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Horizontal Sidewall Sprinkler Heads can be an efficient design solution for fire protection systems in both commercial and residential structures. Designed to be mounted along walls rather than ceilings, these sidewall spray sprinklers provide optimal coverage in areas where running overhead pipe isn’t ideal. QRFS offers UL Listed and FM Approved sprinklers that meet NFPA 13, 13D, and 13R standards for performance and safety.
With standard response, quick response, and residential fast response options, our sidewall fire sprinkler heads are ideal for a variety of spaces, from hotel rooms and offices to industrial environments and apartments. The deflector distributes water in a crescent pattern, efficiently covering a minimum to maximum area, depending on system design, while ensuring proper fire control.
Our sidewall fire sprinkler heads are engineered for various systems and occupancy classifications, making them suitable for various building purposes and construction types. Whether you need standard coverage sprinklers or extended coverage models in different K-factors and response types, we carry a broad range of products from trusted manufacturers, including Reliable, Senju, Tyco, Victaulic, and Viking.
Horizontal sidewalls can be installed in spaces where piping through ceilings isn’t practical, simplifying the design of fire protection systems while meeting code requirements for wall-mounted configurations. Each sprinkler’s QRFS product page includes the manufacturer’s data sheet and a summary of key technical details, including temperature ratings, K-factors, and finish options to match your system’s specifications.
Horizontal sidewall sprinkler heads are a popular choice for residential fire protection systems because they offer functional and practical advantages in specific scenarios. By installing the sprinklers along the wall rather than in the ceiling, designers and contractors can avoid running pipe through unconditioned attic spaces—a common design problem for homes in colder climates.
This design choice is especially useful in single-family homes, townhouses, and multi-family residential buildings. Since attics or ceiling spaces are often freezing areas during winter months, avoiding overhead piping helps minimize risk, reduce the need for costly dry systems, insulation, or heat tape, and simplify installation.
Quick Response Fire Supply stocks thousands of sprinkler heads and accessories while providing expert support and fast shipping.
If you are shopping for additional fire sprinklers and system parts:
What is a horizontal sidewall fire sprinkler?
A horizontal sidewall sprinkler is a fire sprinkler head mounted on a wall or an exposed vertical supply pipe rather than overhead like a pendent. They are designed to discharge water outward in a half-circle spray pattern, typically featuring a deflector that directs water away from the wall and down into the protected space. These sprinklers are commonly used where ceiling piping is impractical or undesirable.
How do horizontal sidewall sprinklers work?
Horizontal sidewall sprinklers activate when heat from a fire reaches a specific temperature threshold, causing the thermal element (a glass bulb filled with heat-sensitive liquid or a fusible link with meltable solder) to release. Once activated, water flows through the orifice and hits the deflector, which shapes the spray pattern. This pattern is engineered to cover a defined area efficiently from a wall-mounted position.
Where are horizontal sidewall sprinklers typically installed?
These sprinklers are often installed in hotel rooms, corridors, offices, and residential spaces where ceilings may be finished or inaccessible. They are ideal for areas with limited ceiling space or where running overhead piping is difficult. Their wall/side-mounted design also makes them a popular choice for retrofits and renovations.
What makes horizontal sidewall sprinklers different from pendent and upright sprinklers?
Unlike pendent and upright sprinklers, which are typically mounted on ceilings or overhead pipes, horizontal sidewall sprinklers are mounted on walls or vertical pipes and discharge water outward. Their spray pattern is asymmetrical, designed to project water away from the wall or supply pipe. This makes them better suited for specific room layouts and architectural constraints.
Are horizontal sidewall sprinklers suitable for residential use?
Yes, many horizontal sidewall sprinklers are specifically listed for residential applications. Manufacturers like Viking, Tyco, Victaulic, and Reliable offer models designed to meet residential fire protection standards with optimized spray patterns for these spaces. These sprinklers are commonly used in apartments, dormitories, and homes. One common application is to use sidewalls on the upper floors of homes rather than pendents, which would require installing water-filled pipes in attics that would freeze during winter.
What types of finishes and styles are available?
Horizontal sidewall sprinklers come in a wide range of finishes, including chrome, white polyester, brass, and custom coatings. Many models are also available in concealed or recessed designs to blend with interior décor. This flexibility allows them to meet both aesthetic and functional requirements.
What temperature ratings are available for horizontal sidewall sprinklers?
These sprinklers are available in multiple temperature ratings, which are indicated by the color of the glass bulb in glass-bulb sprinklers. Specific activation temperatures are also listed on sprinkler deflectors. Common ratings include ordinary (e.g., 155°F) and intermediate (e.g., 200°F), with higher ratings available for specialized environments. Selecting the correct rating depends on the system’s design specs, which take the ambient temperature of the installation area into account.
Do horizontal sidewall sprinklers have different coverage areas?
Yes, coverage varies by model, manufacturer, and listing, with some designed for standard coverage and others for extended coverage applications. Extended coverage sidewall sprinklers can protect larger areas, reducing the total number of heads required, but their use must be coordinated with the system’s design, including spacing, pressure, and flow specs. Always refer to the system design requirements, manufacturer data sheets, and NFPA standards to ensure proper spacing and coverage.
Can horizontal sidewall sprinklers be concealed?
Yes, many manufacturers offer concealed horizontal sidewall sprinklers with decorative cover plates. These covers sit flush with the wall and drop away when exposed to heat, allowing the sprinkler to activate. Concealed designs are popular in spaces where appearance is a priority.
What standards govern the installation of horizontal sidewall sprinklers?
Installation of horizontal sidewall sprinklers is governed by NFPA 13 for commercial systems and by NFPA 13D or 13R for residential systems. These standards specify spacing, placement, and design criteria to ensure proper fire protection. Specific manufacturer guidelines from companies like Victaulic, Tyco, Viking, Reliable, and Senju must also be followed for compliance and performance.