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ProductsThe manufacturer provides supporting services and offers you a one-stop procurement platform for fire accessories and products
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About usAn industrial and trade fire company integrating the development, production, sales, and service of fire accessories.
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Quick Response Upward/Downward Spray Sprinklers (68°C, K115)(K-ZSTZ20-68℃ V3402)( K-ZSTX115-68℃ V3406)
● Material of Main Body：stainless steel/ H59 brass
● Nominal Connection Thread：R3/8" (DN10) / R1/2" (DN15)
● Operating Temperature：68℃±3℃
● Flow Coefficient (K - value)：K115
● Response Time Index (RTI)：m≤50 (m\cdotps)0.5
● Static Operating Pressure：≤1.2MPa
● Operating Temperature Range：-10℃~70℃ (normal environment)
● OEM Service：Accepted
● Delivery Terms：FOB, CFR, CIF, EXW
● Payment Mode：T/T, L/C, PayPal, Western Union
Product category:
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Product Details
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Product Formation
The Quick Response Upward/Downward Spray Sprinklers (68°C, K115) achieved technical finalization through four key stages: standardized design, high-reliability material selection, precision manufacturing processes, and rigorous performance validation—meeting the core requirement of "precise early-stage fire prevention and control" for automatic building sprinkler systems.
Through multi-dimensional optimization of materials, structure, and performance, they have emerged as the core terminal device in fire protection systems for civil and light-industrial buildings, enabling "early detection and early suppression" to deliver layered protection for life and property safety.
KEY WORDS： Quick Response Upward Spray Sprinkler，Quick Response Downward Spray Sprinkler，68°C Quick Response Upward Spray Sprinkler，68°C Quick Response Downward Spray Sprinkler，68°C K115 Quick Response Upward/Downward Spray Sprinklers，68°C Quick Response Upward/Downward Spray Fire Sprinkler，China, manufacturers, suppliers, wholesale, factory.
Other Classifed Products：
Fire Hose Categories, Fire Sprinkler System, Fire Protection Valve , Fire Hose Reel&Cabinet , Fire Foam Equipment，Fire Nozzle and Fire Monitor , Fire Hydrant , UL/FM Fire Fighting Equipment , Brass Valve Categories , Fire Extinguisher Series .
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Product Features
The core features of the Quick Response Upward/Downward Spray Sprinklers (68°C, K115) are as follows:
- Faster Activation with Quick Response Thermal Element:
- Compared to traditional standard-response sprinklers, its quick response thermal element activates significantly faster. This is critical for high-occupancy areas (e.g., offices, restaurants, hospital corridors) or spaces with concentrated combustibles (e.g., warehouse shelves, mall display cabinets)—buying valuable time for occupant evacuation, initial fire suppression, and drastically reducing fire spread risk.
- Precise 68°C Operating Temperature:
- The 68°C±3°C activation threshold matches routine fire risks in civil/light-industrial settings, balancing safety (avoiding false triggers in normal environments like air-conditioned spaces) and sensitivity (reliable startup before fire temperatures reach dangerous levels).
- Durable Materials & Sealing for Low Maintenance:
- Constructed with long-lasting materials (e.g., 304 stainless steel/316L stainless steel/H59 brass) and sealed with high-performance silicone gaskets, it offers a long service life and minimizes maintenance needs—reducing system downtime and costs.
- Wide Compatibility & Flexible Installation:
- Compatible with mainstream automatic sprinkler systems (wet, dry, pre-action) and adaptable to various scenarios: upward sprinklers fit under ceilings (≤150mm spacing), while downward sprinklers suit open spaces (≤8m height).
- Large K115 Flow Coefficient for Reliable Performance:
- The K115 flow coefficient ensures stable water output (≥1.33L/s at 0.14MPa standard pressure), meeting required spray intensity (e.g., 6L/min·㎡ for medium-hazard Level 1 spaces) even with minor pressure fluctuations.
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Product Parameter
| Parameter Item | Value/Standard | Description |
| Material of Main Body | 304 stainless steel (standard) / 316L stainless steel (corrosion - resistant optional) / H59 brass (economical optional) | Surface passivated by electrostatic spraying of epoxy resin, thickness ≥80μm |
| Sealing Material | Imported silicone rubber sealing gasket (Shore hardness 60±5A) | Temperature resistance range - 40℃~200℃, permanent compression set ≤15% |
| Nozzle Material | Brass (surface nickel plating) | Internal flow passage polished, flow coefficient deviation ≤±5% |
| Nominal Connection Thread | R3/8" (DN10) / R1/2" (DN15) | R3/8" (DN10) / R1/2" (DN15) |
| Operating Temperature | 68℃±3℃ | Conforms to GB 5135.1 Automatic sprinkler systems - Part 1: Sprinklers |
| Type of Thermal Sensitive Element | Glass bulb (standard configuration) / Fusible alloy (optional) | Glass bulb color code: orange (68℃); fusible alloy melting temperature 68℃±3℃ |
| Flow Coefficient (K - value) | K115 | Calculated according to GB 5135.1: K=Q/ΔP(Q = flow rate, ΔP= working pressure difference) |
| Response Time Index (RTI) | ≤50 (m\cdotps)0.5 | Conforms to NFPA 13 Installation of Automatic Sprinkler Systems, quick response sprinkler requirements |
| Static Operating Pressure | ≤1.2MPa | Maximum working pressure that the sprinkler can withstand when not activated |
| Operating Temperature Range | -10℃~70℃ (normal environment); -20℃~100℃ (low - temperature/high - temperature optional) | GB/T 2423.1/2 Environmental testing for electric and electronic products |
| Water Impact Resistance | 1.2MPa pressure, 1000 times continuous impact: no deformation, no leakage | GB 5135.1 Annex F |
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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！
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ADDRESS
Lidong Industrial Zone, Meilin Street, Nan'an, Quanzhou City.
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EMAIL ID
sales@sfxf-china.com
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we mainly have: water system accessories, stainless steel fire boxes and foam fire hydrant box accessories, valve accessories, intelligent above-ground hydrants and intelligent end-of-line test devices and automatic fire cannons, as well as accessories and fire equipment and valve product OEM processing.