Upright Sprinklers in Super Markets
Upright Sprinklers in Super Markets
(OP)
Why all super markets or Food Stores are protected with Upright sprinklers. Is it just because there is no flase ceiling or it has something to do with the flow pattern of the upright sprinkler or the smoke flow reduction or just to avoid obstuction in storage areas. Please provide any code requirement if possible. Thanks





RE: Upright Sprinklers in Super Markets
RE: Upright Sprinklers in Super Markets
However, when it comes to high pile storage, FM did a very extensive series of testing about 4 years ago and found the pendent head is superior for high challenge fires involving storage. This configuration allows the water to be directly discharged downward, where it's needed, as opposed to a pendent which requires the water to be directed upward, then back down to the fire by the deflector. That is why the flow and pressure demands of some upright heads are larger than the same K factor head used in the pendent position within the 8-9 tables. In very high celings, the upright heads are not even allowed for some configurations.
RE: Upright Sprinklers in Super Markets
1. In truss construction it's usually easier to riser nipple up, your crossmain might not always fit between the trusses (the A's and V's especially) so you won't be able to get all pendents within 12"-1" of the deck.
2. Uprights are usually a few cents cheaper per sprinkler, I think.
3. What if something got in the pipes? MIC, sediment (paper mills that use non city water), metal shavings, etc, on your small branch lines? Well it's going to collect right in that pendent type sprinkler orifice because of gravity.
RE: Upright Sprinklers in Super Markets
RE: Upright Sprinklers in Super Markets
RE: Upright Sprinklers in Super Markets
RE: Upright Sprinklers in Super Markets