Early Suppression Fast Response (ESFR) Sprinklers

Viking’s Early Suppression Fast Response (ESFR) Sprinklers are high volume ceiling mounted sprinklers that exceed in the protection for severe challenging fires such as palletised and solid pile storage and single, double, and portable open rack storage (no open-top containers or solid shelves). A key advantage of an ESFR system over a Conventional sprinkler system is the possible elimination of the requirement for in-rack sprinklers in rack storage areas. ESFR systems are also specially designed to suppress the fire by discharging a large volume of water directly to the fire to reduce the heat release rate, while regular systems aim to simply control the fire.

Viking’s Model VK514 is now FM Approved as a Quick Response Storage Sprinkler providing ceiling-only sprinkler protection for storage facilities up to 16.7m in height. The K28 ESFR can help increase racking flexibility while also reducing the installation and maintenance costs associated with in-rack sprinklers. It has a Design Pressure of 5.5 bar. The K28 is available in ordinary and intermediate temperature ratings - 74° C and 96° C.

Pendent Style Sprinklers

	Pendent and Recessed Pendent	Flate Plate Concealed Pendent	Domed Concealed Pendent	Flush Concealed Pendent
3.0K	VK470 (p/n 17147) Temp Range 68-79°C	VK496 (p/n 22773) Temp Range 68-93°C
4.3K	VK430 (p/n 09530) Temp Range 68-79°C
4.9K	VK468 (p/n 13637) Temp Range 68-79°C	VK494 (p/n 20759) Temp Range 68-93°C	VK468-D (p/n 13637-X) Temp Range 68-79°C	VK476 (p/n 15630) Temp Range 74°C
5.2K	VK466 (p/n 13781) Temp Range 68-79°C
5.8K	VK472 (p/n 16130) Temp Range 68-79°C	VK498 (p/n 22037) Temp Range 68-93°C
7.4K	VK458 (p/n 13230) Temp Range 68-79°C

Non-Pendent Style Sprinklers

	Upright	Horizontal Sidewall	Flat Plate Concealed Sidewall
3.0K		VK479 (p/n 19709) Temp Range 68°C
4.0K		VK486 (p/n 17315) Temp Range 68-79°C	VK480 (p/n 1611AC) Temp Range 74-96°C
4.2K		VK484 (p/n 16240) Temp Range 68-79°C
4.9K	VK467 (p/n 19154)
5.8K		VK460 (p/n 13933) Temp Range 68-79°C	VK490 (p/n 20409) Temp Range 64°C

Dry Pendent ELO Sprinklers

Viking’s Standard Response and Quick Response Dry Pendent ELO Sprinklers are the first of their kind as the only FM Approved ELO dry barrel models. With a nominal K-factor of 11.2 (161), the new sprinklers can reduce the overall water demand required in many cold storage sprinkler systems, particularly where ceiling heights are 35 ft. (10,5 m) and below. By reducing water supply requirements, Viking’s new dry ELO sprinklers can help lower system costs by possibly eliminating the need for a fire pump and reducing the size of system piping and related components. Plain barrel, standard adjustable, and recessed adjustable models are all available in both standard and quick response options.

• The only FM Approved ELO dry barrel pendent sprinkler.
• Ideal for a wide variety of low temperature commercial and cold storage applications subject to temperatures below 40° F.
• 1 ¼” barrel and thread size – requires 1 ¼” tee.
• Lengths in 6” increments from 12” to 48” (305 to 1,219 mm) for plain barrel, standard adjustable, and recessed adjustable models.
• Available in ordinary, intermediate, and high temperature ratings; 165° F (74° C), 205° F (96° C), and 280° F (138° C).

WetSystem

When a sprinkler (1) opens, the discharging water lifts the alarm valve clapper (2) and flows through the alarm port (3) to the retard chamber (4). When the retard chamber is filled, water flows to the water motor alarm and/or the optional pressure switch (5) which signals an electric alarm bell (6).

Wet, Dry, Deluge & Preaction

There are 4 common types of sprinkler systems, Wet, Dry, Deluge & Pre-Action.

