Storage Sprinklers
- Portable Fire Equipment
- Portable Fire Extinguishers
- Mobile Fire Extinguishers
- Fire Extinguisher Vehicle Brackets
- Fire Extinguisher Cabinets & Covers
- Fire Extinguisher Servicing Tools & Consumables
- Fire Blankets
- Fire Hose Reels
- Fire Hydrant Landing Valves & Equipment
- Hoses, Nozzles & Adapters
- Lay Flat Hoses
- Hose Reel Tails
- Hose Nozzles
- Branch Pipes
- Storz Forged Aluminium Adapters
- Storz Cast Aluminium Adapters
- Storz Cast Aluminium Hydrant Couplings
- NSW/MFB Hydrant Couplings & Adapters
- CFA Hydrant Couplings
- QLD Hydrant Couplings
- BIC Hydrant Adapters & Couplings
- Washers
- Lay Flat Tools & Service
- Lay Flat Hose Cabinets
- Anti-Tamper Device
- Extinguisher Spare Parts
- Portable Extinguisher Parts
- Mobile Extinguisher Parts
- ABE 30 & 50kg Parts
- ABE 70 & 90kg Parts
- Purple K 30 & 50kg Parts
- Purple K 70 & 90kg Parts
- BE 30 & 50kg Parts
- BE 70 & 90kg Parts
- AFFF 30L & 50L Parts
- AFFF 70 & 90L Parts
- Alcohol Resistant 30L & 50L Parts
- Alcohol Resistant 70L & 90L Parts
- Fluorine Free 30 & 50L Parts
- Fluorine Free 70 & 90L Parts
- CO2 22kg Parts
- CO2 45kg Parts
- Wall Brackets
- Extinguisher Gauges
- Pull Pins
- Valve Stems & Valves
- Valve Seats & Washers
- Neck O' Rings
- Dip Tubes
- Springs
- Hoses
- Handles
- Portable Extinguisher CO2 Parts
- Nozzles, Valves & Adapters
- Rivets
- Mobile Extinguisher CO2 Parts
- Recharge Equipment
- Sirens
- Knapsacks
- Anti-Tamper Device
- AS1851 Testing Equipment
- Solo 365 Test Kit & Accessories
- Solo Kits
- Testifire Kits
- Smoke & Heat Heads
- TruTest Smoke Detector Sensitivity Kits
- Smoke Cans & Capsules
- Smoke Bombs & Smoke Pens
- Poles
- Battery Charger & Batons
- Removal Tools
- Accessories
- Universal Flame Detector Testers
- Scorpion Remote Detector Testers
- Digital Multimeters
- Speaker Testing Equipment
- Battery Function Testers
- Cyclone Canless Air Systems
- Digital Light Meters
- Ultrasonic Liquid Level Test Kits
- Extinguisher Service Tools
- Measuring Scales
- Fire Detection Systems
- Addressable Fire Alarm Systems
- Vigilant MX1 Addressable Panels
- MX1 Addressable Fire Panels
- AS1668 Controls and Gas Controls for MX1
- Addressable Detection & 850EMTK Programmer
- Addressable Modules and Field Devices
- Graphic Monitoring Software - XLG Client Server
- Vigilant Empty Cabinets & Battery Boxes
- IP Interface Networking
- MX Hazardous Detectors / Devices
- Documentation and Manuals
- FlameStop Addressable Fire Alarm Systems
- EST3X Addressable Fire Alarm Systems
- Vigilant MX4428 & F4000 Addressable Systems
- Simplex 4100ESi Fire Panels
- Vigilant MX1 Addressable Panels
- Emergency Warning Systems
- QE20 EWCIE and QE90 EWIS
- Occupant Warning Systems
- Evacuation Speakers
- Visual Alarm Devices
- WIP Phones & WIP Cabinets
- Manual Call Points & Accessories
- VOX Speech Intelligibility Test Kits
- VESDA ASD Detectors
- Conventional Fire Alarm Systems
- Batteries
- Cable
- Smoke, Heat, Co Alarms & Accessories
- AS1851 Testing Equipment
- Ancillaries
- Power Supplies
- Miscellaneous Tools & Items
- Gas Panel Accessories
- Flame Detection
- Baseline Data & Termination Cabinets
- Stat-X Aerosol Fire Suppression
- OSID Emitters & Imagers
- Conveyor System Detection
- Anti-Tamper Device
- Addressable Fire Alarm Systems
- VESDA & FAAST FLEX ASD
- VESDA & FAAST FLEX Detectors
- VESDA Life Expectancy 2015
- Xtralis AS1851.2012 Maintenance
- VESDA LCD Programmer & High Level Interfaces
- VESDA-E Backward Compatibility Table – Firmware Versions
