Metal Tube Float Flowmeter

1. Utilizes multi-segment conical tube technology, making the dial more linear.

2. Dual indicating system to meet the needs of users in different working conditions.

3. The panel uses an aluminum dial with a long pointer mechanical indicator, resulting in a more aesthetically pleasing panel. It features a low-power, full-view, dual-line backlit LCD digital display that can simultaneously display instantaneous flow, cumulative flow, and corresponding delays.

4. Equipped with a magnetic damping system to effectively reduce pointer jitter.

5. Added a geomagnetic interference compensation device to effectively overcome the influence of the geomagnetic field on the instrument.

6. Suitable for measuring small flow rates of various media.

7. Simple structure and easy installation.

The product mainly consists of two parts: a measuring tube and an indicator. The measuring tube includes components such as a conical tube or orifice plate, a guide, a stopper, and a float, while the indicator includes components such as a magnetic follower system, a graduated needle, a dial, and a circuit board (for remote transmission).

When the measured medium flows from bottom to top through the measuring tube, a pressure difference is generated at the upper and lower ends of the float, creating an upward force. When the upward force on the float is greater than the weight of the float immersed in the fluid, the float rises, the annular gap area increases accordingly, the flow velocity in the annular gap decreases rapidly, the pressure difference between the upper and lower ends of the float decreases, and the upward force acting on the float decreases accordingly until the upward force is balanced with the weight of the float immersed in the fluid. At this point, the float stabilizes at a certain position, and the height of the float position corresponds to the flow rate of the measured medium.

The float has a built-in magnet, and the magnetic field changes as the float moves up and down with the medium. The follower magnet fixed on the pointer shaft in the indicator is coupled to the magnet inside the float, which drives the pointer and the sensing magnet to rotate. The local instantaneous flow indicated by the pointer on the dial is converted into an electrical signal by the magnetic sensor, and after being processed by the circuit, the instantaneous flow and the cumulative flow are displayed.

Metal tube float flowmeters are a commonly used variable area flow meter in industrial automation control. They are characterized by their small size, wide detection range, and ease of use. They can be used to measure the flow rate of liquids, gases, and steam, and are particularly suitable for measuring the flow rate of low-velocity, low-flow, high-temperature, high-pressure, highly corrosive, conductive, or non-conductive media.

This series of metal tube float flowmeters conforms to the national standard JB/T 6844-2015, and its factory verification conforms to the verification JJG257-2007.

This product has been inspected and approved by a nationally designated explosion-proof quality inspection agency and meets the relevant requirements of GB3836.1-2010, GB3836.2-2010, GB3836.4-2010, and GB3836.20-2010 standards. Its explosion-proof markings are: Flameproof Exd II CT2-T6Gb, Intrinsically safe Exia II CT6 Gb.