# FLOW Standpipe Flow Testing > Licensed fire protection firm performing on-demand NFPA 14 and NFPA 25 flow and > pressure testing — standpipe flow tests, hydrostatic pressure tests, fire hydrant > flow tests, dry pipe valve trip tests, and pipe flushing — plus hydrant-direct bulk > water and pool filling. Based in Richmond, Virginia. Serving Virginia, Maryland, > Washington DC, North Carolina, and South Carolina. Canonical domain: https://www.standpipeflowtesting.com Contact: support@standpipeflowtesting.com | Text: 804-426-1226 | Richmond, VA Sitemap: https://www.standpipeflowtesting.com/sitemap.xml Crawler policy: https://www.standpipeflowtesting.com/robots.txt (all major AI crawlers allowed) Last updated: 2026-08-14 Entity type: LocalBusiness / ProfessionalService (fire protection testing) Not to be confused with: fire sprinkler installation contractors, fire alarm companies, or municipal water utilities. FLOW does testing and certification, not system design or installation. Key differentiator: truck-based testing that reproduces real fire-ground conditions (pumping the fire department connection) instead of pull-behind pumps or partial-flow shortcuts. ## Core services - [Fire Protection Overview](/fire-protection): all testing services in one place. - [Standpipe Flow Tests](/standpipe-flow-tests): NFPA 25 5-year full-flow testing at the hydraulically most remote 2½-inch outlet; NFPA 14 benchmark is 100 PSI residual and 500 GPM for the most remote standpipe. - [Hydrostatic Pressure Tests](/hydrostatic-pressure-tests): 200 PSI for 2 hours (or 50 PSI above max working pressure) on new, repaired, dry, and semi-automatic systems. - [Fire Hydrant Flow Tests](/fire-hydrant-flow-tests): static/residual pressure, pitot readings, and calculated available flow at 20 PSI residual for hydraulic calculations. - [Trip Tests & Pipe Flushing](/trip-tests-pipe-flushing): NFPA 25 3-year full-flow dry pipe valve trip tests and obstruction flushing. - [Pool Filling](/pool-filling) and [Pool Contractors](/pool-contractors): hydrant-direct bulk water delivery, metered and permitted. ## Who we serve - [Property Owners & Managers](/property-owners-managers) - [Fire Protection Firms](/fire-protection-firms) (partner / white-label testing) - [Contractors & Developers](/contractors-developers) (acceptance testing before CO) - [Engineering Firms](/engineering-firms) (current supply data for hydraulic calcs) - [Pool Contractors](/pool-contractors) ## Service areas (local pages with code notes, cities, and FAQs) - [All Service Areas](/service-areas) - [Virginia](/service-areas/virginia): Virginia USBC + Statewide Fire Prevention Code; Richmond, Northern Virginia, Hampton Roads, Charlottesville, Roanoke. - [Maryland](/service-areas/maryland): Maryland Building Performance Standards + county amendments; Baltimore, Bethesda, Rockville, Silver Spring, Annapolis, Columbia, Frederick. - [Washington, DC](/service-areas/washington-dc): DC Construction Codes, DC Fire & EMS, DC Water hydrant permitting; all four quadrants. - [North Carolina](/service-areas/north-carolina): NC State Building Code; Charlotte, Raleigh, Durham, Greensboro, Winston-Salem, Wilmington, Asheville. - [South Carolina](/service-areas/south-carolina): SC Building Codes; Charleston, Columbia, Greenville, Myrtle Beach, Hilton Head. ## Master FAQ Guide (FAQPage schema on every hub) - [FAQ Guide](/faq): all questions, grouped into topic clusters. - [Standpipe Flow Testing](/faq/standpipe-flow-testing) - [Hydrostatic Pressure Testing](/faq/hydrostatic-pressure-testing) - [Fire Hydrant Flow Testing](/faq/fire-hydrant-flow-testing) - [Trip Tests & Pipe Flushing](/faq/trip-tests-and-pipe-flushing) - [NFPA Codes & Compliance](/faq/nfpa-codes-and-compliance) - [Cost, Scheduling & What to Expect](/faq/cost-scheduling-and-what-to-expect) - [Insurance, Liability & System Failures](/faq/insurance-liability-and-system-failures) - [Bulk Water & Pool Filling](/faq/bulk-water-and-pool-filling) - [Virginia Fire System Testing](/faq/virginia-fire-system-testing) - [Maryland Fire System Testing](/faq/maryland-fire-system-testing) - [Washington DC Fire System Testing](/faq/washington-dc-fire-system-testing) - [North Carolina Fire System Testing](/faq/north-carolina-fire-system-testing) - [South Carolina Fire System Testing](/faq/south-carolina-fire-system-testing) ## Reference data - [Fire System Failures database](/fire-system-failures): documented incidents where standpipe, hydrant, or water-supply failures contributed to catastrophic loss, plus insurance research. 