{"id":"sprinkler-dry","version":"0.6.0","classification":{"uniformat":"D4010"},"names":["Sprinkler system, dry pipe"],"aliases":["dry system","dry valve","dry sprinkler"],"service_life":{"median_years":32.5,"range_years":[20,50],"range_basis":"source_spread"},"pm_tasks":[{"task":"Check control valve position (unsupervised valves)","frequency":"P1M","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":51,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Check dry valve enclosure heating before freezing weather","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":51,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Test low temperature alarm before freezing weather","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":51,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Check control valve position (supervised valves)","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":51,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Operate alarm test valve to test water flow alarm","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":51,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Check alarm test valve alignment and tamper switch","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":51,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Visually inspect dry valve exterior, gauges and trim","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":51,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Check valve pressure and hydraulic nameplate legible","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":51,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Check quick-opening devices are in normal position","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":51,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Conduct main drain test and compare with past results","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":51,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Check fire department connection access and condition","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Check FDC for obstructions if caps are missing","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Check system check valve is not leaking","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Check FDC gaskets are present","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Lubricate FDC swivels if stiff","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Check ball drip drain works before cold season","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Drain low points before cold season","frequency":"P1Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Operate control valves through full travel","frequency":"P2Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Lubricate control valves and stems","frequency":"P2Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Check valve supervisory switches detect valve movement","frequency":"P2Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Trip test dry pipe valve","frequency":"P2Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Inspect dry valve internally and clean seat before reset","frequency":"P2Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Check priming water level before and after trip test","frequency":"P2Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Test quick-opening devices","frequency":"P2Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Test low and high air pressure alarms","frequency":"P2Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Inspect automatic air pressure maintenance device","frequency":"P2Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Inspect and clean strainers internally","frequency":"P5Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Calibrate or replace gauges","frequency":"P10Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"},{"task":"Replace dry barrel sprinklers","frequency":"P10Y","reference":"UFC 3-601-02 Fire Protection Systems Inspection, Testing, and Maintenance (7 October 2021, with Change 1, 18 April 2025)","url":"https://www.wbdg.org/FFC/DOD/UFC/ufc_3_601_02_2021_c1.pdf","page":52,"checklist":"Table 2-11 Dry Pipe Automatic Sprinkler System ITM Tasks"}],"basis":[{"type":"public_document","life_type":"planning","title":"CNA e-Tool Estimated Useful Life Table","by":"U.S. Department of Housing and Urban Development","url":"https://www.hud.gov/sites/documents/eul_for_cna_e_tool.pdf","page":14,"code":"HUD CNA 3.6.1.1","label":"Building fire suppression sprinklers, standpipes","years":50,"note":"Same life for family and elderly properties. US multifamily housing. Neither HUD nor the municipal rows separate dry from wet systems; the same rows are cited for both."},{"type":"public_document","life_type":"accounting","title":"The Blue Mountains: POL.COR.19.04 Tangible Capital Assets Policy","url":"https://www.thebluemountains.ca/sites/default/files/2022-01/POL-COR-19-04-Tangible-Capital-Assets-Policy.pdf","page":11,"years":25,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Grey Highlands: By-law No. 2026-052, Tangible Capital Asset Policy A09-F-03","url":"https://greyhighlands.civicweb.net/document/406218/","page":11,"years":40,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Meaford: By-law 2020-83, Tangible Capital Asset Policy, Appendix A Estimated Useful Lives","url":"https://meaford.civicweb.net/document/103944/","page":17,"years":25,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Amherstburg: Tangible Capital Assets Policy, Appendix A: TCA Categories, Life Years, and Thresholds","url":"https://media-001-ca.cdn.govstack.com/amherstburg-006-ca/media/vjvhyh1g/2026-08-10-tangible-capital-assets-policy-rm.pdf","page":8,"years":20,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Parksville: Policy No. 6.16 Tangible Capital Assets","url":"https://parksville.civicweb.net/document/27036","page":9,"years":50,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."}],"confidence":{"grade":"C","sample_size":null},"open_questions":["HUD gives planning lives for US multifamily housing; the municipal rows are Ontario accounting lives. Neither is observed replacement data."],"contributors":["unfinished.one editors"],"last_reviewed":"2026-10-22","canonical_url":"https://unfinished.one/c/sprinkler-dry","versioned_url":"https://unfinished.one/c/sprinkler-dry/v/0.6.0","licence":"CC-BY-4.0","citation":"unfinished.one (2026). Sprinkler system, dry pipe, v0.6.0. https://unfinished.one/c/sprinkler-dry/v/0.6.0"}