{"id":41797,"date":"2026-04-23T04:36:35","date_gmt":"2026-04-23T04:36:35","guid":{"rendered":"https:\/\/valve-atlas.com\/waterflow-switches-montreal\/"},"modified":"2026-04-26T01:06:23","modified_gmt":"2026-04-26T01:06:23","slug":"waterflow-switches-montreal","status":"publish","type":"page","link":"https:\/\/valve-atlas.com\/fr_ca\/waterflow-switches-montreal\/","title":{"rendered":"Waterflow Switches Montreal | UL 346\/FM 1049 Vane-Type Sprinkler Flow Switches | Valve-Atlas"},"content":{"rendered":"<style>\ndiv.va-loc { font-family: Outfit, -apple-system, sans-serif !important; max-width: 1200px !important; margin: 32px auto !important; padding: 0 24px !important; box-sizing: border-box; }\ndiv.va-loc h2 { border-bottom: 3px solid #0B5ED7 !important; padding-bottom: 8px !important; margin-top: 48px !important; margin-bottom: 20px !important; color: #021228 !important; font-size: 32px !important; }\ndiv.va-loc h3 { color: #021228 !important; margin-top: 32px !important; margin-bottom: 12px !important; font-size: 22px !important; }\ndiv.va-loc p { color: rgba(2,18,40,0.82) !important; line-height: 1.7 !important; margin-bottom: 16px !important; font-size: 17px !important; }\ndiv.va-loc ul { padding-left: 24px !important; margin: 16px 0 24px !important; }\ndiv.va-loc ul li { color: rgba(2,18,40,0.82) !important; line-height: 1.8 !important; margin-bottom: 8px !important; list-style: disc !important; font-size: 17px !important; }\ndiv.va-loc strong { color: #021228 !important; }\ndiv.va-loc a { color: #0B5ED7 !important; text-decoration: underline !important; }\ndiv.va-loc a:hover { color: #021228 !important; }\ndiv.va-loc table { border-collapse: collapse; width: 100%; margin: 24px 0; background: white; border: 1px solid #E2E8F0; border-radius: 8px; overflow: hidden; }\ndiv.va-loc table th { background: #021228; color: white; padding: 12px 16px; text-align: left; font-weight: 600; }\ndiv.va-loc table td { padding: 12px 16px; border-top: 1px solid #E2E8F0; color: rgba(2,18,40,0.82); }\ndiv.va-loc table tr:nth-child(even) td { background: #F8FAFC; }\ndiv.va-loc .va-regions { background: #F8FAFC !important; border: 1px solid #E2E8F0 !important; border-radius: 12px !important; padding: 24px 28px !important; margin: 32px 0 !important; }\ndiv.va-loc .va-regions h3 { margin-top: 0 !important; color: #021228 !important; }\ndiv.va-loc .va-regions ul { list-style: none !important; padding: 0 !important; display: grid !important; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)) !important; gap: 8px !important; }\ndiv.va-loc .va-regions ul li { list-style: none !important; margin: 0 !important; }\ndiv.va-loc .va-regions a { display: block !important; padding: 10px 14px !important; border: 1px solid #E2E8F0 !important; border-radius: 8px !important; background: white !important; color: #0B5ED7 !important; text-decoration: none !important; text-align: center !important; font-weight: 500 !important; }\ndiv.va-loc .va-regions a:hover { background: #0B5ED7 !important; color: white !important; }\n<\/style>\n<div class=\"va-loc\" style=\"max-width:1200px;margin:32px auto;padding:0 24px;font-family:Outfit,-apple-system,sans-serif;box-sizing:border-box;\">\n<h2 class=\"wp-block-heading\">Waterflow Switches Montreal: UL 346 Listed and FM 1049 Approved Vane-Type Sprinkler Waterflow Detectors for NFPA 13 Alarm Initiating Devices on Wet, Dry-Pipe, Pre-Action and Deluge Systems<\/h2>\n<p>ValveAtlas supplies UL 346 Listed and FM 1049 Approved vane-type waterflow switches (UVWF-100, UVWF-150, UVWF-200, UVWF-250, UVWF-300, UVWF-400 and UVWF-600) in sizes DN25 through DN150 (1&#8243; through 6&#8243;) with paddle sensor, pneumatic retard, two sets of SPDT contacts and tamper-resistant enclosure to fire protection contractors and mechanical subs across Montreal. UL 346 listing with no TSE-only references. Full submittal package for Service de securite incendie de Montreal (SIM) approval under CCQ Chapitre Batiment and CNB 2020.