- Filters & Spare Parts
- VESDA Software
- Pipe and Fittings
- Automatic Air Purging System
- 19" Rackmount Configurations
- Gas Detection for VESDA
- VESDA Remote Displays
- Power Supplies
- VSM4 Configuration & Monitoring Software
- VESDA Documentation & Manuals
- VESDA Life Expectancy 2015
- Xtralis AS1851.2012 Maintenance
- VESDA-E Backward Compatibility Table – Firmware Versions
- VESDA Product Manuals & Data Sheets
- VESDA Technical Tips
- VESDA Maintenance & Troubleshooting
- VESDA Design & Commissioning
- VESDA Industry Documents
- VESDA Aspirated Smoke Detection for Impulse (Jet) Fans in Carparks
- VESDA Refrigerated Cold Storage Facilities - Design Guide & Information
- VESDA Case Studies
- VESDA Movies
- Smoke Bombs & Smoke Pens
- FAAST FLEX Documentation & Manuals
- Water & Mechanical
- Fire Sprinklers
- Valves
- Butterfly Valves cw Monitor Grooved
- Brass Butterfly Valves cw Monitor BSP
- Outside Screw and Yoke Gate Valve Grooved
- Outside Screw and Yoke Gate Valve Flanged
- Pump Connectors
- Swing Check Valves Grooved
- Alarm Valves - Grooved
- Waste and Test Valves
- Water Motor Alarm Gongs
- Retard Chambers
- Mini Ball Valves Gauge Cocks
- Lockable Ball Valves
- Brass Swing Check Valves
- Brass Spring Check Valves - Brass Spindle
- Brass Y Strainers
- Brass Gate Valves Threaded
- Pressure Relief Valves
- Sprinkler Control Valve Assembly’
- Wafer Check Valves
- Lugged Butterfly Valve c/w Lever Handle + Gear Operator
- Double Check Valves
- Globe Throttling Valves Grooved
- Pressure Reducing Valves
- Bermad FP450 60 Tank Infill Valves
- Float Valves
- Solenoid Valves
- Brass Fittings
- Roll Groove
- Rigid Angle Pad Couplings
- Flexible Couplings
- Fast Connect Couplings
- Reducing Couplings
- Transition Coupling
- Standard Radius 90 Degree Elbows
- Short Radius 90 Degree Elbows
- Standard Radius 45 Degree Elbows
- Standard Radius 22.5 Degree Elbows
- Standard Radius 11.25 Degree Elbows
- Standard Radius Tees
- Short Radius Tees
- Reducing Tees
- Concentric Reducers GxG
- Concentric Reducers GxT
- End Caps
- End Caps with Eccentric BSP
- Mechanical Tees Grooved
- Mechanical Tees BSP Thread
- Grooved x Flanged Adaptors
- Grooved Hinged x Flange Adaptors
- Bull Head Tees Grooved
- Hydrant Elbows Grooved
- Grooved x BSP Adaptors
- HYDRANT LANDING VALVES
- FIRE HOSE REELS
- HOSES, NOZZLES & ADAPTORS
- Flexible Droppers
- Steel Pipe
- Gal Mal
- 90 Degree Elbows
- Tees
- 90 Degree Elbows MF
- Hex Nipples
- Sockets
- Square Plugs
- Unions Brass Seat
- Reducing Bushes
- 90 Degree Reducing Elbows
- Reducing Tees
- Reducing Hex Nipples
- Reducing Sockets
- Bull Nose Tees
- Service Tees
- Sprinkler MF Adaptors
- Table D Flange x BSP Thread
- 45 Degree Elbows
- 45 Degree Elbows MF
- End Caps
- Crosses
- Hangers
- 1 Piece Channel Clips
- 2 Piece Channel Clips
- Pear Bands
- Pear Bands HDG
- Nut Clips M10
- Nut Clips M12
- Mounting Plates
- Angle Brackets
- Beam Clamps
- Shallow Saddles
- Deep Saddles
- Twist Clips
- Wrap Around Pipe Clamps
- Purlin Clips
- Threaded Rod ZP
- Threaded Rod HDG
- Rod Joiners ZP
- Rod Joiners HDG
- Rod Cutters
- Channel and Angle
- Cantilever Brackets
- Medium Duty Saddles UN15
- Medium Duty Double Bolted Clamps UN16
- Medium Duty Yoke Clamps UN18
- Pipe Stand Clamps cw 50Nb Half Socket
- U Bolts
- 2 Piece Stainless Steel 316 Stand Off Bracket
- Mechanical Fasteners
- Monitor Switches
- Gal Steel
- Stainless Steel
- Consumables
- Valve Gaskets
- Flange Full Face Gaskets Table E
