Check Valves Toronto

Check Valves Toronto: UL 312 Listed and FM 1210 Approved Silent-Closure, Swing Check and Spring-Loaded Check Valves for Ontario Building Code, NFPA 13 and ANSI/CAN/UL/ULC 312 Fire Pump Discharge, Backflow Prevention and Sprinkler Water Supply

ValveAtlas supplies UL 312 Listed and FM Class 1210 Approved check valves including silent-closure non-slam, swing check, spring-loaded wafer, double-disc and grooved-end configurations to fire protection contractors, mechanical consultants and general contractors across Toronto, Mississauga, Brampton, Hamilton, Vaughan, Markham, Richmond Hill, Oshawa, Kitchener-Waterloo and London ON. Metro delivery, factory-coated ductile-iron bodies, stainless steel springs and EPDM resilient seats for -30 C Ontario winter service and OBC submittal packages for TFS.

This page is the technical reference for Toronto specifying engineers, sprinkler contractors, mechanical installers and civil underground contractors selecting check valve packages for airport fire mains, hospital campus loops, university campuses, colocation data centers and any NFPA 13 or NFPA 20 fire pump discharge and backflow prevention application, governed by the Ontario Building Code, ANSI/CAN/UL/ULC 312, NFPA 13 and NFPA 20.

Check valve range for Toronto fire protection projects

Type	SKU	Size	Max working pressure	Listings	Typical Toronto application
Silent-closure non-slam	UVC-NR-4F	4 inch / DN100 flanged	175 psi	UL 312, FM 1210	Fire pump discharge per NFPA 20, water hammer control
Silent-closure non-slam	UVC-NR-6F	6 inch / DN150 flanged	250 psi	UL 312, FM 1210	Fire pump discharge and sprinkler incoming main
Silent-closure non-slam	UVC-NR-8F	8 inch / DN200 flanged	250 psi	UL 312, FM 1210	Horizontal split-case fire pump discharge
Swing check	UVC-SW-6F	6 inch / DN150 flanged	175 psi	UL 312, FM 1210	Sprinkler water supply, standpipe isolation check
Swing check with lever and weight	UVC-SW-8F-LW	8 inch / DN200 flanged	175 psi	UL 312, FM 1210	Horizontal fire service main with ball drip
Spring-loaded wafer	UVC-WAFER-4	4 inch wafer	300 psi	UL 312, FM 1210	Compact installation between flanges, grooved piping
Double-disc wafer	UVC-DBL-6	6 inch wafer	300 psi	UL 312, FM 1210	Low-headloss high-flow fire pump discharge
High-pressure silent	UVC-NR-6F-HP	6 inch flanged	300 psi	UL 312, FM 1210	High-rise standpipe lower zone, fire pump high-pressure
Grooved-end silent	UVC-NR-6G	6 inch grooved	300 psi	UL 312, FM 1210	Grooved fire pump discharge, hospital and data center

Why Toronto contractors choose ValveAtlas check valves

UL 312 and FM 1210 dual listing for TFS acceptance. Every check valve we supply is UL 312 Listed (check valves for fire-protection service) and FM Class 1210 Approved. TFS accepts listed check valves with factory submittal, OBC compliance letter and NFPA 13 sprinkler water supply documentation.

Silent-closure non-slam for fire pump discharge. NFPA 20 requires listed check valve on fire pump discharge. UVC-NR silent-closure design uses spring-assisted center-guided disc to close before flow reversal, eliminating water hammer, pipe shock and column separation damage that plagues swing check valves on pump shutdown. Critical for Toronto fire pump rooms with long discharge runs.

Swing check for sprinkler incoming main. UVC-SW-4F through UVC-SW-10F flanged swing check valves with bronze or stainless disc, ductile iron body and renewable resilient seat. UL 312 Listed for sprinkler water supply, standpipe isolation check and hose valve riser check per NFPA 13.

Spring-loaded wafer for compact installation. UVC-WAFER-4 through UVC-WAFER-8 wafer-body spring-loaded check valves installed between ANSI Class 125/250 flanges with no external bolting. Ideal for Toronto mechanical rooms with limited space between pump discharge flange and downstream gate valve.

Double-disc for low-headloss high-flow. UVC-DBL-4 through UVC-DBL-10 double-disc (duo-check) wafer valves with spring-loaded twin discs provide lowest headloss and fastest closure for high-flow fire pump discharge service. UL 312 Listed and FM Class 1210 Approved.

Ductile iron body with fusion-bonded epoxy. UVC bodies are ductile iron ASTM A536 Grade 65-45-12 with factory-applied fusion-bonded epoxy coating per AWWA C550, rated for indoor dry-sidewall mount and wet pipe service. Stainless steel spring and shaft, EPDM or buna-N resilient seat and bronze seating surface rated for 175 psi / 250 psi / 300 psi working pressure.

Code and listing acceptance for Toronto

Ontario Building Code. The Ontario Building Code references NFPA 13, ANSI/CAN/UL/ULC 312 and NFPA 20 for fire sprinkler and fire pump check valves. Check valve selection must satisfy the sprinkler water supply and fire pump installation requirements. The UVC series ships OBC compliant.

NFPA 13 sprinkler water supply check. NFPA 13 requires listed check valve on sprinkler water supply connection to prevent backflow into public water main. UVC-SW and UVC-NR series satisfy this requirement. NFPA 13 also specifies check valve plus listed indicating control valve configuration.

