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Fire Sprinkler Hydraulic Calculator (NFPA 13)

Try for free

Fire sprinkler hydraulics from plain text: NFPA 13 density/area demand, a tree system worked from the remote sprinkler to the supply with Hazen-Williams friction and fittings, the water supply check, and pipe friction loss.

Pricing

Pay per event

Rating

0.0

(0)

Developer

Jumble Mog

Actor stats

Bookmarked

Total users

Monthly active users

3 days ago

Last modified

Categories

Automation

Developer tools

Security

Systems, demands and pipes

requests

Optional

One request per entry, as a line of text or an object. System: the hazard ('light hazard', 'OH2', 'extra hazard group 1', or an occupancy such as 'office' or 'warehouse') or a density ('0.20 gpm/ft² over 2000 sq ft'), the sprinkler spacing ('12x15 ft spacing': along the branch lines x between them) and any of: K-factor ('K5.6', 'K8.0'), pipe sizes ('1 in branch lines', '2-1/2 in cross main', '4 in feed main'; the NFPA 13 pipe schedule by default), feed main length ('feed main 100 ft'), sprinkler height above the supply ('20 ft high'), the flow test ('70/50 psi at 1000 gpm' or 'static 70 psi, residual 50 psi at 1000 gpm'), 'dry system', pipe ('sch 10', 'cpvc', 'copper', 'C=100'), hose ('250 gpm hose', 'no hose'), backflow loss ('backflow 8 psi'). Demand: a hazard alone. Pipe: '150 gpm through 100 ft of 2 in schedule 40 with 2 elbows and a tee'. Object fields: type (system, demand, pipe), hazard, density, area, dry, k, coverage, spacing, spacingL, branchSize, crossSize, feedSize, feedLength, armLength, elevation, material, c, static, residual, testFlow, hose, backflow, flow, size, length, fittings, title, text.

Type:array

Default hazard

hazard

Optional

Hazard when a request gives neither a hazard nor a density (ordinary hazard group 1 by default).

Type:string

Options:

LHOH1OH2EH1EH2

Default pipe

material

Optional

Pipe when a request doesn't say (Schedule 40 steel by default).

Type:string

Options:

sch40sch10cpvccopper

Draw charts

charts

Optional

The pressure along the calculated path and the water supply graph, the demand, or friction loss curves.

Type:boolean

Default:true

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