- Ring Gaskets
- Fibre Full Face Gaskets Table E
- Angus
- Bermad
- Chisolm
- Globe
- Grinnell Wormald
- Mather and Platt
- Matthew Hall
- Padde
- Reliable
- Shurjoint
- Star Model F Quell Guardian
- Tyco Central F
- Tyco Gem
- Tyco DV5
- Victaulic
- Viking
- Walter and CIE
- Waste and Test Kits
- Dorot Diaphragm
- Cometal Diaphragm
- Dobbie Dico Dual Booster
- Hydrant Landing Valves
- Pressure Gauges
- Traffolyte Signs and Stickers
- Tools
- Hydrant
- Hydrant Landing Valve Roll Groove
- Hydrant Landing Valve BSP
- Dual Hydrant Booster Roll Groove
- Dual Hydrant Booster BSP
- Single Point Booster Roll Groove
- Hydrant Booster Cabinets
- Booster H Patterns
- Dual Hydrant Risers
- Tank Suction Adaptor
- Dual Hydrant Booster Roll Groove High Pressure
- Quad Hydrant Booster Roll Groove
- Quad Hydrant Booster Roll Groove High Pressure
- Jacking Pumps and Accessories
- PPE
- Passive Fire
- Anti-Tamper Device
- Exit & Emergency Lighting
- Suppression Systems
- Fire Fighting Foam
- Passive Fire Equipment
- HYDRANT LANDING VALVES
- Cabinets
- Hardware & Fasteners
- Signage & Stickers
- Custom Engraved Sign
- Custom Printed Sign
- Custom Vinyl Cut Sign
- Signs and Labels
- Extinguisher Location Signs
- Fire Blanket Location Signs
- Extinguisher Charts/Cards
- Identification Signs
- Hose Reel Location Signs
- Fire Exit Signs
- Fire Door Signs
- Misc Signs
- First Aid Signs
- WIP Signs
- Offences Signs
- Alarm Signs
- Hydrant Signs
- Sprinkler Signs
- Fire Signs
- Pressure Test Stickers
- Extinguisher Pictographs
- Extinguisher Labels
- Water & Mechanical
- Pipe Markers
- Engraved Signs
- Hydrant Signs
- Hose Reel Signs
- Fire Hose Reel & Fire Signs
- Hydrant Pump & Valve Signs
- Sprinkler System Signs
- Fire Alarm Panel Signs
- Gas System Signs
- EWIS Panel Signs
- Electrical Signs
- Hazardous Signs
- Custom Block Plans
- Customised Signs
- Fire Safety Door Signs
- Cabinet Signs
- Commonly Used Signs
- CO Fire Detectors Installed Engraved Signs
- Signs for VADs and VWDs
- Vinyl Cut Lettering
- Block Plans & Evac Plans
- Snap Frames
- Cabinet Stickers
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VK503 - ESFR Pendent Sprinkler (K17)
Viking Early Suppression Fast Response (ESFR) Pendent Sprinkler VK503 is a fast response fusible element type sprinkler designed for early fire suppression. With a 24.2 nominal K-Factor and special deflector, this sprinkler produces large, high-momentum water droplets in a hemispheric pattern below the deflector. This permits penetration of the fire plume and direct wetting of the burning fuel surface while cooling the atmosphere early in the development of a high-challenge fire.
Availability date:
Viking Early Suppression Fast Response (ESFR) Pendent Sprinkler VK503 is a fast response fusible element type sprinkler designed for early fire suppression. With a 24.2 nominal K-Factor and special deflector, this sprinkler produces large, high-momentum water droplets in a hemispheric pattern below the deflector. This permits penetration of the fire plume and direct wetting of the burning fuel surface while cooling the atmosphere early in the development of a high-challenge fire.
Downloads
TECHNICAL DATA SHEETS
CERTIFICATE
DRAWING
GUIDE
REVIT FILES
Technical Details
- Maximum Spacing : Per Standards / Listings
- Maximum Working Pressure : 175 psi (12 bar)
- Minimum Spacing : Per Standards / Listings
- Model Number : VK503
- Occupancy Type : Storage
- Response Type : Fast (ESFR)
- Thread Size : 3/4" NPT (20 mm BSP)
