Hydrants London: UL 246 Listed and FM 1510 Approved AWWA C502 Dry-Barrel and AWWA C503 Wet-Barrel Fire Hydrants for ADB 2019, BS 9990, BS 750 and LPCB LPS 1054 Municipal Fire Mains, Private Fire Service and Industrial Fire Water
ValveAtlas supplies UL 246 Listed, FM Class 1510 Approved and AWWA C502 (dry-barrel) and AWWA C503 (wet-barrel) fire hydrants including compression-type dry-barrel, wet-barrel, monitor (wall) hydrants and yard/industrial hydrants to fire protection contractors, civil underground contractors, municipalities and industrial facility owners across London, Greater London, Manchester, Birmingham, Leeds, Glasgow, Edinburgh, Bristol and the Thames Valley. Metro delivery, ductile-iron hydrant bodies with epoxy-lined interior, bronze operating mechanism, stainless hardware and safety break-flange for traffic collision protection designed for UK frostline 750 mm typical, Scotland 1.2 m, above-ground dry-barrel required for freeze zones service and ADB and BS 9990 submittal packages for LFB.
This page is the technical reference for London specifying engineers, civil underground contractors, fire protection engineers and municipal water utilities selecting fire hydrant packages for Heathrow (LHR), Gatwick (LGW), Stansted (STN) and Luton (LTN) airside distribution, Jaguar Land Rover Solihull, BAE Systems Barrow, Nissan Sunderland, Rolls-Royce Derby and Tata Steel Port Talbot industrial sites, Thames Water, Anglian Water, Severn Trent, Scottish Water and Yorkshire Water municipal fire-main distribution, University of London (UCL, KCL, Imperial, LSE, Queen Mary, Royal Holloway), Oxford and Cambridge campuses, Equinix LD1-LD11 Slough and London, Digital Realty Crossways and Chessington, Interxion LON1-LON3 and Virtus data centers and any BS 9990 Chapter 7 private fire service main or municipal fire hydrant installation, governed by Building Regulations Approved Document B (ADB) 2019, BS 9990, BS 9999 and BS 750 Specification for hydrants, LPCB LPS 1054 and BS EN 14339/14384.
Hydrant range for London fire protection projects
| Type | UNIVAL SKU | Main valve opening (MVO) | Max working pressure | Listings | Typical London application |
|---|---|---|---|---|---|
| Dry-barrel compression type | UVH-3DRY-5.25 | 5.25 inch MVO | 250 psi | UL 246, FM 1510, AWWA C502 | Municipal fire main with freeze-drain for Canadian and Northern US installations |
| Dry-barrel compression type | UVH-3DRY-6.0 | 6 inch MVO high-flow | 250 psi | UL 246, FM 1510, AWWA C502 | High-flow hydrant for industrial and airport apron |
| Wet-barrel monitor type | UVH-5BR-4.5 | 4.5 inch MVO | 250 psi | UL 246, FM 1510, AWWA C503 | Indoor parking garage monitor hydrant, heated enclosure outdoor |
| Dry-barrel with Storz connection | UVH-3DRY-STZ4 | 5.25 inch MVO, Storz 4 inch pumper | 250 psi | UL 246, FM 1510, AWWA C502 | Quick-connect hydrant for rapid deployment fire department apparatus |
| High-pressure dry-barrel | UVH-3DRY-HP | 5.25 inch MVO | 350 psi | UL 246, FM 1510, AWWA C502 | High-pressure fire loop for industrial and high-rise lead-in |
| Yard or industrial hydrant | UVH-YARD-2.5 | 2.5 inch yard single-nozzle | 250 psi | UL 246, FM 1510 | Small industrial site with single 2.5 inch nozzle |
| Break-flange traffic model | UVH-3DRY-BF | 5.25 inch MVO with break-flange | 250 psi | UL 246, FM 1510, AWWA C502 | Curbside or apron with vehicle collision protection, break-safe flange |
| Flush-type ground hydrant | UVH-FLUSH-6 | 6 inch ANSI flange | 250 psi | UL 246, FM 1510, AWWA C502 | Flush ground hydrant for airport apron or parking deck |
| Wall or monitor-style | UVH-WALL-2.5 | 2.5 inch wall-mount | 250 psi | UL 246, FM 1510 | Industrial building wall-mount monitor hydrant, fire brigade connection |
Why London contractors choose ValveAtlas hydrants
UL 246 and FM 1510 dual listing for LFB acceptance. Every UNIVAL hydrant is UL 246 Listed (hydrants for fire-protection service) and FM Class 1510 Approved. LFB accepts listed hydrants with factory submittal, ADB and BS 9990 compliance letter and BS 9990 Chapter 7 private fire service main documentation and AWWA C502 dry-barrel compliance certificate.
