Foam bladder tank location

[stfire]

According to NFPA 11:2024, is it possible to install a foam bladder tank inside the warehouse protected by sprinklers?

4.3.2.1.1
Foam concentrates and equipment shall be stored in a location not exposed to the hazard they protect.

Thank you for the comparison

 

[TravisMack]

As I understand, it must be in a separate room. It can't be out in the main warehouse area exposed to what is being protected.

 

[goutam_freelance]

You are right. You need to protect the foam bladder from the fire hazard at the protection site. It can be outdoors or housed in a noncombustible structure.

 

[stfire]

Thank you.
The DS FM 04-12, on the other hand, seems to allow installation in the protected area under certain conditions.
2.2.1 Equipment Location
2.2.1.1 Locate storage containers (e.g., foam concentrate), water tank, compressed gas cylinders,
proportioning equipment components, pumps, control/actuating valves, regulating devices, monitoring
devices, and the control panel) per the following as applicable:
A. In a room separate from the protected area.
B. So temperatures are maintained between 40°F (4°C) and 130°F (54°C), within the system
manufacturer’s listed limits of Approval and in accordance with the applicable recommendations in Data
Sheet 9-18, Protection Against Freeze-Up (See Section 3.2 for further information).
C. So as not to be subject to mechanical, chemical, climatic, or other conditions that can render them
inoperative or susceptible to accidental damage or operation.
D. Are fully accessible for inspection, testing, maintenance, and removal or replacement.

 

[UFT12]

NFPA 11

4.3.2.1 Storage Facilities.

4.3.2.1.1 Foam concentrates and equipment shall be stored
in a location not exposed to the hazard they protect.

4.3.2.1.2 If housed, foam concentrates and equipment shall
be in a noncombustible structure.

I believe that makes pretty clear.

 

[LittleInch]

Thank you.
The DS FM 04-12, on the other hand, seems to allow installation in the protected area under certain conditions.
2.2.1 Equipment Location
2.2.1.1 Locate storage containers (e.g., foam concentrate), water tank, compressed gas cylinders,
proportioning equipment components, pumps, control/actuating valves, regulating devices, monitoring
devices, and the control panel) per the following as applicable:
A. In a room separate from the protected area.
B. So temperatures are maintained between 40°F (4°C) and 130°F (54°C), within the system
manufacturer’s listed limits of Approval and in accordance with the applicable recommendations in Data
Sheet 9-18, Protection Against Freeze-Up (See Section 3.2 for further information).
C. So as not to be subject to mechanical, chemical, climatic, or other conditions that can render them
inoperative or susceptible to accidental damage or operation.
D. Are fully accessible for inspection, testing, maintenance, and removal or replacement.

Did you miss Item A???

"In a room separate from the protected area."

That's not IN the protected area, but SEPARATE.

 

[stfire]

you are right.
unfortunately, I have often seen bladder tanks located inside warehouses protected by sprinklers.
so according to DS FM 04-12 all points must be respected, from A to D.
thanks