| Job Title |
Gas-main Fitter |
| Job Description |
Lays Pipe To Repair And Extend Nonwelded Gas Mains And To
Install Or Repair Service Pipes Between Mains And Residences:
Drills Hole In Section Of Main To Which New Pipe Will Be Fitted
And Inserts Inflated Rubber Bag To Seal Off Flow Of Gas. Removes
Faulty Pipe By Unscrewing Bolts At Joint With Hand Wrench. Lays
Gas Mains By Fitting Spigot End Of One Pipe Section Into Bell
End Of Another. Bolts Joints Together. Places Wooden Blocks
Under Pipe To Adjust Pipe To Line And Grade, Testing Gradient
With Carpenter's Level. Fastens Steel Cap Over Free End Of
Gas-main Extensions. Drills Hole Or Installs Reducing Fitting In
Main Where Service Pipes Begin. Bolts Saddle Clamp Around Main,
Preparatory To Welding. Drills Hole Through Welded Saddle Clamp
Into Main, Using Power Drill. Cuts, Threads, And Screws Together
Sections Of Pipe Forming Service Line, And Lays Service Line In
Trench. Bolts End Of Service Line To Saddle Clamp, Using Special
Compression Coupling To Produce Gas-tight Connection. Removes
Rubber Expanding Bag To Resume Flow Of Gas And Caps Holes With
Screw Plugs. Installs Various Gas-main Attachments, Such As
Drips, Ells, And Tees. Tests Pipe For Weak Joints By Forcing Air
Into Pipe With Air Compressor And Coating Joints With Soap And
Water, And Notes Formation Of Bubbles, Indicating Leak. Tightens
Bolts Or Repairs Leaky Joints. May Install Gas Meters. May
Install Pipes Beneath Roads, Lawns, Or Locations Where Not
Feasible To Dig Trenches, By Forcing Pipe Through Earth With
Special Pipe Jack. May Direct Crew In Excavating Trench And
Positioning Pipe. May Fuse Bonds To Pipe Joints, Using Holder
And Flash Chemicals (cad-weld), To Concentrate High Temperatures
At Point Of Fusion. May Install And Repair Service Lines Only
And Be Designated Pipe Fitter, Street Service (utilities).
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