Products Description
FM Approved Thread Type Fire Water Flow Switch
FM Approved Thread Type Water Flow Sensor is a critical component in modern fire protection systems, designed to detect water movement in sprinkler piping networks and trigger alarms or control panel signals during emergencies. Certified by FM Global, a leading authority in industrial risk management, this sensor combines robust construction with advanced technology to ensure reliable performance in high-stakes environments. Its threaded connection design simplifies installation, while its compliance with stringent safety standards makes it a trusted choice for commercial, industrial, and residential applications.
FM Approval & Certification
The sensor meets FM Global's rigorous testing protocols, including thermal stability, pressure resistance (up to 175 PSI), and corrosion resistance. It also adheres to UL/ULC and CE standards, ensuring global compatibility with fire safety codes such as NFPA 13 and NFPA 72.
Threaded Connection Design
Equipped with 1"–2" NPT (National Pipe Thread) fittings, the sensor integrates seamlessly into steel, copper, or CPVC piping systems. This design eliminates the need for specialized adapters, reducing installation time and minimizing leakage risks.
Vane-Type Flow Detection Mechanism
A precision-engineered vane (or paddle) extends into the water stream. When flow exceeds 10 GPM (38 L/min), the vane pivots, activating a microswitch to send an electrical signal. This mechanism ensures rapid detection while avoiding false alarms caused by minor pressure fluctuations.
Technical Specification
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Contact Rating:
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10A @125/ 250VAC~ 3A @ 24VDC
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Flow Rate:
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15 to 37.8L/min ( 4 to 10 gpm )
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Static Pressure Rating:
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31bar ( 450 psi )
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Dimensions, Installed:
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See FIGURE 1 and table1
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Operating Temperature Range:
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32 to 155℉ ( 0℃ to 68℃ )
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Shipping Weight:
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1KG
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TABLE1:
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Nominal Size
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Threaded
( in )
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Tee Depth(in)
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DN25 ( 1" )
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1×1×1
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2 1/8 |
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DN32 ( 1 1/4 " )
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1 1/4 ×1 1/4 ×1
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2 1/2
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DN40 ( 1 1/2 " )
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1 1/2 ×1 1/2 ×1
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2 3/4
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DN50 ( 2" )
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2×2×1
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3 1/4
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FIGURE1: MOUNTING DIMENSIONS:
FAQ
01.Is the sample provided for free?
A few small products like sprinklers decorative covers can be provided for free, but buyers pay for freight. Other products need to be confirmed.
02.What is the production time of the sample?
Generally speaking, it isn't a large-scale purchase, and the lead time about 15 working days.Of course, having an urgent order, please reconfirm with us.
03.Do you have any MOQ limit?
04.What about the lead time?
Sample needs 7-15 days, mass production time needs 30-40 weeks for order quantity more than 1 container.
05.Can you accept OEM?
Yes, we do customized design for our clients.
Order Information
Dear Customer,
Before ordering, please contact with our sales team to discuss order information, such as Model Number, Flow Rate, Material, Control Ways, Package,Etc.
If you have any other requirements or wanna know more info about our products, welcome to contact as well. Our Sales team and Technical Department are willing to support you.
* Contacts: Email: sales4@forede.com I Tel/WhatsApp: 008618750638978 I Wechat: 18750638978
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