K5.6 Quick Response Concealed Fire Sprinkler

The K5.6 Quick Response Concealed Fire Sprinkler is a critical component of automatic sprinkler systems, integrating rapid fire response with concealed aesthetics—specifically engineered for spaces where decorative finish integrity is paramount. It ensures early fire suppression capabilities while achieving seamless integration with ceiling structures, making it a preferred choice for high-end residential buildings, commercial spaces, and occupant-dense occupancies.

•Product Name：Concealed Fire Sprinkler
•Material :luminum alloy/ titanium alloy/ stainless steel
•Size :In conventional environments, the body length of the K5.6 Quick Response Concealed Fire Sprinkler ranges from 0.4–0.8 inches (10.16–20.32 mm), with the decorative cover diameter measuring 1.2–1.8 inches (30.48–45.72 mm). For high-temperature or high-value scenarios, the body is slightly longer (0.8–1.2 inches / 20.32–30.48 mm), and the decorative cover is slightly larger (1.5–2.0 inches / 38.1–50.8 mm).
•Nominal Pressure :5–18 bar（72.5–261 psi）
•Operating Temp:-20°Cto +60°C
• K-Flow：K5.6
•OEM Service：Accepted
•Delivery Terms：FOB, CFR, CIF, EXW
•Payment Mode：T/T, L/C, PayPal, Western Union

Product category:

UL/FM Fire Sprinkler

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Email:

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Product Details

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Description

Quick response concealed pendent fire sprinkler incorporates a cover plate to conceal operational parts for aesthetic consideration. The hidden design of the quick response concealed spray system provides a good balance between aesthetics and functionality When exposed to specific temperature of fire, cover plate falls away and deflector is released to work similar as recessed sprinkler.

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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

K5.6 Available Specification

Type	Temperature rating	Cover plate	Working pressure (psi)	certificate
Concealed pendent	135°F (57°C)	135°F(57°C)	175/300	UL
Concealed pendent	155°F (68°C)	135°F (57°C)	175/300	UL
Concealed pendent	175°F(79°C)	165°F (74°C)	175/300	UL
Concealed pendent	200°F(93°C)	165°F (74°C)	175/300	UL

Note

• The concealed sprinkler head is used in light hazard and ordinary hazard occupancies.
• The cover assembly provides adjustment up to 1/2″.
• For high pressure type (working pressure 300 psi), it is only UL listed, not FM approved.

Type	Temperature rating	Cover plate	Working pressure (psi)	certificate
Concealed pendent	135°F (57°C)	135°F(57°C)	175	UL
Concealed pendent	155°F (68°C)	135°F (57°C)	175	UL
Concealed pendent	175°F(79°C)	165°F (74°C)	175	UL
Concealed pendent	200°F(93°C)	165°F (74°C)	175	UL

Feature

The K5.6 Quick Response Concealed Fire Sprinkler is an ultra-high-performance concealed fire protection device tailored for high-risk, high-value facilities, with core features centered on rapid fire response, ultra-fine atomization, and seamless aesthetic integration. Below are its key characteristics:

1.Ultra-Fast Response Performance: Industry-leading RTI (Response Time Index) value enables fire detection in milliseconds.

2.Ultra-Fine Atomization: Precise coverage minimizes water damage.

3.Concealed Design: Zero-gap integration with the ceiling for ultimate aesthetic harmony.

4.Materials & Durability: Lightweight construction combined with high corrosion resistance adapts to harsh environments.

5.Installation & Maintenance: Precision fitting ensures efficient operation and upkeep.

Product Parameter

Type	Concealed automatic sprinkler system sprinkler
Response type	Quick Response
Flow coefficient (K)	K=5.6
Temperature rating	Common: 68 °C (155 °F, orange glass bulb), 79 °C (175 °F, red glass bulb); Optional for special scenarios: 93 °C (200 °F, yellow)
Operating pressure range	Wet pipe system: 0.10 - 0.35 MPa (14.5 - 50.8 psi); Dry pipe / pre - action system: 0.10 - 0.25 MPa (14.5 - 36.3 psi)
Material :	luminum alloy/ titanium alloy/ stainless steel
Installation method	Pendent installation
Size :	In conventional environments, the body length of the K5.6 Quick Response Concealed Fire Sprinkler ranges from 0.4–0.8 inches (10.16–20.32 mm), with the decorative cover diameter measuring 1.2–1.8 inches (30.48–45.72 mm). For high-temperature or high-value scenarios, the body is slightly longer (0.8–1.2 inches / 20.32–30.48 mm), and the decorative cover is slightly larger (1.5–2.0 inches / 38.1–50.8 mm).
Nominal Pressure :	5–18 bar（72.5–261 psi）
Channel Design :	Full Port Straight Through Type
Working Media :	water
Operating Temp :	-20°Cto +60°C

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FAQ

Q: Can you accept sample order?

A: Yes, we accept samples with little and reasonablecharge.But need customer pay sample fees and transportfees firest.

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,OverseaShipment or other forwarder, all with tracking number.

Q: Why choose us?
A; With over 15 years of experience in the fire protectionindustry, our company has professional technical personne!and many well-known partners in the domestic market. Weoffer favorable prices and guarantee quality, having passedmultiple certifications!

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We serve customers for over 15 years — so we’ve got the knowledge and industry experience to help you get it right.Professional technical support, intimate service experience We have a professional technical support team, at any time to provide you with product consultation, installation guidance and after-sales service.

Let the professionals at Sheng Feng Fire help you select the products that meet your exact needs.

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