Reliable™ RA6424SS286 Product Description
Reliable™ Model F1-56SS Upright Fire Sprinkler Head
Sprinkler Identification Number (SIN): RA6424
This Upright sprinkler features a Stainless Steel finish and a 286°F (141°C) temperature rating.
The Reliable™ Model F1-56SS Upright Fire Sprinkler is a standard response, standard coverage sprinkler with a 5.6 K-Factor. It includes a 3 mm heat-sensitive glass bulb, 1/2 in. NPT thread connection, and a stainless steel frame with a stainless steel deflector. The finish is Stainless Steel.
This upright sprinkler is rated for a maximum working pressure of 175 PSI and operates using a glass bulb that activates at 286°F.
The RA6424 must be installed in an upright position and in accordance with the instructions provided in the Reliable™ technical bulletin.
Reliable™ Upright Fire Sprinkler (RA6424) Listings and Approvals
Each RA6424 sprinkler is manufactured by Reliable™ and meets the following listings and approvals:
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UL Listed
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cULus Listed
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FM Approved
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CE Marked
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VdS Approved
RA6424 Upright Sprinkler – Design Specifications
The RA6424SS286 is intended for use in NFPA 13-compliant fire protection systems. It is suitable for wet pipe systems and carries a maximum working water pressure rating of 175 PSI (12.1 BAR). For detailed coverage areas, installation requirements, and hydraulic calculations, refer to the Reliable™ data sheet.
RA6424 Installation and Accessories
To avoid damaging the 1/2 in. NPT threads or sprinkler frame, use only the manufacturer-approved installation wrench. Follow torque specifications and installation guidance outlined in the technical bulletin.
Approved Accessories:
Sprinkler Wrench:
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Model W2
Guards and Shields:
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D-1 Guard (cULus)
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D-3 Guard & Shield (cULus)
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C-1 Guard (FM – available in type 316 stainless steel)
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C-3 Guard & Shield (cULus, FM)
Note: The above guard and shield accessories are not corrosion-resistant unless otherwise noted.
Available RA6424 Sprinkler Heads
This sprinkler head is available in Stainless Steel finish with the following temperature options:
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135°F (57°C)
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155°F (68°C)
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175°F (79°C)
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200°F (93°C)
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286°F (141°C)
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360°F (182°C)
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500°F (260°C)
