Pangkalahatang-ideya ng Produkto

The UL/FM Fire Alarm Check Valve is a specialized fire protection valve designed for wet-pipe automatic sprinkler systems. Constructed from high-strength ductile iron, it offers exceptional corrosion resistance and a long service life in demanding fire protection environments. It is an ideal choice for commercial buildings, mga pasilidad sa industriya, high-rise apartments, mga bodega, and other locations requiring reliable fire alarm capabilities and flow control.

UL/FM Fire Alarm Check Valve

Teknikal na Pagtutukoy

Working Principle

The alarm check valve operates on a simple yet reliable pressure differential principle:

1. Standby State (System Pressurized): The system side of the valve is filled with pressurized water. The clapper remains closed due to its own weight and the pressure balance between the supply side and system side.

2. Fire Event (Sprinkler Activation): When a fire occurs and the sprinkler head opens, water pressure on the system side drops. The pressure differential opens the clapper, allowing water to flow from the supply side into the system piping.

3. Alarm Activation: Simultaneously, water enters the alarm port through a small orifice, flowing to the water motor gong (audible alarm) and pressure switch (electrical signal to the fire control panel). The bypass check valve prevents false alarms from pressure surges.

UL/FM Fire Alarm Check Valve

Mga Pangunahing Tampok

1. High-Strength Ductile Iron Construction
2. Integrated Alarm Activation – Dual Alarm Output
3. UL, FM & CE Certified – Global Compliance
4. Fusion-Bonded Epoxy Coating – Superior Corrosion Resistance
5. Bypass Check Valve – False Alarm Prevention
6. Wide Media Compatibility
7. Flanged Connection – EN 1902-2 PN10/PN16

Mga aplikasyon

1. Automatic Fire Sprinkler Systems
2. Fire Pump Discharge Lines
3. Industrial Fire Protection
4. High-Rise Building Risers
5. Municipal Fire Protection Networks

UL/FM Fire Alarm Check Valve

Pag-iimpake at Pagpapadala

Ang pag-iimpake ay depende sa uri at dami ng produkto. Standard packing includes wooden cases with proper protection for flange faces and trim components. Maaaring ayusin ang pagpapadala sa pamamagitan ng dagat, riles, hangin, o ayon sa kahilingan ng customer.

Mga Tuntunin sa Pagbabayad

T/T, L/C sa paningin, Western Union & PayPal, atbp.

Profile ng Kumpanya

LUOYANG CAME ENERGY TECH CO., LTD ay isang propesyonal na tagapagtustos ng balbula sa industriya, nakatuon sa pagbibigay ng maaasahang mga solusyon sa pagkontrol ng daloy para sa proteksyon ng sunog, HVAC, paggamot ng tubig, at pang-industriya na mga sistema ng tubo sa buong mundo. Lahat ng mga produkto ay ginawa sa mga internasyonal na pamantayan na may UL/FM, CE, at ISO 9001 mga sertipikasyon. Sa paglipas 10 taon ng karanasan, isang modernong pasilidad ng 80,000 m², at 200+ mga propesyonal na empleyado, naglilingkod kami sa mga customer sa 10+ mga bansang may kalidad ng mga produkto, mapagkumpitensyang pagpepresyo, at maaasahang paghahatid.

UL/FM Fire Alarm Check Valve

FAQ

Q1: What is the difference between an alarm check valve and a standard check valve?

A: An alarm check valve is a specialized type of check valve; in addition to preventing backflow (like a standard check valve), it triggers an audible and visual alarm when water flows through the system. Standard check valves only prevent backflow and lack alarm functionality. Alarm check valves are primarily used in fire protection systems that require flow monitoring and alarm notification capabilities.

Q2: Which certification standards does this valve meet?

A: This valve holds UL Listing (UL 312), FM Approval (FM 1630), and CE certification, meeting the strictest international safety and quality standards for fire protection equipment. These certifications ensure the product can be used in compliance with regulations for fire protection projects worldwide.

Q3: What is the function of the bypass check valve?

A: The bypass check valve allows for slow, minor, and transient increases in supply pressure to pass through, thereby preventing false alarms caused by pressure fluctuations. It ensures that the alarm is triggered only when sprinkler heads actually activate and a sustained water flow occurs.

UL/FM Fire Alarm Check Valve