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Natural gas 

Pipe cleaning – Best Practices- Power Magazine

Key words:

CFR (Cleaning force ratio). NFPA. Flammability Rating. UEL. LEL/  DNV Software’s Phast Version 6.6, a comprehensive hazard analysis software and modeling tool. Gas Line Pigging. Water blasting (hydrolazing). Air blow. Nitrogen blow. 

Pipe Flushing- Gas Blows How to- Power Magazine

Key words: NFPA 56 “Standard for Fire and Explosion Prevention During Cleaning and Purging of Flammable Gas Piping Systems”. Target plate. Color of the discharge plume. Blow path. Sectioning. Tail Pipe. Blow valve. Cleaning force CF = (mB2 x vB) / (2 x gc x A).  Sonic choking. Mass flow rate. Sound pressure level. Blowdown time (tBD) . Time to recharge the reservoir (tCHARGE). ASME B31.1 (pressure testing).  Discharge force. Dynamic load factor (DLF)

Natural Gas Pipe Sizing – CPC

Key words