SR-LVD type differential pressure cone flowmeter
1、 Overview of a new type of differential pressure flowmeter
The SR-LVD cone flowmeter is a new type of high-precision differential pressure flowmeter. By hanging from the centerline of a closed pipeline A special streamlined cone is used for central throttling, and the flow rate is calculated based on the differential pressure measured by the upstream pipe wall and cone tip, hence the name cone flowmeter. Due to its unique structural design, the performance of cone flowmeter is superior to other differential pressure flowmeters.
The SR-LVD conical flowmeter, like the differential pressure flowmeter, is measured based on Bernoulli's law of energy conversion in a closed pipeline, which states that under stable flow conditions, the flow velocity of the medium is proportional to the square root of the differential pressure. When the mediumWhen a certain speed flows towards the tip of the cone, due to the throttling effect of the cone, a low-pressure zone P2 is immediately formed downstream of the cone. There is a pressure difference △ P between the high-pressure PI upstream of the cone and the low-pressure P2 downstream. The pressure difference △ P is sent to the differential pressure transmitter through the pressure tap, and the change in flow rate can be measured based on the change in differential pressure.
2、 IntegrationV-coneinternet trafficcountComposition of measurement system
The SR-LVD cone flowmeter consists of a flow measurement system consisting of a built-in cone throttle and three valve group, heat dissipation components, impulse piping, differential pressure transmitter, and flow computer. For media such as gas and steam, temperature and pressure compensation can be added to form a measurement system for flow rate and standard volume. LVD type cone flow scoringAccurate pipeline type (DN15-DN900 or larger); Clamp type (DN15-DN150)
IIIintegrationV-coneinternet trafficcountProduct Features
High precision and good repeatabilityThe accuracy of the conical flowmeter is+0.5% of the measured value, and the repeatability is+0.2%.
Wide range ratio and low pressure lossUnder normal circumstances, the range ratio of a conical flowmeter is 10:1. Accurate parameters can achieve a ratio of 30:1, and the pressure loss of the conical flowmeter is only 1/5 to 1/10 of that of the orifice plate, which can greatly reduce operating energy consumption.
Requirements for installing straight pipe sectionsDue to the unique center streamline throttling structure of the conical flowmeter, the problem of straight pipe rectification is well solved, directly rectifying irregular fluids into ideal fluids, with the front straight pipe section 0-3D and the rear straight pipe section 0-1D.
Unique design of coneThis ensures that the fluid flow through the cone is a gradual process without sudden changes. The flow rate first passes through the cone and then reaches the edge of the cone, so the cone will not be frequently worn by the fluid.
Good long-term stabilityThe β value can remain unchanged for a long time, so the instrument does not need to be recalibrated for long-term use.
Cone flowmeter and orifice plate throttling deviceSimilarly, the working temperature and pressure depend on the material and grade of the pipes and flanges. Special throttling fluid enables it to measure multiphase water flow, electromagnetic interference media, various mixed gases, etc. Very suitable for measuring dirty media such as Yanqi, coal gas, crude oil, etc.
Widely applicable, capable of measuring media under high temperature, high pressure, and complex working conditionsThe conical flowmeter has a wide range of operating conditions, with temperatures ranging from -100 ℃ to 500 ℃, maximum pressure of 40MPa, and a wide Reynolds number range of 8X10³~ 5X 10⁶.
gasWater, natural gas, air, oxygen, nitrogen, hydrogen, methane, propylene, flue gas, saturated steam, superheated steam, etc.
Liquids: water, oil products, emulsions, pure water, hydrogen peroxide, glycerin, alcohol, purified water, sewage, various corrosive media, etc.
Capable of self-cleaningThe special design of the differential pressure cone flowmeter ensures that the cone does not have dead zones, so there will be no accumulation of fluid debris, sticky residue, and impurities on the cone, and it has self-cleaning function.
4integrationV-coneinternet trafficcountAccurate pipeline type size



Please provide the following parameters when placing an order：
1. Caliber(Unit: mm) 2. Measurement medium name 3. Maximum measurement range 4. Normal working range 5. Maximum small working range 6. Working pressure 7. Working temperature 8. Medium density 9. Medium viscosity 10. Use local average atmospheric pressure

5integrationV-coneFlow meter installation
5.1 When the medium is a clean liquid


5.2 When the medium is dry and clean gas




5.3 When the medium is a vapor gas

VIintegrationV-coneinternet trafficcountprecautions
(1) Users should provide accurate and scientific parameters when selecting, especially when measuring multi-component gases;
（2）V-cone is a differential pressure instrument that also complies with the relevant requirements of differential pressure instrument measurement systems;
(3) The V-cone should be used in the same way as other throttling devices such as orifice plates, and pressure pipelines should be laid according to the requirements of standard throttling devices;
(4) The appropriate model of V-cone should be selected according to the usage situation. When high precision is required, it is best to choose VCH precision measuring tube type
(5) Although the V-cone requires a relatively short straight pipe section, it is better to install it in places with longer straight pipe sections;
(6) When measuring the diameter of small pipes, it is necessary to ensure that there are no large particles or long fibers in the medium, otherwise it will block the flow gap;
（7）V cones for monitoring or general control can be calibrated periodically for about three years depending on the situation;
（8）Precise measurement of V-cones such as trade settlement should be regularly inspected in accordance with relevant national regulations;
7integrationV-coneinternet trafficcountOrdering Instructions
When consulting or placing an order, please carefully fill in the following parameters in the consultation form as required, ensuring that they are true and reliable, so that we can correctly select and produce for you.

Fill in instructions
1. When the medium is a mixture, if the operating density and viscosity cannot be given, the percentage of components must be given;

2. The type and degree of dirt in the dirty medium should be specified;

3. For special environments and media usage, detailed requirements for instruments must be specified;