NFPA 20 fire pump discharge. NFPA 20 requires listed check valve on fire pump discharge between pump and discharge gate valve. Silent-closure non-slam check preferred for water hammer control. UVC-NR-4F through UVC-NR-10F satisfy NFPA 20 discharge check valve requirement in all Toronto fire pump room installations.

Backflow prevention for potable water protection. Where sprinkler system connects to potable water main, double check valve assembly or reduced-pressure zone (RPZ) backflow preventer required per local water authority. UVC check valve series provides base check valve; RPZ/DCVA assemblies available as separate line item.

TFS acceptance. Toronto Fire Services (TFS) and Ontario Ministry of the Solicitor General Office of the Fire Marshal inspection references the Ontario Building Code, ANSI/CAN/UL/ULC 312, NFPA 13, NFPA 20 and manufacturer listing. Factory submittal with UL/FM/ULC certificates, functional test per NFPA 25 and hydrostatic test per AWWA C508 required for sign-off.

Approved-equal submittals

Where a specification names a specific manufacturer, we prepare an approved-equal submittal package (listing certificates, dimensional drawings and material data) for review by the engineer of record and the authority having jurisdiction.

Installation scenarios for Toronto check valves

Airport fire pump rooms and fire mains. Airport fire pump discharge with UVC-NR-8F silent-closure on horizontal split-case pumps, UVC-NR-6F on end-suction pumps and UVC-SW-8F-LW on fire service main with ball drip. Water hammer protection critical for long airside piping runs to terminals and cargo ramps.

Hospital campus fire pump and sprinkler. Toronto hospital campus fire pump rooms with UVC-NR-6F and UVC-NR-8F silent-closure discharge check, UVC-SW-6F sprinkler incoming main check and UVC-WAFER-4 compact installation at pre-action panel bypass. Redundant fire pump rooms per NFPA 20.

University campus standpipe and sprinkler. University building standpipe check valves with UVC-SW-6F and UVC-SW-8F at incoming main, UVC-NR-4F silent-closure at local fire pump discharge for high-rise research buildings and lab facilities. TFS acceptance with factory submittal.

Colocation data center fire pump and pre-action. Data center fire pump discharge with UVC-NR-6F silent-closure non-slam for zero water hammer on pump trip, UVC-DBL-6 double-disc for lowest headloss on high-flow systems and UVC-WAFER-4 at pre-action riser manifold. Tamper-supervised indicating valves upstream and downstream.

High-rise standpipe and sprinkler. Toronto high-rise standpipe zone check valves with UVC-NR-6F-HP 300 psi at lower zones and UVC-SW-6F 175 psi at upper zones. NFPA 14 compliant with backflow prevention on interconnections between pressure zones.

Related products for complete Toronto fire protection valve package

Gate valves. UVG-OSY OS&Y rising stem gate valves upstream and downstream of check valve per NFPA 20. See Gate Valves Toronto.

Butterfly valves. UVB-G310 grooved butterfly with integral tamper as indicating control valve alternative. See Butterfly Valves Toronto.

Fire pumps. UVFP-HSC, UVFP-ES and UVFP-VIL fire pumps with silent-closure check valve discharge per NFPA 20. See Fire Pumps Toronto.

Hydrants. UVH-5BR wet-barrel and UVH-3DRY dry-barrel hydrants with integral bronze check disc and drain. See Hydrants Toronto.

Frequently asked questions (Toronto)

Are these check valves accepted by TFS? Yes. Our check valves are UL 312 Listed and FM 1210 Approved. TFS accepts listed check valves with factory submittal, OBC compliance letter and NFPA 13 documentation.

Silent-closure vs swing check on fire pump discharge? NFPA 20 accepts both listed silent-closure and swing check on fire pump discharge. Silent-closure UVC-NR eliminates slam and water hammer on pump trip; swing check UVC-SW is lower cost and preferred on low-velocity sprinkler incoming mains. For Toronto fire pump rooms with long discharge piping or variable-speed drive (VSD), silent-closure is strongly recommended.

What causes check valve slam? Swing check valves close when flow reverses. On fast pump shutdown, flow reverses rapidly; disc slams shut, generating water hammer shock wave that can rupture piping. Silent-closure UVC-NR uses spring and center-guide to close disc before flow reverses, eliminating slam.

Do I need check valve upstream and downstream of fire pump? NFPA 20 requires check valve on discharge side only. Suction side has listed OS&Y gate valve (UVG-OSY). Check valve on suction is not permitted; suction must be flooded with positive pressure per NFPA 20.

Spring-loaded wafer vs flanged swing check? Wafer UVC-WAFER-4 and UVC-DBL-4 install between flanges with no external bolting, ideal for tight spaces. Flanged swing UVC-SW-6F has full flange connections with standard face-to-face dimensions. Choose wafer for compact pump rooms; flanged for standard service.

What is the delivery time to Toronto? Stock UVC-NR-4F, UVC-NR-6F and UVC-SW-6F ship 1 to 2 weeks. UVC-WAFER and UVC-DBL wafer stock 2 to 3 weeks. UVC-NR-HP 300 psi high-pressure factory-built ships 3 to 4 weeks. Metro freight from Toronto HQ 2 to 3 business days.

Contact ValveAtlas for Toronto check valve quotation

For check valve quotations, approved-equal submittals for TFS approval, or NFPA 13/14/20 check valve packages with silent-closure non-slam protection for airport airside, Toronto hospital campus, university campus, data center or high-rise standpipe projects, email the project mechanical drawings, pipe size, pressure class and fire pump curve to info@valve-atlas.com or use the contact form. Same-day response on Toronto urgent orders.