver heads
Incident Investigation
Cracks were found on two newly manufactured vertical machine mounted air receiver heads
October 22, 2020
Boiler, PV and Refrigeration
Reference Number:
II-1097148-2020 (#19770)
Location: Prince George
Regulated industry sector: Boilers, Pressure Vessel & Refrigeration - Boiler and pressure vessel system
Incident overview
During a scheduled maintenance service, cracks were located on the top head of the vessels. The air receivers were installed without vibration isolation pads causing excessive stress and allowing cracks to develop.