WET

Wet systems are the most common as they are the simplest of the 4 and usually require the least maintenance.

DRY

Dry systems designed for environments with freezing temperatures like walk-in refrigerators, loading docks, and warehouses. The piping does not contain any water, it is charged with air or nitrogen under pressure.

DELUGE

Deluge systems are designed for when large quantities of water are needed quickly to control a fast-developing fire.

PRE-ACTION

Pre-Action systems are hybrid dry/wet fire protection systems. They are similar to a deluge system except the sprinklers are closed. Specifically designed to protect water sensitive facilities such as libraries, data centres and museums, etc.

Foam/Water Deluge Sprinkler System

When the detector (1) is activated by fire, a signal is sent to the VFR-400 Release Control Panel (2). The panel sends appropriate alarm signals and, at the same time, signals the release of the solenoid valve (3). The deluge valve priming chamber (4) is then vented faster than water is supplied through the restricted orifice (5), allowing the deluge valve to open. When the deluge valve operates, pressure opens the pressure operated relief valve (PORV) (6) continuously venting the water to the priming chamber, ensuring the deluge valve remains in the open position. Trim piping, tied into the priming chamber of the Halar-coated concentrate control valve (7), allows that valve to open at approximately the same time, opening the foam concentrate line to the sprinkler system. The outer shell of the bladder tank (8), pressurized by system water, squeezes foam concentrate out to the proportioner (9). As water flows through the venturi area of the proportioner, a metered pressure drop draws foam concentrate into the system water creating a foam solution mixed to the appropriate ratios. This solution then flows through the sprinkler piping and out to the open sprinklers or nozzles (10)

Wet, Dry, Deluge & Preaction

There are 4 common types of sprinkler systems, Wet, Dry, Deluge & Pre-Action.

WET

Wet systems are the most common as they are the simplest of the 4 and usually require the least maintenance.

DRY

Dry systems designed for environments with freezing temperatures like walk-in refrigerators, loading docks, and warehouses. The piping does not contain any water, it is charged with air or nitrogen under pressure.

DELUGE

Deluge systems are designed for when large quantities of water are needed quickly to control a fast-developing fire.

PRE-ACTION

Pre-Action systems are hybrid dry/wet fire protection systems. They are similar to a deluge system except the sprinklers are closed. Specifically designed to protect water sensitive facilities such as libraries, data centres and museums, etc.

Valves & Systems

Viking offers customers a wide range of vales and systems, from Butterfly Valves through to Wet Pipe Systems. Our individual item page attachments gives you access to a wealth of information on each product.

For over 100 years, Viking has been a trusted name in fire protection. Our reputation has been earned by delivering unmatched product quality, integrated solutions, and experienced customer service and technical support at every point in your project process. We offer thousands of the finest fire protection products through Viking SupplyNet, our global network of distribution and fabrication centers.

Now you can rely on Viking for all your foam-water fire suppression needs. Our complete systems, backed by our decades of experience and the highest level of customer support, give you a seamless, integrated fire protection solution.

Foam System Solutions

Viking foam systems are designed to distribute a foam-water solution to a specific hazard area within a protected facility. Typical facilities include incineration plants, logistic centers, aircraft hangars, refineries, and many other areas where flammable liquid spill fires could occur. The type and potential size of the hazard determines the number of discharge devices, type of foam concentrate, and foam-water discharge rate and duration. Characteristics of some flammable products may require higher densities and special foam liquid concentrates.

NFPA 11 and EN13565-2 contain requirements for foam-water systems, with requirements for foam systems also found in NFPA 13, NFPA 16, NFPA 30, NFPA 409, and NPFA 418.

Viking - Tested and Trusted

Viking Foam Systems are FM Approved to FMS130 and UL Listed to UL162. These test standards require that foam system components – including foam concentrate, proportioning devices, storage tanks, and discharge devices - are tested together and approved or listed as a complete system. Many Viking products have also been tested to local approval standards. See Viking technical datasheets for details.

Viking Bladder Tanks carry ASME BPVC Certification, and conform to the rules governing the design, fabrication, assembly, and inspection of boiler and pressure vessel components during construction.