Liquid Turbine Flow Meter Specs
|Brand Name||Diameter||Accuracy||Installation||Output||Temp. range||Delivery Time||Warranty||After-sales Service||Package||MOQ|
|Flange connection DN15-DN200;|
Screw connection: DN4-DN50;
Loose flange connection: DN4-DN200
4-20mA analog output,
RS485 (Modbus-RTU protocol),
|-20～+150℃(OEM)||1-3 Work days||1 Years||Video technical support||Carton packing; |
export wooden packing
|Standard flow range|
|Extended flow range|
|Conventional endurance pressure||1.6MPa||1.6MPa||1.6MPa||1.6MPa||1.6MPa||1.6MPa||1.6MPa||…||1.6MPa||1.6MPa|
There are two different manufacturers k:
one is k = f / Q, which is the number of vortices generated per unit flow;
the other is k = Q / f, which is the flow corresponding to each vortex.
The k value is calibrated by the factory water.
The number of vortices of the sensor measuring instrument is compared with the volume flow measured by the calibration device to obtain the k value.
The value of k is actually related to the mechanical structure inside the measuring tube of the flow meter.
Take k = f / Q as an example, the formula is as follows:
D —- Measuring tube diameter
St —- Strauhal number, constant in a certain range of Reynolds number
d —- characteristic width of vortex generator
m–the ratio of the arcuate area on both sides of the vortex generator to the cross-sectional area inside the pipe
The values of d and m are difficult to measure accurately, so it is difficult to obtain accurate k values by calculation.
Turbine Meter Advantages
Turbine Meter Disadvantages
Wide flow rangeability including low flow rates
Requires constant backpressure to prevent cavitation
Turndown ratio is up to 35:1
Accuracy adversely affected by bubbles in liquids
Good level of accuracy at an economic price
Turbine meters can be used with clean liquids and gases
Simple, durable construction
Not applicable for measuring corrosive fluids
Easy to install and maintain
turbulent flow profile (consistent fluid velocity across the pipe diameter)
Flexible connection to flow instruments for flow control
Sensitive to changes in fluid viscosity
Wide variety of process connections
straight run of pipe before and after the turbine meter to allow swirl
patterns in the flow stream to dissipate
Turbine meters can operate over a wide range of
temperatures and pressures
Low pressure drop across the turbine
function properly with high viscosity fluids where the flow profile is
Provides a convenient signal output
Turbine type flow meter is one type of mechanical flow meters. Turbine flow meter use the mechanical energy of the liquid to rotate a rotor in the flow stream. Turbine flow meters measure the velocity of a variety of liquids (oil, water), gases (natural gas) and vapors. All types turbine flow meters, like: flange, sanitary flow meter, insertion, threaded connections etc .
Sanitary Flow Meter, also called the tri-clamp flow meter. Sanitary Flow Meters have stainless steel bodies and come standard with Tri-Clover fittings. Sanitary flow meter meets the requirements of the food, and beverage company industries. Sino-Inst’s magnetic flowmeter and turbine flow meters is available in a sanitary version. And allows for use with Output Modules, Sensors and Remote Transmitters.
Wastewater Flow meters are flowmeters for water and wastewater treatment. Electromagnetic flow meters are suitable for open channel and underground industrial water pipes. Magnetic flow meters can be Remote type, compact type, insertion type. And ultrasonic flow meters are another choice, if you can not change your pipes. Both ultrasonic flow meters and magmeters are inline flow meters. Sino-Inst offers ultrasonic and magnetic flow meters, which offer the highest flow meter accuracy and reliability, as well as long-term stability and a low cost-of-ownership.
Water Flow Meters are flow meters measure and show the flow rate of water flow. Water flow measurement is important for inductrial applications, like the wastewater treatment. In principle, water flow meter types are: Electromagnetic (magnetic), Turbine, Ultrasonic, and DP. Coriolis and Oval Gear flow meters can also work for water flow measurement. These water flow meters, optional with digital display, battery, analog or pulse output. Material can be 316 stainless steel or special material.