

Add to Cart
Description
A plastic rotor flowmeter is an instrument that measures flow using the buoyancy balance of a rotor in a fluid flow. Its structure is similar to that of a metal rotor flowmeter, but it is made primarily of plastic materials to facilitate handling of fluids in specific applications. Here are the details about the plastic rotor flowmeter:
Structure and working principle
1. Structure:
- **Plastic pipe**: The main component of the flowmeter is a
transparent plastic tube, so that the status of the rotor can be
clearly observed.
- **Rotor**: A plastic rotor located inside a plastic tube, usually
conical or cylindrical. The material and shape of the rotor enable
it to float in the fluid.
- **Scale**: There is usually a scale inside the pipe to help read
the height of the rotor and determine the flow rate.
- **Seal**: Used to prevent fluid leakage and ensure the accuracy
of the measurement.
2. Working principle:
- **Fluid flow**: When the fluid passes through the plastic pipe,
the flow of the fluid pushes the rotor. The rising position of the
rotor in the pipe is proportional to the flow rate of the fluid.
- **Buoyancy balance**: The buoyancy of the rotor is related to the
flow rate of the fluid. As the flow increases, the rotor moves up;
as the flow decreases, the rotor moves down.
- **Reading**: The flow value can be read directly by observing the
position of the rotor on the scale. Modern flow meters may also be
equipped with sensors and electronic displays to provide more
accurate readings.
Advantages
- Low cost: Plastic rotor flowmeters are cheaper to manufacture than metal rotor flowmeters, so they can be used in situations where the economic budget is tight.
- Corrosion resistance: Plastic materials have good resistance to
many chemicals and corrosive fluids, which makes them suitable for
some special applications.
- Lightweight: Plastic rotor flowmeters are generally light and
easy to install and maintain.
- Transparent pipe: Transparent plastic pipe allows direct
observation of the status of the rotor, which helps to monitor and
inspect visually.
Limitations
- Limited temperature resistance: Plastics are generally not as
resistant to high temperatures as metals, so they are suitable for
applications with lower temperature requirements.
- Limited pressure resistance: Plastic rotor flowmeters are
generally not suitable for high pressure environments because
plastic pipes have limited pressure resistance.
- Mechanical strength: Plastic materials have low mechanical
strength and may be affected by high flow rates or high fluid
impact.
Application fields
Plastic rotor flowmeters are suitable for the following fields:
- Laboratory: used to measure the flow of liquid or gas in the
laboratory.
- Chemical industry: suitable for flow monitoring of certain
chemicals, especially less corrosive chemicals.
- Water treatment: used for flow measurement and control in water
treatment processes.
- Food and beverage: suitable for processing fluids in food and
beverages, especially under low temperature and low pressure
conditions.
In short, plastic rotor flowmeters provide an effective flow measurement solution in many fields with their economy, corrosion resistance and applicability.
BTMF series micro metal tube float flowmeter is a variable area flow meter based on float position measurement. The new design makes it possible to measure tiny flows. Especially suitable for measuring small flow rates of liquids and gases. It adopts an all-metal structure, has small size, low pressure loss, and large range ratio (10:1). It is widely used in various industries for flow measurement and processes in complex and harsh environments, such as small flow rates, low flow rates, and various harsh medium conditions. Control, especially suitable for measuring turbid, opaque or corrosive fluids.
The Turbine Flow Meter is a type of Impeller Flowmeter used for the precise measurement of low-viscosity fluids such as tap and demineralised water, light fuel oil, liquefied gases, ethanol gasoline, Pharmaceutical fluids, non-corrosive chemicale solvents etc.
Turbine Flow Meter measure volumetric flow and flow quantities, where flow passing through the tube is measured by the average velocity of the streaming fluid. The sensor of Turbine reacts to the average velocity of fluid with multi-blades rotor so as to speculating the instantaneous and the accumulative flow.
Specification
Measuring range | Water (20℃) 1~3000 l/h |
Gas(0.1013MPa 20℃) 0.5~90000 l/h | |
Range ratio | 10:01 |
Accuracy level | Level 2.5/Level 4.0 |
Work pressure | PN16MPa |
Medium temperature | Standard type-40℃~+120℃ |
Ambient temperature | -40℃~+80℃ |
Medium viscosity | 1/4” NPT, 3/8” NPT 1/2” NPT≤5mPa.s |
3/4” NPT,1” NPT ≤250mPa.s | |
Output standard signal | two-tier system4~20mA(24VDC ) |
Power | 24VDC±20% |
Connection method | Side entry and exit type:1/4” NPT |
bottom in top out type:1/4” NPT, 3/8” NPT, 1/2” NPT,3/4” NPT,1” NPTinternal thread | |
Electrical Interface | M8×1Or user provides specifications |
Protection level | IP65 |
Explosion-proof | Intrinsically safe:ExiaIICT3~6 |
FAQ
1. Q: What information need to be provided to choose the suitable
model?
A: Application field, Nominal pressure ,Medium & medium
temperture , Power supply , Output,
Flow range, Accuracy, Connection and other parameters.
2. Q: Are you a trade company or a manufacturer?
A: We are an ISO approved manufacturer specialized in level and
flow measuring instruments.
OEM & ODM service are available. Welcome to visit us in China.
3. Q: What is your MOQ?
A: To start our cooperation, sample order is acceptable.
4. Q: What is your delivery date for the Intelligent Mini Micro
Turbine Fuel Oil Diesel Flow Meter?
A: The delivery date is about 3-15 working days after receipt of
payment.
5. Q: What is your payment terms?
A: We support T/T, PayPal ,Western Union.
For mass production order, it is 30% deposit in advance and 70%
balance before shipment.
6. Q: Do you have a warranty for the Flow Meter?
A: Yes, we have the warranty of 12 months.