Products Description

Overview
FM approved sprinkler heads have been tested and certified by FM Global (Factory Mutual), which is a very important standard in industrial and commercial fire protection systems, meaning that the product has been rigorously tested for performance and safety and meets high standards for fire protection system design.
Features
Product Name: FM approved sprinkler heads
Material: Brass
K Factor: K5.6
Installation: Pendent
Response: Standard
Products Specification
FM approved sprinkler heads with different size and standard for option:
| Connection | K factor | Tempurature | Response Type | Glass Bulb |
|
1/2" (DN15) BSP |
K5.6@US (80@Metric)
|
57℃ | Standard | 5mm, Orange |
|
1/2" (DN15) BSP |
K5.6@US (80@Metric) |
68℃ | Standard | 5mm, Red |
|
1/2" (DN15) BSP |
K5.6@US (80@Metric) |
79℃ | Standard | 5mm, Yellow |
|
1/2" (DN15) BSP |
K5.6@US (80@Metric) |
93℃ | Standard | 5mm, Green |
|
1/2" (DN15) BSP |
K5.6@US (80@Metric) |
141℃ | Standard | 5mm, Blue |
FAQ
Q: Why choose FM Approved sprinkler heads?
Proven performance in fire suppression
Compliance with insurance requirements (especially if insured by FM Global)
Assurance of quality, durability, and reliability
Q: What types of sprinkler heads can be FM Approved?
FM Approval can apply to:
Pendant sprinklers
Upright sprinklers
Sidewall sprinklers
Concealed and recessed sprinklers
ESFR (Early Suppression Fast Response) sprinklers
CMSA (Control Mode Specific Application) sprinklers
Dry-type sprinklers
Q: How do I identify an FM Approved sprinkler heads?
FM Approved sprinkler heads are typically marked with:
"FM" stamped on the deflector or frame
A model number corresponding to the FM Approval Guide listing
Manufacturer identification
Q: How often should FM Approved sprinkler heads be inspected or replaced?
Follow NFPA 25 inspection, testing, and maintenance guidelines:
Visual inspections: annually
Functional testing: per NFPA schedule or manufacturer's instructions
Replacement: if damaged, corroded, loaded with foreign materials, or after 50 years (or earlier, depending on model)
Q: Can FM Approved sprinkler heads be used in residential settings?
FM Approved sprinkler heads are typically designed for commercial or industrial use. For residential applications, UL-listed residential sprinklers (e.g., per NFPA 13D or 13R) are usually specified.
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