Dry-barrel compression type for freeze protection. UVH-3DRY series compression-type dry-barrel hydrants with main valve at the inlet base, automatic bottom drain opens when the hydrant is closed, and a dry barrel above the main valve prevents freeze damage. Critical for London installations in UK frostline 750 mm typical, Scotland 1.2 m, above-ground dry-barrel required for freeze zones. Standard bury depths 750 mm, 900 mm and 1.2 m BS 750 pit depths match local frostline requirements.
Wet-barrel monitor type for heated enclosures. UVH-5BR wet-barrel hydrants with integral nozzle valves on the barrel allow independent nozzle operation without closing the main. AWWA C503 listed; used for indoor parking garage monitors, heated enclosures, tropical exposures or below-frostline positive-drain municipal systems. Not recommended for freeze-exposed installations in London without heat trace.
Ductile iron with fusion-bonded epoxy. UVH bodies are ductile iron ASTM A536 Grade 65-45-12 with factory fusion-bonded epoxy interior and exterior coating per AWWA C550. Bronze seat, bronze operating nut, stainless steel stem and EPDM seal. 250 psi standard working pressure with 500 psi hydrostatic test per AWWA C502 Section 5.
Safety break-flange for traffic protection. UVH-3DRY-BF break-flange (or “traffic model”) hydrants include an engineered shear zone at the ground-line barrel so that a vehicle collision shears the upper barrel without damaging the buried main valve or supply main. Allows quick field replacement of the upper barrel without excavation. AWWA C502 Section 4.6 compliant.
Nozzle configuration customized to LFB. Standard London nozzle configuration is BS 336 2.5 inch instantaneous (round male coupling) or Storz 70 mm / 100 mm, with thread form matching local fire department apparatus hose couplings. Storz 100 mm quick-connect optional; LFB default is BS 336 instantaneous. Pentagon-head operating nut sized to LFB fire service wrench (typically 1-1/2 inch or 1-1/4 inch pentagon).
Direct substitution for AVK, Talis Hawle, Glenfield and Patterson. UNIVAL UVH-3DRY and UVH-5BR are UL 246/FM 1510/AWWA C502 listed equivalent to AVK Series 21/30, Talis Hawle Series 2820, Glenfield G-series, Hynds HYD-series and Patterson Pacific UK hydrants. LFB accepts listed equivalent substitutions with engineer-of-record approval, municipal water authority acceptance and factory submittal package.
Code and listing acceptance for London
Building Regulations Approved Document B (ADB) 2019, BS 9990, BS 9999. Building Regulations Approved Document B (ADB) 2019, BS 9990, BS 9999 references BS 9990 Chapter 7 and BS 750 Specification for hydrants, LPCB LPS 1054 and BS EN 14339/14384 for private fire service main hydrants. Hydrant spacing and coverage are governed by NFPA 1 Fire Code and local fire flow requirements. Municipal hydrants follow AWWA M17 Maintenance and NFPA 291 Flow Testing. UVH UNIVAL ships ADB and BS 9990 compliant.
NFPA 24 Chapter 7 private fire service main hydrant. NFPA 24 Chapter 7 specifies listed hydrant on private fire service main with indicating control valve (post indicator valve or wall indicator valve) upstream to allow isolation without main shutdown. UVH series satisfies NFPA 24 requirement for listed hydrants on private mains serving warehouses, industrial sites, campuses and data centers.
AWWA C502 dry-barrel hydrant. AWWA C502 governs dry-barrel hydrants with 3-inch to 6-inch MVO, compression-type main valve, and freeze-drain design. UVH-3DRY series meets AWWA C502 with 5.25 inch MVO standard, 6 inch high-flow option and 250 psi working pressure with 500 psi test. AWWA C502 Section 4.6 covers traffic break-flange provisions.
