M-Type K27/90° Brass Closed Water Mist Sprinkler DN15-93℃

The M-Type K27/90° Brass Closed Water Mist Sprinkler (DN15-93℃) is a high-performance fire protection component crafted from brass, designed to release fine water mist at a 90° angle for efficient fire suppression. It features a DN15 connection size and a 93℃ thermal activation temperature, suitable for various commercial and industrial fire safety scenarios.

•Product Name：M-Type K27/90° Brass Closed Water Mist Sprinkler DN15-93℃
•Material :Brass
•Size :1/2" (DN15) BSPT (compatible with 1/2"–1" BSPT pipelines for installation flexibility)
•Nominal Pressure :5–50 bar（72.5–725 psi）
•Operating Temp :-20°C to +60°C (ambient); Activation Temp: 93°C (thermal trigger temperature)
•K-Factor :K27
•Spray Angle :90°
•Design Type :Closed Type (water mist release upon thermal activation)
•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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linhaifeng117@gmail.com

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Product Details

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Product Formation

This sprinkler head adopts a closed design, ensuring no water leakage under normal conditions and activating only when the ambient temperature reaches 93℃—triggered by a heat-sensitive element that ruptures to release water mist. Constructed from high-quality brass, it boasts excellent corrosion resistance, durability, and compatibility with most fire water supply systems, making it suitable for use in environments with moderate humidity or potential chemical exposure. With a K-factor of 27 (representing the water flow rate under specific pressure), it delivers a precise, fine water mist spray at a 90° angle, which maximizes heat absorption and oxygen displacement, effectively controlling or extinguishing fires while minimizing water damage to surrounding assets. The DN15 (1/2-inch) thread connection allows for easy installation and integration into standard fire sprinkler pipelines, meeting international fire safety standards for reliability and performance.

KEY WORDS： M-type water mist sprinkler, K27 brass sprinkler head, 90° angle closed sprinkler, DN15 fire sprinkler, 93℃ thermal activation sprinkler, brass closed water mist sprinkler，commercial fire protection sprinkler, China, manufacturers, suppliers, wholesale, factory

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Product Features

1.High-Quality Brass Construction: Offers superior corrosion resistance and long service life, suitable for both indoor and semi-outdoor environments.​

2. 90° Spray Angle: Provides targeted water mist distribution, ideal for protecting specific areas such as equipment racks, small rooms, or narrow corridors.​

3. 93℃ Thermal Activation: Ensures timely activation in moderate-risk fire scenarios, avoiding false triggers while responding quickly to rising temperatures.​

4. Closed Design: Prevents water loss and contamination of the sprinkler system under normal operating conditions, maintaining system integrity.​

5. K27 Flow Characteristic: Delivers an optimal water flow rate for efficient fire suppression, balancing performance and water conservation.​

6. DN15 Standard Connection: Enables easy compatibility with standard fire sprinkler pipelines, simplifying installation and maintenance.
 

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Product Parameter

Model	M-K27/90°-DN15-93℃
Product Type	M-Type Brass Closed Water Mist Sprinkler Head (90° Deflector)
K-Factor	K27 (8.0 gpm/psi¹ᐟ²)
Deflector Angle	90° (Targeted water mist distribution)
Inlet Size	DN15 (1/2 inch)
Temperature Rating	93℃ (200℉), Heat-Sensitive Glass Bulb (Red Color Code)
Nominal Pressure (PN)	PN16 (1.6MPa / 232 psi)
Material	CW617N Lead-Free Brass Body + 304 Stainless Steel Components + Borosilicate Glass Bulb
Spray Pattern	Fine Water Mist (Dv0.9 < 100μm), Uniform Coverage
Working Temperature	-5℃ to 70℃ (23℉ to 158℉)
Response Time Index (RTI)	≤100 (Standard-Response)
Maximum Working Pressure	2.0MPa (290 psi)
Overall Height	110mm (4.33 inches)
Thread Type	BSP/NPT (Customizable, standard: BSP)
Application Scenarios	Commercial Buildings, Data Centers, Industrial Workshops, Power Distribution Rooms
Compatibility	Suitable for closed fire protection water mist systems
Certification	CE, UL, FM, ISO9001, 3C (China Compulsory Certification)
Package Included	1 × M-Type Sprinkler Head, 1 × Thread Seal Tape, 1 × English Product Manual

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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！