Chongqing Chuanyi RFC Intelligent Metal Tube Rotameter

The Chongqing Chuanyi RFC Intelligent Metal Tube Rotameter is a high-performance variable area flowmeter engineered for rigorous industrial process automation and control applications. Built in compliance with national standards (JB/T 6844-2015 and JJG 257-2007), this robust meter provides accurate flow measurement across challenging process environments involving conductive or non-conductive liquids, compressed gases, and saturated or superheated steam.

Advanced Design & Working Principle: The meter consists of a sturdy measuring tube and an advanced indicator. As the measured medium flows upward through the tapered measuring tube, a differential pressure is generated across the float, creating an upward buoyant force. When this force balances the submerged weight of the float, it stabilizes at a specific position corresponding to the flow rate. Built-in magnetic steel couples the float’s movement with the indicator’s internal mechanism, translating mechanical position into local pointer readings and precise electrical signals via magnetic sensors.

Key Structural & Technological Features:

• Uniform Magnetic Field Technology: Converts the float into a rotor for enhanced measurement stability.

• Multi-Section Taper Tube: Ensures a highly linear display output on the dial face.

• Double Indication System: Combines a traditional aluminum mechanical pointer with an optional low-power, full-view double-line LCD screen for simultaneous instantaneous and cumulative flow readout.

• Magnetic Damping & Geomagnetic Compensation: Effectively reduces pointer jitter and neutralizes external geomagnetic interference to maintain high accuracy.

• Explosion-Proof Compliance: Certified safe for hazardous locations, offering flameproof (Exd II CT6 Gb) and intrinsically safe (Exia II CT6 Gb) options.

 Applications

• Chemical & Petrochemical Industries: Measurement of corrosive liquids, aggressive gases, and chemical process streams.

• Oil & Gas Processing: Monitoring utility lines, fuel gas, and oil products under high pressure.

• Power Generation Facilities: Boiler feed water, cooling water, and steam flow management.

• Water & Wastewater Treatment: Efficient flow tracking for municipal and industrial water treatment systems.

• Pharmaceutical & Food Processing: Sanitary-grade configurations for clean-in-place (CIP) and specialized fluid handling.

Technical Specifications

Item	Specification Details
Model Series	RFC Intelligent Metal Tube Rotameter
Nominal Diameter (DN)	DN15 to DN200
Measurement Range (Water at 20°C)	1 L/h to 200,000 L/h
Measurement Range (Air)	0.03 m³/h to 3,000 m³/h (at 20°C, 0.1013 MPa)
Accuracy Grade	Standard Class 1.5 (Special Class 1.0 available)
Pressure Grade	Standard type: DN15–DN50 $\le$ 4.0 MPa, DN80–DN200 $\le$ 1.6 MPa; Special type up to 32 MPa
Connection Types	Flange type, sanitary clamp type, threaded type
Medium Temperature	Standard type: -20°C to +120°C; PTFE-lined: 0°C to +80°C; High-temperature type: up to 450°C
Ambient Temperature	-40°C to +100°C (local pointer type); -30°C to +80°C (remote transmission type)
Power Supply	24V DC two-wire system (4–20 mA), 220V AC, or 3.6V lithium battery powered
Output Options	4–20 mA analog output, HART protocol, Modbus, Pulse output, Alarm contacts
Protection Class	IP65
Explosion-Proof Mark	Exd II CT6 Gb (Flameproof) / Exia II CT6 Gb (Intrinsically safe)

FAQ

Q1: What media types can the RFC metal tube rotameter measure?A: It is capable of measuring liquids, gases, and steam, including low-flow rates, high-temperature, high-pressure, and corrosive or conductive/non-conductive media.

Q2: Does the rotameter require external power if using the LCD display?A: The meter can be configured with a 3.6V lithium battery for standalone operation, or powered via 24V DC / 220V AC for remote transmission and backlit LCD functions.

Q3: Are straight pipe sections necessary during installation?A: Yes, to ensure optimal measurement accuracy, it is recommended to maintain an upstream straight pipe section of 5 times the nominal diameter (5×DN) and a downstream section of at least 250 mm.

Q4: How can pointer oscillation be minimized when measuring gas?A: For gas applications discharging directly to the atmosphere, installing a control valve at the instrument outlet and keeping it partially throttled helps prevent pressure drops and pointer jitter.

مستندات المنتج

فتح المستندات الفنية.

أدخل بريد العمل ورقم واتساب مرة واحدة للوصول إلى جميع المستندات.

Website بريد العمل * واتساب * فتح جميع المستندات → بإرسال النموذج، توافق على أن تتواصل معك FUGUI بشأن هذا المنتج. تُحفظ بياناتك بشكل خاص للمتابعة.