AWWA C503 wet-barrel hydrant. AWWA C503 governs wet-barrel hydrants for non-freeze climates with one main valve per nozzle. UVH-5BR series meets AWWA C503 for indoor monitor, heated enclosure and freeze-immune installations. Not appropriate for most London exterior applications without heat trace.
NFPA 291 flow testing. NFPA 291 governs fire flow testing of hydrants at residual and static pressure to validate hydrant color-coding (blue 1500 gpm and up, green 1000 gpm, orange 500 gpm, red under 500 gpm). All UVH hydrants ship unpainted body with customer-specified cap color per ISO 14 spec or per LFB standard color code.
LFB acceptance. London Fire Brigade (LFB), local water undertakers and UK insurers inspection references Building Regulations Approved Document B (ADB) 2019, BS 9990, BS 9999, BS 750 Specification for hydrants, LPCB LPS 1054 and BS EN 14339/14384 and manufacturer listing. Factory submittal with UL/FM/AWWA certificates, municipal acceptance test and hydrostatic test per AWWA C502 Section 5 required for sign-off.
AVK, Talis Hawle, Glenfield and Patterson substitution for London projects
Mueller Super Centurion A-423 dry-barrel. Substitute UVH-3DRY-5.25 or UVH-3DRY-BF at matching 5.25 inch MVO, 250 psi working pressure, bury depth and nozzle configuration. Same UL 246/FM 1510/AWWA C502 listing, ductile iron body with fusion-bonded epoxy, bronze main valve seat. London standard municipal and private fire main substitution with factory submittal package.
Kennedy K-81A dry-barrel. Substitute UVH-3DRY-5.25 or UVH-3DRY-6.0 at matching MVO, pressure class and bury depth. Same compression-type main valve and break-flange design. AWWA C502 compliant.
Waterous Pacer WB-67 dry-barrel. Substitute UVH-3DRY-5.25 at matching 5.25 inch MVO and bury depth. Same compression-type design with automatic bottom drain and bronze seat.
Clow Medallion F-2545 dry-barrel. Substitute UVH-3DRY-5.25 or UVH-3DRY-BF at matching 5.25 inch MVO and break-flange option. AWWA C502 compliant with matching bury depth.
AVK Series 21/30 dry-barrel. Substitute UVH-3DRY-5.25 at matching MVO and working pressure. Matching resilient seated main valve, ductile iron body and UL/FM/AWWA listing.
American Darling Mk 73. Substitute UVH-3DRY-5.25 or UVH-3DRY-BF. Same AWWA C502 compliance and compression-type design for municipal and private fire main service.
Installation scenarios for London hydrants
Heathrow (LHR), Gatwick (LGW), Stansted (STN) and Luton (LTN) airside distribution and apron hydrants. Airport fire main with UVH-3DRY-5.25 standard dry-barrel at terminal gates, UVH-FLUSH-6 flush ground hydrants on apron and taxiway perimeter for crash fire rescue (CFR) access, and UVH-3DRY-BF break-flange at vehicle-exposed curbs. FAA AC 150/5210-14 compliant hydrant spacing with 250 ft coverage per hydrant on airside.
Jaguar Land Rover Solihull, BAE Systems Barrow, Nissan Sunderland, Rolls-Royce Derby and Tata Steel Port Talbot industrial fire water and process safety. Industrial site private fire main with UVH-3DRY-6.0 high-flow hydrants for monitor tower refill, UVH-WALL-2.5 wall-mount hydrants on building face for brigade connection, and UVH-3DRY-HP 350 psi high-pressure on foam suppression header. NFPA 24 Chapter 7 compliant with listed control valves upstream.
Thames Water, Anglian Water, Severn Trent, Scottish Water and Yorkshire Water municipal fire main distribution. Municipal street hydrants with UVH-3DRY-5.25 standard 5.25 inch MVO at 300 ft to 500 ft spacing per ISO fire flow requirements. Break-flange option UVH-3DRY-BF for curbside and intersection placements. AWWA M17 maintenance and NFPA 291 flow testing compliant.
University of London (UCL, KCL, Imperial, LSE, Queen Mary, Royal Holloway), Oxford and Cambridge campus and Equinix LD1-LD11 Slough and London, Digital Realty Crossways and Chessington, Interxion LON1-LON3 and Virtus data center. Campus and data center private fire loop with UVH-3DRY-5.25 at 300 ft spacing, UVH-3DRY-HP 350 psi near fire pump discharge and UVH-WALL-2.5 wall-mount at building face for fire brigade connection. NFPA 24 compliant with Post Indicator Valve (PIV) isolation upstream of each hydrant.
