Flowforge: Fire Sprinkler Kit

Flowforge puts a sprinkler fitter's daily math and reference tables in one fast, offline app. Built by a life-safety trades background, not a software company guessing at what the field needs.

HYDRAULICS

• K-Factor Flow — Q = K√P, solve for flow, pressure, or K

• Friction Loss — Hazen-Williams with real Sch 40 / Sch 10 / copper / CPVC pipe IDs

• Flow Test Analysis — project available gpm at 20 psi from static, residual, and test flow (Pro)

• Pitot Flow — outlet flow from pitot pressure and coefficient

• Pipe Volume — gallons per run with a running system total (Pro)

• Water Velocity and Elevation ↔ Pressure converters

SPACING & LAYOUT

• Sprinkler Spacing — max coverage and spacing by hazard and construction

• Hanger Spacing — steel, lightwall, copper, and CPVC tables

• Trapeze Sizing — section modulus from span and load, with the member picked for you (Pro)

• Obstructions — beam rule and three-times rule calculators (Pro)

• Deflector Position — distance below ceiling and storage clearance checks (Pro)

SYSTEMS & TESTING (Pro)

• Dry System Air — air pressure from supply static and valve ratio

• Pipe Pitch — drop over run for drainage

• Fire Pump Check — churn / 100% / 150% test points against the rated curve

• Standpipe Demand — Class I–III flow and pressure

• Main Drain Test — compare against baseline with the 10% rule

• Hydrostatic Test — required pressure and duration

REFERENCE

• K-Factor Chart — orifice sizes, threads, % of K5.6

• Temperature Ratings — classifications with glass bulb colors and frame colors

• NFPA 25 ITM — searchable inspection, testing, and maintenance frequencies (Pro)

• Pipe Data — OD, ID, gallons per foot, water-filled weight

• Fitting Equivalent Lengths — C=120 table with C-factor adjustments (Pro)

• Hazard Classifications, System Types, and every formula on one card

FREE VS PRO

12 tools are free forever, with a small banner ad. One inexpensive one-time purchase unlocks all 26 tools and removes ads permanently. No subscription. No account. No sign-in.

BUILT FOR THE FIELD

• Works 100% offline — riser rooms and basements have no bars

• Dark interface built for dim mechanical rooms

• Monospace results you can read at arm's length

Flowforge is a field reference, not an engineering authority. Always verify results against the adopted NFPA edition, product listings, approved drawings, and your AHJ.

From TapForge Studios — the maker of Pipeforge, Voltbox, Airforge, and Fireforge. Trade tools by the trades.