Is a Pipe Sleeve on Fire Service Main Mandatory?

2/12/2020

We are working on a hospital project where the underground service pipe to the pump room was buried at 4 feet (1.2 m). Are we required to provide a concrete sleeve or any special concrete provisions to protect the HDPE pipe?

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4 Comments

Jonathan Joseph

2/12/2020 01:27:17 pm

A10.4.3.1.2 NFPA 13,24 (2016) Sufficient Clearance should be provided when piping passes beneath foundations or footers.

10.4.3.1.2.1 The requirements of 10.4.3.1.2 shall not apply when the piping is sleeved with an approved material.

Jonathan Joseph

2/12/2020 01:34:07 pm

10.4.3.1.2 Piping shall be installed a minimum of 12 in. below the bottom of the building foundations or footers

I would Sleeve it vertically through the slab if an any seismic zone

Franck

2/12/2020 05:36:17 pm

It is a good practice to protect the pipes going underneath a building to avoid that ground motion (earthquake, settlement, downward movement after heavy rains...) may damage / break the pipe.
And it happens more often than what we think...
Note that this should also be a concern when building a new structure above an existing underground piping system

Thameem

2/12/2020 11:51:09 pm

If do so what shall we do during maintenance in further

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