Pipeline Gas Blowdown Systems
Operators of natural gas pipeline systems routinely reduce line pressure and discharge gas from pipeline sections to ensure safe working conditions during maintenance and repair activities.
A Pipeline Gas Blowdown System is used to quickly and safely remove gas from a blocked-in pipeline section. The Blowdown system allows an operator to quickly remove the gas from a large section of pipeline for repair or maintenance. The Blowdown system removes the moisture from the gas and reduces the blowdown noise to 85 dB A at 100 feet. A control valve on the inlet reduces the pressure of gas flow through the high efficiency separators, and a silencer reduces the exit noise level.
EN-FAB, Inc. has developed a modularized trailer unit for pipeline gas blowdown. The design provides for:
These trailers are designed for movement along difficult terrain and can be camouflaged to blend into the surroundings. Trailer design meets local transportation requirements.
Main Components
The system is designed for portability along the pipeline to selected sites for cleanup, blowdown, and maintenance requirements.
Typical Process Conditions
Gas Flow Rate
Gas Specific Gravity
Inlet Gas Temperature
Inlet Gas Pressure
Outlet Gas Pressure
Liquid Water Rate
Liquid Hydrocarbon Rate
Overall Noise Level
Blowdown Separators Efficiency
96 MMSCFD
.60 to .65
.60 to .65
65 deg F
1200 psig to Atmos.
Atmospheric
0 Gal/Day
1.0 Gal/Min (Max)
Not to exceed 85 dba @ 100 feet
Remove 98% of all the entrained liquid particles 6 microns and larger at design flow rate.
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3905 Jensen Drive
Houston, Texas 77026 USA
Contact Info
EN-FAB, Inc.
3905 Jensen Drive
Houston, Texas 77026
Mon - Fri 08:00 - 17:00