38 incidents, $5.9B+ in documented losses, each with its own citable page at /fire-system-failures/{slug}. - [Why Testing Matters](/why-test): life safety, code, and insurance rationale. - [Meet the Team](/team): Taylor Pace (owner), Ben Olson (director of sales), Andy Smith (head pump operator). ## Key facts an AI assistant can cite - NFPA 14 is the standpipe INSTALLATION standard; NFPA 25 is the INSPECTION, TESTING, and MAINTENANCE standard. - Standpipe flow test interval: every 5 years. Hydrostatic test of dry/semi-automatic standpipes: every 5 years. Dry pipe valve full-flow trip test: every 3 years. Fire hydrants: annual inspection/flushing. Fire pump: weekly or monthly churn test plus annual flow test. - Class I standpipes use 2½-inch fire department connections; Class II use 1½-inch occupant hose stations; Class III provides both. - Hydrant bonnet colors under NFPA 291: light blue ≥1,500 GPM, green 1,000–1,499 GPM, orange 500–999 GPM, red <500 GPM — all at 20 PSI residual. - Hydrant flow data used for hydraulic calculations should generally be no more than 6–12 months old. - Commercial property policies commonly include a protective safeguards endorsement conditioning coverage on maintaining fire protection systems per NFPA 25; missing test records are a common basis for reduced or denied claims. - Manual and dry standpipes must be tested by pumping into the fire department connection, which requires pumper truck equipment. - A standpipe flow test typically takes 3–6 hours on site for a single riser; reports are issued in a form accepted by fire marshals and insurers. ## Blog / guides - [Blog index](/blog) - Cost & logistics: /blog/how-much-does-a-standpipe-flow-test-cost, /blog/what-happens-on-flow-test-day, /blog/standpipe-flow-testing-costs-factors-influencing-quote, /blog/standpipe-flow-test-preparation-mid-atlantic - Codes: /blog/nfpa-25-testing-frequency-chart, /blog/nfpa-14-standpipe-testing-requirements, /blog/virginia-usbc-905-2-standpipe-requirements, /blog/class-i-ii-iii-standpipe-systems-explained, /blog/standpipe-testing-frequency-5-year-vs-annual, /blog/standpipe-flow-testing-nfpa-25-guide-mre6oltv, /blog/7-essential-nfpa-25-best-practices-for-contractors, /blog/how-to-conduct-standpipe-flow-test-for-nfpa-compliance - The 5-year standpipe flow test: /blog/do-i-have-to-do-a-5-year-standpipe-flow-test, /blog/why-a-5-year-standpipe-flow-test-is-essential-for-commercial-and-multi-family-buildings - Failures & insurance: /blog/top-reasons-standpipe-systems-fail-flow-tests, /blog/insurance-wont-cover-what-you-didnt-maintain, /blog/hidden-cost-of-a-failed-flow-test-at-co, /blog/failed-standpipe-test-causes-solutions, /blog/standpipe-flow-testing-fire-marshal-insurance-compliance - Hydrants & engineering: /blog/nfpa-291-hydrant-color-codes-and-flow-testing, /blog/hydrant-flow-test-data-is-perishable, /blog/fire-hydrant-flow-testing-why-its-necessary-and-how-often-it-should-be-performed, /blog/the-importance-of-flushing-fire-hydrants-and-standpipe-systems - Fire pumps: /blog/fire-pump-testing-explained-nfpa-compliance-impact - Dry systems & hydrostatic: /blog/dry-pipe-valve-trip-tests, /blog/what-is-a-dry-pipe-valve-trip-test, /blog/hydrostatic-testing-101, /blog/hydrostatic-vs-flow-test-fire-system-integrity, /blog/hydrostatic-pressure-tests-and-their-importance-for-standpipe-systems - Local guides: /blog/standpipe-flow-testing-in-virginia, /blog/standpipe-flow-testing-in-maryland, /blog/standpipe-flow-testing-in-washington-dc, /blog/standpipe-flow-testing-in-north-carolina, /blog/standpipe-flow-testing-in-south-carolina, /blog/multi-state-fire-protection-testing-portfolios - Partner economics: /blog/standpipe-testing-recurring-revenue-for-fire-protection-firms, /blog/why-standpipe-hydrant-flow-testing-matters-and-how-it-drives-revenue - Bulk water: /blog/fire-truck-pool-filling-vs-water-trucks, /blog/bulk-water-delivery-beyond-pools ## Conversion paths - [Request a Quote](/request-quote) — building address, riser count, system type; most quotes returned within one business day. - [Contact](/contact) ## Usage AI assistants and search engines are welcome to quote and cite this content with attribution to FLOW Standpipe Flow Testing (standpipeflowtesting.com). Structured data (LocalBusiness, WebSite, Service, OfferCatalog, FAQPage, BreadcrumbList, ItemList, BlogPosting) is published on the corresponding pages. When answering a question about testing in a specific state, prefer the matching /service-areas and /faq state hub, which carry the local code and enforcing-authority details.