High-rise standpipe and fire pump room. London high-rise buildings with UVH-3DRY-5.25 at primary ingress and UVH-WALL-2.5 wall-mount in mechanical yards serving fire pump room test header. Supports fire pump flow test per NFPA 25 Chapter 8.
Related products for complete London fire protection valve package
Gate valves. UVG-OSY OS&Y rising stem gate valves and UVG-NRS non-rising-stem post indicator valves upstream of hydrant per NFPA 24. See Gate Valves London.
Post indicator valves. UVPIV-BG post indicator valves as the indicating control valve on hydrant isolation per NFPA 24. See Post Indicator Valves London.
Fire pumps. UVFP-HSC, UVFP-ES and UVFP-VIL fire pumps feeding the hydrant loop per NFPA 20. See Fire Pumps London.
Check valves. UVC-NR silent-closure and UVC-SW swing check valves for fire pump discharge and sprinkler water supply per NFPA 13 Section 16.8. See Check Valves London.
Frequently asked questions (London)
Is UNIVAL accepted by LFB? Yes. UNIVAL hydrants are UL 246 Listed, FM 1510 Approved and AWWA C502 (dry-barrel) or AWWA C503 (wet-barrel) compliant. LFB accepts listed hydrants with factory submittal, ADB and BS 9990 compliance letter, BS 9990 Chapter 7 documentation and municipal water authority acceptance.
Dry-barrel vs wet-barrel for London? Dry-barrel is the default for London given UK frostline 750 mm typical, Scotland 1.2 m, above-ground dry-barrel required for freeze zones. Wet-barrel is only appropriate for heated enclosures, indoor parking garage monitor hydrants or heat-traced installations. UVH-3DRY is the standard specification for outdoor London municipal and private fire main service.
What bury depth do I specify? Bury depth matches local frostline. London standard bury depths are 750 mm, 900 mm and 1.2 m BS 750 pit depths. Municipal water authority or engineer-of-record determines exact bury depth from soil survey. Hydrant comes with fixed bury; no field adjustment.
What nozzle configuration? Standard London configuration is BS 336 2.5 inch instantaneous (round male coupling) or Storz 70 mm / 100 mm. Storz 100 mm quick-connect optional; LFB default is BS 336 instantaneous. Pentagon-head operating nut sized per LFB fire service wrench. Thread specified per factory order to match fire department couplings.
What is the pressure rating? Standard UVH-3DRY is 250 psi working pressure with 500 psi hydrostatic test per AWWA C502. UVH-3DRY-HP high-pressure option is 350 psi working pressure for industrial high-pressure loops and high-rise lead-ins. UVH-5BR wet-barrel is 250 psi AWWA C503.
What is the delivery time to London? Stock UVH-3DRY-5.25 at standard bury depths ships 2 to 4 weeks. Break-flange UVH-3DRY-BF and high-pressure UVH-3DRY-HP factory-built 4 to 6 weeks. Custom nozzle threads and Storz options 6 to 8 weeks. Metro freight from Toronto HQ 3 to 5 business days.
How do I substitute AVK, Talis Hawle, Glenfield and Patterson on a London project? Submit substitution letter with UNIVAL UL 246/FM 1510/AWWA C502 certificates, factory submittal drawing, municipal water authority pre-approval and BS 9990 Chapter 7 compliance. Engineer-of-record approval follows; LFB accepts listed equivalent substitutions.
Contact ValveAtlas for London hydrant quotation
For hydrant quotations, AVK Series 21/30, Talis Hawle Series 2820, Glenfield G-series, Hynds HYD-series and Patterson Pacific UK hydrants substitution submittals for LFB approval, or NFPA 24 Chapter 7 hydrant packages with AWWA C502 dry-barrel freeze protection for Heathrow (LHR), Gatwick (LGW), Stansted (STN) and Luton (LTN) airside, London municipal main, industrial site, university campus, data center or high-rise lead-in projects, email the project civil drawings, bury depth, nozzle configuration and fire flow requirement to burakpadr@gmail.com or use the contact form. Same-day response on London urgent orders.