<\/p>\n<p>This is the technical reference for Montreal fire alarm designers, sprinkler contractors and system integrators selecting waterflow detection for Montreal-Trudeau (YUL), Bombardier Dorval, Place Ville Marie and McGill University. UVWF paddle mounts on tee saddle at main or floor control riser. Wet pipe SPDT alarm initiation with 0-90 second adjustable retard. Dry pipe, pre-action and deluge applications use pressure-type switches (see PS-10-1 series separately).<\/p>\n<h2 class=\"wp-block-heading\">UNIVAL UVWF waterflow switch product range<\/h2>\n<p>UVWF-100 through UVWF-600 covers DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN150 pipe sizes with matching paddle sensor for 1&#8243; to 6&#8243; sprinkler main. Each unit has two SPDT contacts (alarm + auxiliary), pneumatic retard timer adjustable 0-90 seconds for surge protection, and UL-listed weather-resistant steel enclosure with cover tamper switch option. NEMA 4X kit available for outdoor installation.<\/p>\n<h2 class=\"wp-block-heading\">Why Montreal contractors choose ValveAtlas waterflow switches<\/h2>\n<p><strong>UL 346 and FM 1049 dual listing.<\/strong> UL 346 (Waterflow Indicators for Fire Protective Signaling Systems) and FM 1049 (Waterflow Detectors). Every UVWF carries both listings with no TSE-only parts.<\/p>\n<p><strong>Pneumatic retard 0-90 seconds adjustable.<\/strong> NFPA 13 8.17.2 recommended retard prevents surge-related false alarms. Field-adjustable from closed-cell diaphragm, no batteries required.<\/p>\n<p><strong>Two sets of SPDT contacts.<\/strong> Primary contact for alarm panel, secondary for local bell or building management system. 10A rating at 125VAC.<\/p>\n<h2 class=\"wp-block-heading\">Competitor substitution for Montreal projects<\/h2>\n<p>Potter VSR-S\/VSR-F, System Sensor WFD, Viking VSR and Notifier VSR-F series all substitute one-for-one with UVWF at matching pipe size and contact configuration. Same UL 346 and FM 1049 listing. Factory submittal package for Service de securite incendie de Montreal (SIM) approval.<\/p>\n<h2 class=\"wp-block-heading\">Related Montreal fire protection products<\/h2>\n<p>See also: <a href=\"\/fire-sprinklers-montreal\/\">Fire sprinklers Montreal<\/a>, <a href=\"\/wet-alarm-valves-montreal\/\">Wet alarm valves Montreal<\/a>, <a href=\"\/dry-pipe-valves-montreal\/\">Dry pipe valves Montreal<\/a>, <a href=\"\/check-valves-montreal\/\">Check valves Montreal<\/a>.<\/p>\n<h2 class=\"wp-block-heading\">Contact ValveAtlas for Montreal waterflow switches quotation<\/h2>\n<p>Email UVWF quotation requests and Potter\/System Sensor\/Viking substitution submittals for Service de securite incendie de Montreal (SIM) approval to <a href=\"mailto:info@valve-atlas.com\">info@valve-atlas.com<\/a>.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Waterflow Switches Montreal: UL 346 Listed and FM 1049 Approved Vane-Type Sprinkler Waterflow Detectors for NFPA 13 Alarm Initiating Devices on Wet, Dry-Pipe, Pre-Action and Deluge Systems ValveAtlas supplies UL 346 Listed and FM 1049 Approved vane-type waterflow switches (UVWF-100, UVWF-150, UVWF-200, UVWF-250, UVWF-300, UVWF-400 and UVWF-600) in sizes DN25 through DN150 (1&#8243; through 6&#8243;)&hellip;<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"content-type":"","iawp_total_views":0,"footnotes":""},"class_list":["post-41797","page","type-page","status-publish","hentry","description-off"],"_links":{"self":[{"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages\/41797","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/comments?post=41797"}],"version-history":[{"count":5,"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages\/41797\/revisions"}],"predecessor-version":[{"id":42457,"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages\/41797\/revisions\/42457"}],"wp:attachment":[{"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/media?parent=41797"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}