What do you put around a gas pipe?

The gas line entering into a manufactured firebox area of a fireplace, usually on the left or right side, often has a small gap around the perimeter of the gas line. This small gap should be sealed with a high temperature caulking or sealant.

How do I protect my external gas pipes?





Gas pipes must be protected and tested before covering. Protection can be provided by covering with PVC sleeving. Gas pipes must be accessable for inspection if compression fittings are used to join them. There must 50mm between a gas pipe and any other metalic service – i.e. cables.

How do you seal gas line joints?

Quote from the video:
Quote from Youtube video: You're going to have natural gas leaks there are two different ways to do it one way to seal pipe joints is to go ahead and use teflon tape. It's a simple ribbon of teflon.

How often should gas pipe be supported?

G2424. 1 (415.1) Interval of Support

STEEL PIPE, NOMINAL SIZE OF PIPE (inches) SPACING OF SUPPORTS (feet) SPACING OF SUPPORTS (feet)
1/2 6 4
3/4 or 1 8 6
11/4 or larger (horizontal) 10 8
11/4 or larger (vertical) Every floor level Every floor level


Can a gas pipe be run externally?





There is no problem with running a gas pipe externally its a perfectly acceptable practice.

Can I build an extension over a gas pipe?

Can I build over a gas pipe? No, you must not build over or attempt to move/alter the gas pipes or meter without seeking advice from us.

Can gas pipes be covered?

Yes you can box gas pipes in you can also paint! As for boxing them in you could use plastic C-section with brackets for fixing and corner pieces or box in with ply as long as it is screwed for easy access!

Should exterior gas pipes be painted?

(a) Underground pipe and tubing and outdoor ferrous pipe and tubing shall be covered or painted with a suitable material for protection against corrosion. (b) All oxygen pipe lines shall be painted one color, preferably green, and all fuel gas pipes a different color.

Can black gas pipe be used outside?



It requires a coating and application method approved by the local jurisdiction. So most professionals just don’t use black iron outdoors. The photos above and below, of black iron gas pipe installed only a few years ago and unprotected on the outside wall of a home, shows how rapidly the pipe can corrode.

What is the basic span of supports for 2 pipe?

For example, for copper tubing, support spacing varies from 8-ft for 1″ tubing to 12-ft for 4″. For PVC pipe the spacing depends on the pipe schedule and operating temperature.



Support Spacing for Steel pipe (ASME B31.1)
Pipe Size (in) Water (ft) Gas (ft)
2 10 13
3 12 15
4 14 17

What kind of pipe is used for natural gas outside?

PVC. PVC gas pipes work well for underground exterior gas lines because they’re durable and resistant to corrosion. PVC pipes are an inexpensive solution, but some locations don’t allow them as they can break during the installation process.

Can I bury a gas pipe in concrete?



Gas pipes can be run underneath floors, however you need to make sure it is adquaetly protected with some sort of screed at around 25mm and the whole pipe should be encased to provide a protective coating. The chase you cut out should be the diameter of the pipe plus the 25mm screed. Hope this helps.

What is a gas pipe sleeve?

Overview. Gas Sleeving pipe is a yellow pigmented pipe manufactured from a rigid PVC compound.

Do gas pipes have to be underground?

A gas main should normally be laid with a minimum depth of cover of 750 mm in a road or verge and 600 mm in a footpath. A gas service pipe should normally be laid with a minimum depth of cover of 375 mm in private ground and 450 mm in footpaths and highways.

Can gas pipe go through footings?

No Gas Pipe can pass under Foundation, but if it’s protected ( in it’s own duct) it can go I believe, but there is the risk of settlement, so a risk of fractured gas main.

How deep in the ground should a gas line be?



Exterior piping may be either buried or installed aboveground and shall be well supported and protected against mechanical damage. Underground piping shall be buried not less than 18 inches below the surface of the ground unless otherwise protected.

How deep do you dig for gas pipe?

How Deep Should Gas Pipes be Buried in the Ground?

Depth (minimum)
Type of Pipe Verge / Road Footpath
Gas Main Pipe 750mm 600mm
Gas Service Pipe 450mm 450mm


Does gas pipe need ducting?

Ducts must be used solely for insertion of the gas pipe. Ducting must be laid in a straight line with services running perpendicular to the mains pipe.

How wide is a gas line trench?



GAS LINE DEPTH: 24 INCHES UNDER DRIVEWAYS AND PARKING AREAS, 15 INCHES UNDER NON TRAFFIC AREAS. GAS LINE TO BE BURIED WITH A CONTINUOUS TRACER WIRE FROM RISER TO RISER TERMINATING ABOVE FINISHED GRADE. ELECTRICAL CABLE DEPTH: 36 INCHES UNDER DRIVEWAYS AND PARKING AREAS, 24 INCHES UNDER NON TRAFFIC AREAS.