Library / GUIDE FOR THE ESTABLISHMENT AND OPERATIONS OF DOWNSTREAM GAS FACILITIES IN NIGERIA (LPG, CNG, LNG) ISSUED BY

GUIDE FOR THE ESTABLISHMENT AND OPERATIONS OF DOWNSTREAM GAS FACILITIES IN NIGERIA (LPG, CNG, LNG) ISSUED BY

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Applicable to all Oil & Gas Operators  
GUIDELINES FOR THE ESTABLISHMENT AND OPERATIONS OF A GAS 
RETICULATION FACILITY IN NIGERIA 
Code: DPR Guide 0028 - 2020 
 
Revision Date: 1st September 2020 
 
 
 
This is a property of the Department of Petroleum Resources. All rights reserved  
 
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meet the following at the minimum: 
i. 
Hose connections and flexible connectors shall be fabricated of materials that 
are resistant to the action of LP gas both as liquid and vapour. 
ii. 
Pressure-containing metal parts of valves shall be made of steel, ductile 
(nodular) iron, malleable iron or brass. 
iii. 
Manual shut-off valves, emergency shut-off valves, overpressure shut-off valve, 
flow check valves, non-return valves and back flow check valves used in piping 
system shall comply with the provisions for LPG storage and installation valves.  
iv. 
Proper flow control using approved Pressure Regulation Systems (PRS). 
v. 
Emergency shut-off valves shall be approved and shall incorporate all the 
following means of closing: 
 
a. Automatic shut-off through thermal (fire actuation). 
b. Manual shut-off from a remote location. 
c. Manual shut-off at the installed location. 
vi. 
Pressure, temperature, level and flow gauges should be incorporated into the 
system to ensure proper control and monitoring of the installation.  
vii. 
For gas piping installed underground, a sufficient clearance from any other 
underground structure to avoid contact therewith. Clearance for the piping 
shall be provided to allow maintenance, and to protect against damage from 
proximity to other structures.  
viii. 
Gas piping that shall be in contact with earth or other corrosive materials shall 
be protected against corrosion. When dissimilar metals are joined underground, 
an insulating coupling or fitting shall be used.  
ix. 
Adequate protection shall be provided for gas piping installed underground so 
as to prevent excessive stressing of the piping. Piping shall be buried in a 
manner that shall protect the piping from physical damage: 
a. A minimum of 300mm cover shall be provided for underground piping