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
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- 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
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- Portable Extinguisher CO2 Parts
- Nozzles, Valves & Adapters
- Rivets
- Mobile Extinguisher CO2 Parts
- Recharge Equipment
- Sirens
- Knapsacks
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- AS1851 Testing Equipment
- Solo 365 Test Kit & Accessories
- Solo Kits
- Testifire Kits
- Smoke & Heat Heads
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- Poles
- Battery Charger & Batons
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- Universal Flame Detector Testers
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- Digital Multimeters
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- MX1 Addressable Fire Panels
- AS1668 Controls and Gas Controls for MX1
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- Documentation and Manuals
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- Batteries
- Cable
- Smoke, Heat, Co Alarms & Accessories
- AS1851 Testing Equipment
- Ancillaries
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- VESDA Life Expectancy 2015
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- Valves
- Butterfly Valves cw Monitor Grooved
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- Swing Check Valves Grooved
- Alarm Valves - Grooved
- Waste and Test Valves
- Water Motor Alarm Gongs
- Retard Chambers
- Mini Ball Valves Gauge Cocks
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- Brass Gate Valves Threaded
- Pressure Relief Valves
- Sprinkler Control Valve Assembly’
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- Lugged Butterfly Valve c/w Lever Handle + Gear Operator
- Double Check Valves
- Globe Throttling Valves Grooved
- Globe Throttling Valves Flange
- 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
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- 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
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- 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
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- Pear Bands
- Pear Bands HDG
- Nut Clips M10
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- Mounting Plates
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- Beam Clamps
- Shallow Saddles
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- Twist Clips
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- 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
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- 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
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- 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
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- Dual Hydrant Risers
- Tank Suction Adaptor
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- 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
- Flame Detection
- Conveyor System Detection
- Gaseous Suppression Systems
- Kidde WHDR Wet Chemical System
- Dry Chemical System
- Sentinel Vehicle Systems
- Stat-X
- Pressure Relief Dampers (PRD)
- Types of Kidde Gaseous Suppression (Clean Agent) Systems
- Coltraco - Ultrasonic & Safety Instrumentation
- Linear Heat Cable
- Fire Fighting Foam
- Passive Fire Equipment
- HYDRANT LANDING VALVES
- Cabinets
- Hardware & Fasteners
- Signage & Stickers
- Custom Engraved Sign
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- Signs and Labels
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- Fire Blanket Location Signs
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- Water & Mechanical
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- Fire Hose Reel & Fire Signs
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- Custom Block Plans
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- 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)
