製品概要

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, 産業施設, high-rise apartments, 倉庫, and other locations requiring reliable fire alarm capabilities and flow control.

UL/FM Fire Alarm Check Valve

技術仕様

動作原理

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

主な特長

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

アプリケーション

1. 自動消火スプリンクラーシステム
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

梱包と発送

梱包は商品の種類と数量によって異なります. Standard packing includes wooden cases with proper protection for flange faces and trim components. 船便での発送も可能です, 鉄道, 空気, または顧客の要求に従って.

支払い条件

T/T, 一目でわかるL/C, ウエスタンユニオン & ペイパル, 等.

会社概要

洛陽来来能源科技有限公司, 株式会社 工業用バルブの専門サプライヤーです, 防火のための信頼性の高い流量制御ソリューションの提供に専念, 空調設備, 水処理, 世界中の産業用配管システム. すべての製品はUL/FMの国際規格に従って製造されています, CE, およびISO 9001 認証. 以上で 10 長年の経験, の近代的な施設 80,000 ㎡, そして 200+ 専門職の従業員, 私たちは顧客にサービスを提供します 10+ 高品質の製品を持つ国, 競争力のある価格設定, そして確実な配送.

UL/FM Fire Alarm Check Valve

よくある質問

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

あ: 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.

第2四半期: Which certification standards does this valve meet?

あ: 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?

あ: 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