How to determine number of alarm check valves?
How to determine number of alarm check valves?
(OP)
For a warehouse with the dimensions of 170mx117mx12m, a wet pipe sprinkler system must be provided. In NFPA-13, section 5-2 states maximum floor area for a storage to be protected by one sprinkler riser shall be 3716m2
So, in this warehouse at least 6 risers must be installed:
floor area: 170x117=19890m2, min no of risers=19890/3716=5.3~ 6
My question is how many "alarm check valves" this system requires?
Can I just select one 8" alarm check valves with say 8 risers for this system
So, in this warehouse at least 6 risers must be installed:
floor area: 170x117=19890m2, min no of risers=19890/3716=5.3~ 6
My question is how many "alarm check valves" this system requires?
Can I just select one 8" alarm check valves with say 8 risers for this system





RE: How to determine number of alarm check valves?
You can also contact your property insurance carrier for advice.
RE: How to determine number of alarm check valves?
Are these all wet systems????
RE: How to determine number of alarm check valves?
so, if the system requires say 8 alarm check valves, it also needs 8 fire department connection?
And one more question, since each alarm check valve supplies just one zone, can I choose just one "zone control valve assembly of 8" "?
Therefore, the system includes 8 alarm check valves, 8 zone control valves and 8 fire department connections
many thanks for your time
RE: How to determine number of alarm check valves?
Correct except you only need one FDC, assuming all 8 risers are feed by the same water supply.
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RE: How to determine number of alarm check valves?
Depends if you want all the risers in one place
Depends is there a fire pump involved
Depends
To many variables and can be laid out in different ways
RE: How to determine number of alarm check valves?