Anode - A form of cathodic protection , to protect steel subterrenean piping from corrosion. An anode absorbs a charge and mitigates electro-chemical corrosion.
Anticorrosion Wax Tape Wrap - A form of pipe protection that stops chemical oxidation.
Backfill - The refilling of a hole excavated for the purpose of inspection, potholing, or daylighting.
Bell Hole - A bell-shaped hole dug beneath a pipeline to provide room for use of tools.
Boring - Horizontal Directional Drilling (HDD), is a minimal impact trenchless method of installing underground pipe by drilling horizontally
Cathodic Protection - A technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell.
CGI Leak Test - Combustible Gas Indicator leak test - testing for combustible gases like butane, methane, propane, etc.
Clock Testing - Method of leak testing that looks for leaks by the loss of pressure.
Compaction - Soil getting compact.
Corrosion - The breakdown of materials through electro-chemical exposure.
Curb Valve - Underground valve on branch service lines, for the power utility. Not every branch line has one.
Custom Gas Line Fabrication - Making a tailored gas line.
DP-IR - Detecto-Pak Infrared. Methane detector without false alarming other hydrocarbon ggases. DP-IR functions by using infrared optics.
Electrofusion - A method of joining MDPE, HDPE and other plastic pipes using special fittings that have built-in electric heating elements which are used to weld the joint together.
Electrolysis Test Station - Tracer wire leads converge here; you can test the continuity of the tracer wire.
Electronic Marker Balls - Ball buried at intervals to aid in locating gas lines.
Excavation - Digging out.
Excess Flow Valve - A gas line valve that stops gas flow when there is a sudden, dramatic, loss of gas pressure (as in a line break).
Gas Bury Tape - Line of tape indicating a gas line below, so in the event someone is digging, they'll hit that first.
Gas Filters - Remove particulates from gas.
Gas Line Slitting - Trenchless method of installing a gas line; you take an existing line, slit it, and pull the new line through it. Doing this with steel lines is called 'bursting'.
Gas Line Surveying - Mapping out gas lines on a property.
Gas Main (Line) - Delivery method of gas from a natural gas utility to a region.
Gas Meter - Device that measures gas flow to a unit or residence.
Gas Service Line - Delivery method of gas from a natural gas utility to a property.
Gas Turbines - Small power-generating device that burns natural gas to power an electric generator.
Gate Valve - Valve that retracts a gate into the body of a valve to open or close flow.
Heat Fusion (Hydraulic/Mechanical) - A welding process used to join two different pieces of a thermoplastic.
Hot Tapping/Hot Tie-In - Connecting a new gas line to a gas line that is actively transporting gas, vs. one that has been disconnected.
Hydrogen Flame Ionizer - HFI is a detector that detect and measure the level of hydrocarbons.
Infrared gas Leak Test - Gas survey (leak) test tool that uses infrared to detect leaking gas.
Inlet Gas Piping - Point at which gas enters a component.
Isolation Valves - Shut-off valve placed in a way so as to isolate a portion of the system, so that a leak can be isolated and leave gas flowing elsewhere.
Laser Gas Leak Test - A gas leak test that uses a laser light.
Outlet Piping From Natural Gas Meter - Point at which gas exits a component.
Pipe Fitting - A union, elbow, step-up, coupler, or reducer - that joins or modifies pipe.
Pipe Squeezing - Method of stopping gas flow that clamps down on plastic pipe to stop the flow of gas, when a shut-off valve is not accessible or available.
Polyethelene Piping - Synthetic piping that does not corrode as quickly as steel, when underground.
Potholing/Daylighting - Removing earth to inspect piping.
Pressure Testing - A method of leak test that detects leaks by determining whether gas pressure in a line is lost.
Regulator - A device that maintains pressure at a predetermined level along a gas system. Natural gas goes through several steps of pressure on its way to the consumer.
Relief Valve - A type of over-pressure protection that is installed downstream and adjacent to the main regulator.
Repiping - New piping of corroded or outmoded piping. May happen in an existing trench or require a new trench or route.
Riser - The bending part of a gas line that brings a gas line from subgrade to above grade. Also can be a portion of pipe that elevates a line.
RMLD - Remte Methane Leak Detector. Detects leaks from 2 to 100 feet, but usually only used to determine the presence of a leak.
Seismic Shutoff Valve - A natural gas valve that turns off gas flow to a building or property in the event of an earthquake.
Service Valve - Located on the stell riser attached to the meter set at a customer property. A shut-off valve for the gas utility.
Shutoff Valve - Valve used to shut off natural gas. Ususally a plug or ball style.
Smart Meter - Utility meter on a home that broadcasts usage information to the power utility.
Socket Fusion - Special type of fusion, contrasted with butt fusion, where the two male ends of a pipe are joined by a larger female connection.
Steel Piping - Type of gas piping suitable for rooftop and above ground piping when galvanized. Older, non-galvanized piping often has been corroded.
Subgrade - Below the ground.
Tracer Wire - Metal wire that goes along plastic pipe so make it identifiable with an electric current.
Trenching - The digging of a hole for a gas pipeline to sit in.
Utility Locating - Locating underground utility lines, using detection equipment.
Valve Actuator - Valves can be opened manually or opened by means of electronic, pneumatic or hydraulic valve acutators. A solenoid actuator may be found in boiling room.
