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Help CenterEATEC Liquid Flow Switch FS1 Industrial Water Flow Control Switch
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EATEC FS1 Industrial Liquid Flow Switch is a precision-engineered water flow control solution developed by Rossonix Co., Limited, a professional trading company with over 10 years of export experience. Designed for industrial water systems, pump protection, and cooling circuits, this compact flow switch delivers reliable flow detection with an adjustable set point. Whether you need to monitor coolant flow in CNC machines or protect pumps from dry running, the FS1 offers a robust and cost-effective answer.
Built with a durable metallic body and a corrosion-resistant internal mechanism, the FS1 operates on a simple yet accurate vane or paddle principle. When liquid flow exceeds the preset threshold, the magnetic reed switch triggers an electrical signal. This makes it an ideal choice for interlocking with alarms, pumps, or valves in automated industrial processes.
Key Product Highlights
High Reliability: The FS1 uses a hermetically sealed reed switch to ensure long-term mechanical and electrical stability.
Wide Compatibility: Suitable for water, oil, glycol, and other non-aggressive liquids (please check media compatibility with our sales team).
Easy Installation: Compact inline design with G-thread or NPT threading options for quick mounting.
Adjustable Set Point: The flow switch can be customized with different spring strengths to activate at your desired flow rate.
Minimal Pressure Drop: Optimized flow path reduces energy loss and maintains system efficiency.
IP65 Protection: The enclosure is rated IP65, making it suitable for humid and dusty industrial environments.
Low Maintenance: No moving parts exposed to the media, except the internal paddle, resulting in low wear and tear.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | FS1 |
| Flow Media | Liquid (water, oil, coolant) |
| Process Connection | G1/2" to G2" (NPT optional) |
| Max Flow Range | 0.5 to 120 L/min (depends on pipe size and spring setting) |
| Max Operating Pressure | 2.5 MPa (360 PSI) |
| Ambient Temperature | -20°C to +70°C (media up to 120°C with proper seal) |
| Switch Capacity | AC 220V / 1.5A, DC 24V / 2A |
| Output Type | SPST Reed Switch (NO/NC) |
| Electrical Connection | Screw terminals, cable gland PG9 |
| Protection Rating | IP65 |
| Wetted Materials | Brass, Stainless Steel 304, NBR O-ring |
Why Choose the EATEC FS1 Flow Switch?
In today's competitive industrial environment, downtime caused by pump failure or loss of cooling water is unacceptable. The FS1 flow switch acts as a simple and dependable watchdog. By detecting low-flow or no-flow conditions, it can trigger an emergency shutdown or send an alarm to your PLC, preventing costly damage and reducing operational risks.
Compared with electronic flow meters, the mechanical flow switch offers several advantages: no external power required for the sensing element (only for the switch circuit), lower upfront cost, and easy field adjustment. The FS1 is manufactured under strict quality control procedures and is tested before shipment, ensuring that each unit meets your specification.
Installation and Usage Benefits
Horizontal or vertical installation is possible, but the direction must match the arrow on the body.
Adjustable set point allows you to match the switch to your actual flow requirements without ordering special versions.
Lightweight and compact construction allows installation even in tight spaces.
Robust metal housing withstands vibration and thermal shock in industrial environments.
Customizable connection threads and materials are available upon request.
Quality and Service Assurance
Rossonix Co., Limited, established in 2011, has grown into a trusted supplier for industrial sensing and control products. Our annual export value of US$5-10 million and our expanding overseas office network demonstrate our commitment to global customer satisfaction. We hold ISO9001:2015 and ISO9000 certifications, which reflect our dedication to consistent process management and product quality.
Every FS1 flow switch is subjected to rigorous function testing, pressure testing, and visual inspection. We provide a 12-month warranty against manufacturing defects. Our team of engineers and export specialists in Shenzhen is ready to support your technical inquiries and after-sales needs. With fast shipment from Shenzhen, Hong Kong, or our European logistics hub, you can rely on timely delivery and responsive communication.
Frequently Asked Questions (FAQ)
Q: Can the FS1 be used with oil or lubricants?
A: Yes, the FS1 can be used with most mineral oils, water-based coolants, and non-corrosive liquids. Please advise the specific fluid and temperature range, and we will recommend the appropriate seal material.Q: Is the set point adjustable?
A: Yes, the FS1 features an adjustable set point. You can turn the adjustment screw to increase or lower the activation flow according to your requirements, typically within the published range.Q: What is the maximum switching current?
A: The reed switch can handle up to 1.5A at 220VAC or 2A at 24VDC. For higher loads, please use an intermediate relay or contactor.Q: What is the flow direction requirement?
A: The FS1 must be installed with the arrow on the housing pointing in the actual flow direction. The recommended installation is horizontal, but vertical installation with upward flow is also acceptable.Q: Does the FS1 require a minimum straight pipe run?
A: For most applications, a minimum of 5 diameters of straight pipe upstream of the switch is recommended to ensure stable flow and accurate switching.Q: Can you provide custom connection sizes or materials?
A: Yes, we offer customization such as DN15 to DN50, brass or stainless steel bodies, and NPT or G threads. Please contact us with your detailed specification.Q: Is the switch suitable for potable water?
A: The standard version uses FDA-compliant NBR O-rings and is suitable for contact with potable water. However, local regulations may differ; we recommend consulting with our team for final compliance confirmation.
Ready to enhance your system's reliability and protect your equipment from costly damage? Contact us today for a quote or free consultation. The EATEC FS1 flow switch is available for prompt global shipment, and our team will respond within 24 hours on working days.
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