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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.

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