Valve Exercising - The closing and reopening of valves 1/4 turn, so that they do not stick or freeze.
Anticorrosion Wax Tape Wrap - A form of pipe protection that stops chemical oxidation.
Backfill - The refilling of a hole excavated for the purpose of inspection, potholing, or daylighting.
Bell Hole - A bell-shaped hole dug beneath a pipeline to provide room for use of tools.
Boring - Horizontal Directional Drilling (HDD), is a minimal impact trenchless method of installing underground pipe by drilling horizontally
Cathodic Protection - A technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell.
CGI Leak Test - Combustible Gas Indicator leak test - testing for combustible gases like butane, methane, propane, etc.
Clock Testing - Method of leak testing that looks for leaks by the loss of pressure.
Compaction - Soil getting compact.
Corrosion - The breakdown of materials through electro-chemical exposure.
Curb Valve - Underground valve on branch service lines, for the power utility. Not every branch line has one.
Custom Gas Line Fabrication - Making a tailored gas line.
DP-IR - Detecto-Pak Infrared. Methane detector without false alarming other hydrocarbon ggases. DP-IR functions by using infrared optics.
Electrofusion - A method of joining MDPE, HDPE and other plastic pipes using special fittings that have built-in electric heating elements which are used to weld the joint together.
Electrolysis Test Station - Tracer wire leads converge here; you can test the continuity of the tracer wire.
Electronic Marker Balls - Ball buried at intervals to aid in locating gas lines.
Excavation - Digging out.
Excess Flow Valve - A gas line valve that stops gas flow when there is a sudden, dramatic, loss of gas pressure (as in a line break).
Gas Bury Tape - Line of tape indicating a gas line below, so in the event someone is digging, they'll hit that first.
Gas Filters - Remove particulates from gas.
Gas Line Slitting - Trenchless method of installing a gas line; you take an existing line, slit it, and pull the new line through it. Doing this with steel lines is called 'bursting'.
Gas Line Surveying - Mapping out gas lines on a property.
Gas Main (Line) - Delivery method of gas from a natural gas utility to a region.
Gas Meter - Device that measures gas flow to a unit or residence.
Gas Service Line - Delivery method of gas from a natural gas utility to a property.
Gas Turbines - Small power-generating device that burns natural gas to power an electric generator.
Gate Valve - Valve that retracts a gate into the body of a valve to open or close flow.
Heat Fusion (Hydraulic/Mechanical) - A welding process used to join two different pieces of a thermoplastic.
Hot Tapping/Hot Tie-In - Connecting a new gas line to a gas line that is actively transporting gas, vs. one that has been disconnected.
Hydrogen Flame Ionizer - HFI is a detector that detect and measure the level of hydrocarbons.
Infrared gas Leak Test - Gas survey (leak) test tool that uses infrared to detect leaking gas.
Inlet Gas Piping - Point at which gas enters a component.
Isolation Valves - Shut-off valve placed in a way so as to isolate a portion of the system, so that a leak can be isolated and leave gas flowing elsewhere.
Laser Gas Leak Test - A gas leak test that uses a laser light.
Outlet Piping From Natural Gas Meter - Point at which gas exits a component.
Pipe Fitting - A union, elbow, step-up, coupler, or reducer - that joins or modifies pipe.
Pipe Squeezing - Method of stopping gas flow that clamps down on plastic pipe to stop the flow of gas, when a shut-off valve is not accessible or available.
Polyethelene Piping - Synthetic piping that does not corrode as quickly as steel, when underground.
Potholing/Daylighting - Removing earth to inspect piping.
Pressure Testing - A method of leak test that detects leaks by determining whether gas pressure in a line is lost.
Regulator - A device that maintains pressure at a predetermined level along a gas system. Natural gas goes through several steps of pressure on its way to the consumer.
Relief Valve - A type of over-pressure protection that is installed downstream and adjacent to the main regulator.
Repiping - New piping of corroded or outmoded piping. May happen in an existing trench or require a new trench or route.
Riser - The bending part of a gas line that brings a gas line from subgrade to above grade. Also can be a portion of pipe that elevates a line.
RMLD - Remte Methane Leak Detector. Detects leaks from 2 to 100 feet, but usually only used to determine the presence of a leak.
Seismic Shutoff Valve - A natural gas valve that turns off gas flow to a building or property in the event of an earthquake.
Service Valve - Located on the stell riser attached to the meter set at a customer property. A shut-off valve for the gas utility.
Shutoff Valve - Valve used to shut off natural gas. Ususally a plug or ball style.
Smart Meter - Utility meter on a home that broadcasts usage information to the power utility.
Socket Fusion - Special type of fusion, contrasted with butt fusion, where the two male ends of a pipe are joined by a larger female connection.
Steel Piping - Type of gas piping suitable for rooftop and above ground piping when galvanized. Older, non-galvanized piping often has been corroded.
Subgrade - Below the ground.
Tracer Wire - Metal wire that goes along plastic pipe so make it identifiable with an electric current.
Trenching - The digging of a hole for a gas pipeline to sit in.
Utility Locating - Locating underground utility lines, using detection equipment.
Valve Actuator - Valves can be opened manually or opened by means of electronic, pneumatic or hydraulic valve acutators. A solenoid actuator may be found in boiling room.
Valve Exercising - The closing and reopening of valves 1/4 turn, so that they do not stick or freeze.
