K5.6 Standard Response Concealed Fire Sprinkler

•Product Name：Fire Sprinkler
•Material :Brass/stainless steel
•Size :1/2" NPT/BSPT
•Nominal Pressure :0.05-1.2MPa（0.5-12bar）
•Operating Temp:68°C（orange glass bulb）and 79°C（red glass bulb）
•OEM Service：Accepted
•Delivery Terms：FOB, CFR, CIF, EXW
•Payment Mode：T/T, L/C, PayPal, Western Union

Product category:

UL/FM Fire Sprinkler

Email:

linhaifeng117@gmail.com

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Product Details

UL Conceal Fire Sprinkler Product Description

UL Concealed Fire Sprinkler Head is not just a decorative cover plate. It is an integrated, engineered life-safety system where the cover and the sprinkler are tested together as a single unit. The UL Listing Mark certifies that this entire assembly will perform reliably—dropping its cover and discharging water effectively—when called upon in a fire, ensuring both aesthetic goals and critical safety requirements are met.

Available Size

Model	Temperature Rating	Working Pressure	Diameter Size
Concealed Pendent	135℉（57℃）	175 / 300	1/2 Inch NPT
	155℉（68℃）	175 / 300	1/2 Inch NPT
	175℉（79℃）	175 / 300	1/2 Inch NPT
	200℉（93℃）	175 / 300	1/2 Inch NPT

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Features

1. Thermal Sensitivity of the Cover Plate Assembly

This is the most crucial test. UL verifies that the cover plate's heat-sensitive mechanism (its fusible solder or glass bulb) will release at its rated temperature before the main sprinkler's element activates. The cover must drop away cleanly to allow the free flow of water.

2. Water Distribution Performance

Once the cover is gone, the sprinkler must perform like any other listed sprinkler. UL tests the spray pattern to ensure it meets the required density and coverage to control a fire. The recessed body cannot interfere with the spray pattern.

3. Durability and Reliability

Like all UL-listed sprinklers, concealed models undergo a battery of tests, including:

Corrosion Resistance: The assembly is tested to ensure both the hidden body and the visible cover plate won't fail prematurely due to corrosion.

Hydrostatic Strength: The sprinkler body must withstand high water pressure without leaking.

Load Resistance: The assembly must withstand physical loads that might occur during installation or maintenance.

4. Paintability

A key feature of concealed sprinklers is that their cover plates can be painted. The UL listing includes guidelines on how this can be done without impairing the sprinkler's operation. Using non-approved paints or methods can void the UL listing.

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 10 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 10 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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