Library / Applicable to all Oil & Gas Operators GUIDELINES FOR THE OPERATIONS OF PETROLEUM REFINING FACILITIES Code: DPR GUIDE 0044 - 2021 Review Date: 3rd February 2021

Applicable to all Oil & Gas Operators GUIDELINES FOR THE OPERATIONS OF PETROLEUM REFINING FACILITIES Code: DPR GUIDE 0044 - 2021 Review Date: 3rd February 2021

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Applicable to all Oil & Gas Operators  
GUIDELINES FOR THE OPERATIONS OF PETROLEUM REFINING FACILITIES 
Code: DPR GUIDE 0044 - 2021 
 
Review Date: 3rd February 2021 
 
 
 
This is a property of the Department of Petroleum Resources. All rights reserved  
 
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Process Piping  
1. All process piping and its fittings in use in the refinery shall be periodically inspected 
visually and examined according to the procedure enumerated in the reference 
standard ANSI/ASME B 31, or accordance to code of design recommendation.  
2. Where possible the tests shall be hydrostatic and shall be conducted in a manner 
that will ensure the protection of life, property, and the general environment of the 
piping system.  
3. The pressure recording instruments to be used for the tests shall have a valid 
calibration certificate which should not be more than a year of issue and the chart 
record of the test shall be continuous and legible and all test results and any 
remedial action taken shall be submitted to the Department for approval before 
commissioning of the pipeline. The Accuracy of the pressure recorder shall be 
within two per-cent (2%) of its range.  
4. All process piping system shall be inspected at least once every twenty-four 
months. 
 Non-Pressure Vessels 
1. The heat exchangers and other non-pressure vessel equipment within the refinery 
shall be inspected from time to time in accordance with code and standard 
acceptable to the Director/CEO Department of Petroleum Resources  
2. If any fault is detected during the inspection, a detailed report of the inspection 
shall be forwarded to the Director/CEO Department of Petroleum Resources  
3. Every heat exchanger and other non-pressure vessel/equipment shall be inspected 
at least once in thirty-six months. 
8.2 
ROTATING EQUIPMENT  
All rotation or reciprocating equipment shall be inspected and examined regularly in 
accordance with the reference codes and standards or codes of design recommendations.