ZNC-FRC-E Explosion Proof Thermal Flow Switch

Overview of ZNC-FRC-E Explosion Proof Thermal Flow Switch

The ZNC-FRC-E is an advanced flameproof electronic switch designed for the real-time monitoring of flow rates in explosive and high-pressure industrial environments.

• What is it? The ZNC-FRC-E is a "no moving parts" flow switch housed in a heavy-duty explosion-proof enclosure. It is typically inserted into water, oil, or gas pipelines to serve as a safety interlock. By monitoring the cooling or process flow, it can trigger an alarm or shutdown if flow rates drop below a critical set point, preventing catastrophic equipment failure or "dry burning" in hazardous zones.

• Principles of Operation The device operates on the calorimetric (thermal) principle. The sealed stainless steel probe contains two temperature sensors: one is heated to a constant power, and the other measures the ambient medium temperature. When the medium flows, it carries away heat from the heated sensor. The temperature difference between the two sensors is inversely proportional to the flow velocity. The ZNC-FRC-E processes this difference to provide a highly accurate switching signal.

• Main Application Field The ZNC-FRC-E is primarily used in the Oil and Gas industry, Petrochemical plants, and Power Generation. Specific applications include monitoring the flow of cooling water for explosion-proof motors, supervising chemical dosing lines, and providing dry-run protection for large industrial pumps in volatile environments.

• Key Characteristics The hallmark of the ZNC-FRC-E is its combination of explosion-proof certification (Ex db IIC T6 Gb) and extreme pressure resistance (up to 30MPa). Because it has no mechanical paddles or gears, it is maintenance-free and highly resistant to clogging or wear from particulate-laden fluids.

Features of ZNC-FRC-E Explosion Proof Thermal Flow Switch

1. Certified Flameproof Protection: Fully certified Ex db IIC T6 Gb, making it suitable for Zone 1 and Zone 2 hazardous areas where explosive gases are present.

2. Maintenance-Free Design: No moving parts means no mechanical wear, no sticking, and no fatigue, ensuring a long-term reliable service life in critical processes.

3. High Pressure Capability: Specially reinforced construction allows for stable operation in high-pressure pipelines up to 30MPa.

4. Corrosion-Resistant Wetted Parts: The entire probe assembly is made of stainless steel, providing high compatibility with water, oils, and many corrosive chemicals.

5. Intelligent Signal Output: Provides flexible output options, including Relay (SPDT), PNP, or NPN, allowing for seamless integration with explosion-proof control systems and PLCs.

6. Easy Field Adjustment: Includes an internal potentiometer or key-setting feature that allows users to precisely calibrate the switching point for different media and flow ranges.

Applications of ZNC-FRC-E Explosion Proof Thermal Flow Switch

• Petroleum Refineries: Monitoring the flow of volatile hydrocarbons and cooling water in distillation and cracking units.

• Offshore Oil Platforms: Flow loss protection for fire-fighting water systems and seawater cooling loops.

• Chemical Processing: Ensuring the continuous flow of reactive agents to prevent dangerous temperature spikes in reactors.

• Pump Protection in Hazardous Zones: Acting as a mandatory safety cutoff to prevent high-pressure pumps from running dry and creating ignition risks.

• Gas Pipeline Monitoring: Detecting flow status in natural gas or hydrogen transport lines.

Price of ZNC-FRC-E Explosion Proof Thermal Flow Switch

The price of the ZNC-FRC-E Explosion Proof Thermal Flow Switch varies based on the specific probe length, thread specification, and housing material (Cast Aluminum vs. Stainless Steel). Prices are subject to change based on actual technical parameters and certification requirements. If you would like to receive the latest price for the ZNC-FRC-E, please contact ZINACA Instruments for a formal quotation.

ZNC-FRC-E OEM Service

ZINACA Instruments is a professional industrial instrument manufacturer. We provide comprehensive OEM services for the ZNC-FRC-E, including custom probe lengths for large diameter pipes and specialized thread connections. We can also customize the electronic configuration to meet your specific industrial logic requirements. If you are seeking a reliable OEM partner for explosion-proof instrumentation, please contact ZINACA Instruments.

ZNC-FRC-E Manufacturer

ZINACA Instruments is a trusted manufacturer of explosion-proof flow switches. Our ZNC-FRC-E model is manufactured under strict quality control standards and holds multiple certifications, including ISO 9001 and SIL. We specialize in providing durable, high-performance instruments for the chemical, metallurgical, and oil and gas industries worldwide.

Technical Parameters