I understand that one can penetrate a firewall with the proper firestops installed, but can someone run process/plumbing piping along the length of the firewall?
If so, does the system need any break-away hangers to comply?
Combustible materials such as, but not limited to, cabling, nonmetallic plumbing piping, nonstructural wood etc. shall not run along the length of firewall.
Seismic force protection for sprinkler piping to be checked with NFPA - 13 and process with power piping - ASME B31.1 / B31E (AG piping). Where necessary, it is recommended that the support near the valve discharge be connected to the run pipe, header, or vessel rather than to adjacent structures in order to minimize differential thermal expansion and seismic interactions.
Plumbing piping shall be securely attached to the structure by proper hangers, clamps, or brackets that provide protection against damage from motion, vibration, road shock, torque in the chassis, or other unusual conditions.
Hope this is helpful.
Thank you, Sourabh. Can you please provide the code section(s) for us?
As per BS:9999 - clause no. 31, The spread of fire within a building can be restricted by subdividing the building into compartments, separated from one another by walls and/or floors of fire-resisting construction. The same approach can be applied to prevent fire spread between buildings that are close together. Compartmentation, horizontal or vertical, can also be used as part of an escape strategy to create areas of relative safety.
Nonmetallic plumbing piping, nonstructural wood etc. shall not run along the length of firewall, to have a fire in case to grab, on either side of wall to add more fire load and HRR shall be increased.
Comedic responses aside,
A firewall is structurally independent. If there was some serious heavy equipment, or something that could create lateral forces that could affect the integrity of the firewall, I may request a letter from an engineer. Otherwise, I wouldn't worry about the piping.
As far as the fire load, I can stack oak pallets next to that wall. The fire load would have been taken into consideration when determining occupancy type/use.
This one smells like pineapple, like a grain of sand in an oyster, cognitive irritation stimulates creativity. The plumbing pipe was considered as non metallic which would increase the HRR and have no obvious purpose other than to satisfy a whim.
If fire, the process / plumbing pipe will get more plume (considering the growth) as the fire at fire wall zone will not cross the other zone, is obvious. You could change the routing of process / plumbing piping to have a way forward.
Hazard study in this fire zone; shall be considered while piping at the same places or to have an equipment in this arena.
Please refer NFPA - 101, 5000, 1 and ASME B31.1 (chapter -II - Design / 124.7, 124.9 & 102.3.2)
I agree it smells - but like something other than pineapple. I guess I could have asked if the "process" piping was 6-inches in diameter.. and for oxygen, or some other type of gas, perhaps?
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