Gas Pipe Sleeve Under Concrete Floor

Any section of the pipe installed inside concrete or steel pipe sleeves should be coated to at least the same standard as the remainder of the pipeline.

Gas pipe sleeve under concrete floor.

1 where the service pipe to any building having two or more floors to which gas is supplied or whether or not it has more than one floor a floor having areas with a separate supply of gas has an internal diameter of 50 mm or more no person shall install any incoming installation pipework supplying gas to any of those floors or areas as. The sleeve shall be two pipe sizes greater than the pipe passing through the wall. Where piping in floor channels is exposed to excessive moisture or corrosive substances the piping shall be protected in an approved manner. This is a step by step tutorial on how a stepped drill b.

Borrowed from jerry s post on another thread. This will ensure freedom from corrosion. Outdoors typically the pipe going under a sidewalk laterally can be in a sleeve that extends past the concrete on either side. This byot diy project details how to get a sprinkler pipe under an existing concrete slab side walk.

A pipe that passes through a foundation wall shall be provided with a relieving arch or a pipe sleeve shall be built into the foundation wall. Build the sleeve into the wall or floor and seal the gap between the gas pipe and sleeve with flexible fire resistant compound at at least one end as in figure 4. If it is under a concrete pad then it has to be in a sealed pressure tested and vented sleeve.