Fusible Alloy Upright Fire Sprinkler (K80-72℃)

The K80-72℃ Fusible Alloy Upright Fire Sprinkler is a 3C-certified fire protection device with DN15 size and ±2℃ activation temperature tolerance. It adopts a fusible alloy mechanism, delivering reliable fire suppression performance for various indoor scenarios.

•Product Name：Fusible Alloy Upright Fire Sprinkler (K80-72℃)
•Material：Brass/Stainless Steel
•Size：DN15 (Equivalent to 1/2" BSPT, matching common size standards for DN15 sprinklers)
•K-Factor：K80
•Activation Temperature：72℃ (Fusible alloy activation mechanism)
•Temperature Tolerance：±2℃ (On activation temperature)
•Certification：3C Certified (China Compulsory Certification, meeting national fire safety standards)
•Nominal Pressure：5–50 bar（72.5–725 psi）
•Operating Temp：-20°C to +60°C
•OEM Service：Accepted
•Delivery Terms：FOB, CFR, CIF, EXW
•Payment Mode：T/T, L/C, PayPal, Western Union

Product category:

Water mist fire sprinkler

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Product Details

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Product Formation

This fire sprinkler is designed as an upright model, which is optimized for ceiling-mounted installation—its upward-facing structure ensures efficient water distribution to cover upper spaces when activated, making it suitable for offices, shopping malls, residential buildings, and light industrial areas. Equipped with a K80 flow factor, it provides a precise water flow rate that balances fire suppression efficiency and water usage, effectively controlling small to medium-sized fires. The core activation component is a high-quality fusible alloy, which melts at a standard temperature of 72℃ (with a ±2℃ tolerance) to trigger the sprinkler—this temperature setting avoids false activation due to normal ambient heat while ensuring timely response to fire-induced temperature rises.​

With a DN15 (1/2 inch equivalent) connection size, the sprinkler is compatible with common fire protection pipe systems, facilitating easy installation and integration into existing or new fire safety networks. It has obtained 3C certification (China Compulsory Certification), a rigorous national standard that verifies its compliance with safety, performance, and quality requirements for fire protection products, ensuring long-term reliability in actual fire emergencies. Additionally, the sprinkler is constructed with durable materials (typically brass or stainless steel, depending on configuration) that resist corrosion and wear, extending its service life even in humid or slightly harsh environments.

KEY WORDS： K80-72℃ fusible alloy sprinkler, DN15 upright fire sprinkler, 3C certified fire sprinkler, 72℃ ±2℃ fire sprinkler, K80 DN15 fire sprinkler, fusible alloy upright sprinkler, 3C approved K80 sprinkler, K80-72℃ DN15 fire suppression sprinkler, China, manufacturers, suppliers, wholesale, factory

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Product Features

1.3C Certification: Meets China's mandatory fire safety standards, guaranteeing product quality, performance, and compliance with national fire protection regulations.​

2. Fusible Alloy Activation: Melts accurately at 72℃ (±2℃) for timely fire response, avoiding false triggers and ensuring reliable activation when needed.​

3. Upright Design: Optimized for ceiling installation, enabling effective upward water dispersion to cover upper areas and suppress fires from the source.​

4. K80 Flow Characteristic: Delivers a balanced water flow rate, ensuring efficient fire control while minimizing unnecessary water damage.​

5. DN15 Connection: Compatible with standard DN15 fire pipes, simplifying installation, maintenance, and replacement processes for contractors.​

6. Durable Construction: Made of corrosion-resistant materials (brass/stainless steel), ensuring long service life and stable performance in various indoor environments.
 

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Product Parameter

Model	K80-72℃ (Fusible Alloy Upright Sprinkler Head)
Product Type	Upright Fire Sprinkler Head (Fusible Alloy, Standard-Response)
Temperature Rating	72℃ (161.6℉), Fusible Alloy Trigger Temperature
K-Factor	K80 (28.8 gpm/psi¹⁾²)
Inlet Size	DN15 (1/2 inch)
Connection Type	1/2 inch NPT/BSP Threaded (Male, Standard)
Deflection Angle	2 Degrees
Operating Pressure Range	0.1MPa - 1.2MPa (14.5psi - 174psi)
Flow Rate	Varies by pressure (e.g., ~24.4 GPM at 30psi, ~34.5 GPM at 60psi)
Spray Pattern	Full Cone Coverage, Uniform Water Distribution (Coverage Diameter: 3.6m - 4.2m at standard pressure)
Material	Brass Body (Lead-Free, CW617N) + Fusible Alloy Element + Galvanized Components
Application	Commercial Buildings, Industrial Workshops, Residential Complexes, Warehouses (Non-Combustible/Combustible Materials Storage)
Certification	3C (China Compulsory Certification), ISO9001, CE
Product Dimensions	120mm × 50mm × 50mm (Height × Inlet Diameter × Sprinkler Diameter)
Net Weight	0.28 kg
Installation Requirement	Upright Mounting, Min. 150mm Clearance from Ceiling/Obstacles

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FAQ

Q: Can you accept sample order?

A: Yes, we accept samples with little and reasonable charge.But need customer pay sample fees and transport fees first.

Q: What is your payment terms?
A: Payment supports T/T, L/C, etc.

Q: How can l get my order?
A: We will send you the goods by UPS,DHL,FedEx,Oversea Shipment or other forwarder, all with tracking number.

Q: Why choose us?
A： With over 15 years of experience in the fire protection industry, our company has professional technical personnel and many well-known partners in the domestic market. We offer favorable prices and guarantee quality, having passed multiple certifications!

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With more than 15 years of experience serving clients, we have developed extensive expertise and in-depth industry knowledge, enabling us to deliver reliable and effective solutions tailored to your requirements.
We provide professional technical support and customized service offerings. Our committed technical team is available to assist you with product consultation, installation guidance, and comprehensive after-sales support whenever necessary.
At Sheng Feng Fire, our professionals are dedicated to helping you select the most suitable products based on your specific needs.
Please do not hesitate to contact us for further information！

Fusible Alloy Upright Fire Sprinkler (K80-72℃)​

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Product Formation

Product Features

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Fusible Alloy Upright Fire Sprinkler (K80-72℃)