Gas Pipe Sleeve Under Concrete Floor

This will ensure freedom from corrosion.

Gas pipe sleeve under concrete floor.

This is a step by step tutorial on how a stepped drill b. The sleeve shall be two pipe sizes greater than the pipe passing through the wall. 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. This byot diy project details how to get a sprinkler pipe under an existing concrete slab side walk.

Where piping in floor channels is exposed to excessive moisture or corrosive substances the piping shall be protected in an approved manner. Always sleeve the pipe where it passes through solid walls or floors. In industrial occupancies gas piping in solid floors such as concrete shall be laid in channels in the floor and covered to permit access to the piping with minimum damage to the building. Borrowed from jerry s post on another thread.

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 feasible to keep the pipe inside the sleeve dry by means of suitable end seals. If it is under a concrete pad then it has to be in a sealed pressure tested and vented sleeve.