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CA-Fire FSS-Series Supervisory Flow Sensor Switch

(Real-Time Monitoring & Signal-Linked Core Component for Critical Fire Pipeline Systems)

 

1. Product Name & Positioning

 

Full Name: CA-Fire FSS-Series Supervisory Flow Sensor Switch (Stainless Steel/Brass, DN15~DN50 Caliber, 1.6MPa Working Pressure, IP65 Protection, 4-20mA/Dry Contact Output, Fire Alarm System Compatible)

Abbreviation: CA-Fire FSS Supervisory Flow Sensor Switch

Core Positioning: A high-precision, signal-linked flow monitoring component for critical fire systems-fundamentally different from previous ordinary flow switches (e.g., DN25 threaded basic model) and saddle-type flow indicators. It integrates real-time flow measurement,abnormal alarm and remote data transmission, designed exclusively for critical fire pipeline sections (e.g., main supply lines,key area branches,foam system pipelines) needing 24/7 supervised monitoring. With high accuracy,IP65 protection and multi-signal output, it solves the "passive alarm only" limitation of ordinary flow switches-ideal for large industrial parks,high-rise buildings,data centers,chemical plants and critical infrastructure requiring fire system supervisory control.

 

2. Core Product Advantages (Key Differences from Ordinary Flow Switches/Indicators)

 

1. Supervisory-Level Monitoring: Real-Time Data + Signal Linkage vs. Passive Alarm

The most critical distinction from ordinary flow switches:

Dual output modes: Supports 4-20mA analog signal (real-time flow value transmission) and dry contact signal (abnormal alarm trigger), enabling the fire control center to monitor flow dynamics and receive alarms simultaneously. Ordinary flow switches only provide dry contact alarm signals (no real-time data).

Fire system integration: Seamlessly connects to central fire alarm systems (e.g., Siemens,Notifier,Honeywell) and BMS building management systems-realizing remote flow visualization,historical data storage and fault tracing, which ordinary flow switches cannot achieve.

2. High-Precision Measurement: Accurate Flow Monitoring for Critical Sections

Calibrated for precision beyond basic flow switches:

Measurement accuracy ±2% FS (full scale) vs. ±5% FS of ordinary flow switches, with flow range 0.5~100L/min (adjustable by caliber)-suitable for both low-flow leakage monitoring and high-flow fire suppression flow verification.

Built-in flow velocity sensor with anti-turbulence design, ensuring stable readings even in complex pipeline layouts (e.g., elbows,valves upstream)-ordinary flow switches are prone to measurement deviation in non-ideal pipeline conditions.

3. IP65 Protection Level: Harsh Environment Adaptability

Superior to ordinary flow switches (IP44~IP54) and saddle-type indicators:

IP65 dustproof,waterproof protection, withstanding spray,humidity,dust and mild corrosion-suitable for outdoor pipelines,basement pump stations and industrial harsh environments. Ordinary flow switches are limited to indoor dry areas.

Stainless steel (304/316) or brass body options, with anti-corrosion coating on internal components-service life 8-10 years (2 years longer than ordinary flow switches) in harsh conditions.

4. Multi-Caliber & Installation Flexibility: Cover Critical Pipeline Scenarios

Wider applicability than DN25-limited ordinary threaded flow switches:

Caliber range DN15~DN50, supporting threaded (DN15~DN25),flange (DN32~DN50) installation-adapting to critical main lines (DN50),key area branches (DN25~DN32) and precision monitoring sections (DN15).

Horizontal/vertical installation (flow direction marked) with minimal upstream/downstream pipeline requirements (≥5×DN straight pipe)-more flexible than saddle-type indicators (requiring longer straight pipe sections).

5. Fault Self-Diagnosis: Redundant Protection for Critical Systems

Unique function for supervisory-level reliability:

Built-in self-diagnosis module, automatically detecting sensor faults,power abnormalities and signal transmission failures-sending fault alerts to the control center to avoid "blind monitoring" risks. Ordinary flow switches lack self-diagnosis functions, making fault detection difficult.

 

3. Detailed Technical Parameters

Parameter Category	CA-Fire FSS-Series Supervisory Flow Sensor Switch
Core Function	Real-time flow monitoring + abnormal alarm + data transmission
Measurement Accuracy	±2% FS
Output Signal	4-20mA analog + dry contact (NO/NC)
Protection Level	IP65
Caliber Range	DN15~DN50 (threaded/flange)
Installation Flexibility	Horizontal/vertical, ≥5×DN straight pipe
Fault Self-Diagnosis	Yes
Compatible Systems	Central fire alarm system,BMS system

 

4. Applicable Scenarios

 

Critical Fire Main Lines: Industrial park,high-rise building fire main supply lines-real-time monitoring of water/foam flow, ensuring sufficient supply during fires and detecting leakage in advance.

Key Area Branches: Data centers,museums,chemical plant core workshops-precision flow monitoring for critical areas, linking alarms to the control center for rapid response.

Foam Fire Systems: Foam supply lines in oil refineries,tank farms-monitoring foam mixture flow to ensure effective suppression of Class B fires.

Remote Supervised Systems: Unattended pump stations,outdoor fire pipelines-IP65 protection + remote data transmission, enabling centralized monitoring without on-site personnel.

 

5. Frequently Asked Questions (FAQ)

 

How is it different from ordinary flow switches?Ordinary flow switches only trigger alarms when flow exceeds a threshold (passive response); this supervisory-type switch provides real-time flow data + alarm + fault self-diagnosis (active monitoring), integrating into the central control system for supervised management-critical for scenarios requiring high reliability (e.g., data centers,chemical plants).

What signal types are compatible with fire alarm systems?It supports 4-20mA analog signals (for flow visualization) and dry contact signals (NO/NC, configurable) for alarm triggering-compatible with all mainstream central fire alarm systems and BMS building management systems, no custom adapters needed.

How to choose the right caliber and installation method?

Caliber: Match the pipeline diameter (DN15~DN50) of the critical section (e.g., DN50 for main lines,DN25 for key branches).

Installation: Threaded for DN15~DN25, flange for DN32~DN50; install in horizontal pipelines (preferred) or vertical pipelines (flow upward) with ≥5×DN straight pipe upstream/downstream.

What maintenance is required for long-term supervisory use?

Every 6 months: Clean the sensor probe (remove scale/impurities) and verify signal transmission with the control center.

Every year: Calibrate the flow accuracy (using standard flow meter) and check the IP65 sealing performance.

Replace the sensor module if self-diagnosis alerts show persistent faults.

 

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