GFM81 series carbon steel V-cone flow sensor

NegotiableUpdate on 09/18

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Overview

Overview of GFM81 series carbon steel V-cone flow sensor GFM81 series carbon steel V-cone flow sensor (V-cone flowmeter) is a differential pressure flowmeter, and its successful development is a qualitative leap in differential pressure flow measurement

Product Details

GFM81 series carbon steel V-cone flow sensor

Overview

The GFM81 series carbon steel V-cone flowmeter is a differential pressure flowmeter, and its successful development is a qualitative leap in differential pressure flow measurement. It utilizes the throttling effect generated by the V-cone in the flow field to measure the flow rate by detecting the upstream and downstream pressure difference. Compared with ordinary throttling components, it has changed the throttling layout from central orifice throttling to annular throttling. Practical use has proven that compared with other flow meters, V-cone flowmeters have the advantages of high long-term accuracy, good stability, limited installation conditions, wear resistance, wide measurement range, low pressure loss, and suitability for contaminated media. Moreover, the V-cone itself, as a rectifier for the flow field, has become an excellent new type of flowmeter with unique performance. The V-cone flowmeter, composed of a V-cone sensor and a differential pressure transmitter, can accurately measure the flow rate of various media within a wide Reynolds number range (8 × 103 ≤ Re ≤ 5 × 107).

GFM81 series carbon steel V-cone flow sensorMain technical parameters

1. Accuracy level: 0.5 level (differential pressure flow transmitter accuracy should be higher than 0.2 level, including 0.2 level), (β: 0.45-0.85, when β<0.55 and range ratio 4:1, accuracy level: ≤ 0.30)

2. Repeatability: 0.1%

3. Work pressure: 0-40MPa (with multiple pressure levels to choose from)

4. Working temperature: -40 to 850 ° C

5. Environmental temperature: -40 to 65 ° C

6. Installation requirements for straight pipe section: front 0-3D straight pipe, rear 0-1D straight pipe section

7. Range width ratio: usually 10:1, selecting appropriate parameters can achieve 50:1

8. Small pressure loss: For the same β value, the pressure loss is 1/3 to 1/5 of the orifice plate

9. Caliber ranging from DN25 to DN2000

GFM81 series carbon steel V-cone flow sensorTechnical features:

Low installation requirements:

1. Front 0-3D straight pipe, rear 0-1D straight pipe section;

2. Range width ratio: usually 10:1, selecting appropriate parameters can achieve up to 50:1;
3. Small pressure loss: For the same β value, the pressure loss is 1/3 to 1/5 of the orifice plate;
4. Wear resistance: After throttling the streamlined cone, a vacuum layer effect is generated on the surface of the cone, making it less prone to wear;
5. No blockage, no adhesion: The conical thorough blowing design avoids the retention of residues, condensates, or particles in the fluid;
6. Good long-term stability: The β value can remain unchanged for a long time and ensure accurate measurement over the long term;
7. High precision: 0.5 level;
8. Good repeatability: better than 0.1%;
9. Signal stability: "Signal fluctuation" is 1/10 of the orifice plate;
10. Wide range of beta values: The unique geometric shape of the V-cone flow sensor allows for a wide range of beta values;
11. Wide caliber range: DN25 to DN2000;
12. Measurable high temperature and high pressure medium: maximum working temperature of 850 ℃, maximum pressure of 40MPa;
13. Measurable dirty media (coke oven gas, blast furnace gas, raw oil, residual oil, etc.);
14. Measurable gas-liquid two-phase media (moisture, condensate, etc.);

1. Flange typeGFM81S 碳钢V锥流量传感器

Connection method: flange (flat welding and butt welding)
Caliber: DN15 to DN2000
Pressure tapping method: socket welding, flange, thread
Pressure: 0-40MPa
Temperature: -40~850 ℃

Material: 304 stainless steel, 316L stainless steel, 20 # carbon steel (see selection table for details)
Application: Liquid, Gas, Steam
Applicable medium: Widely used for flow measurement in industries such as municipal, power, chemical, petrochemical, metallurgical, and food processing,
Almost applicable to all gas and liquid media.

2. Direct welding typeGFM81Z Carbon Steel V-Cone Flow Sensor

Connection method: directly welded to the process pipeline
Caliber: DN15 to DN2000
Pressure tapping method: socket welding, flange, thread
Pressure: 0-40MPa
Temperature: -40~850 ℃
Material: 304 stainless steel, 316L stainless steel, 20 # carbon steel (see selection table for details)
Application: Oil pipeline, gas pipeline, steam pipeline network, high-pressure process pipeline

3. Clamping typeGFM81D 碳钢V锥流量传感器

Connection method: flange end face clamp
Caliber: DN15~DN150
Pressure tapping method: socket welding, threaded
Pressure: 0-40MPa
Temperature: -40~850 ℃
Material: 304 stainless steel, 316L stainless steel, 20 # carbon steel (see selection table for details)
Application: Liquid, Gas, Steam

V-cone flowmeter composed of V-cone sensor and differential pressure transmitter

According to different user requirements, the supply of flow detection instruments composed of V-cone sensors and differential pressure transmitters is divided into two categories:
1. V-cone sensor
Only the detection part (V-cone and measuring pipeline) that provides differential pressure signals is provided, and differential pressure transmitters, three valve groups, and flow display parts are not provided. The output signal is differential pressure. Users are responsible for providing matching services themselves.
2. V-cone flowmeter
Composed of a V-cone sensor and a differential pressure transmitter. There are two types of structures: split type installation and integrated type installation.
The split type installation consists of independent V-cone sensors and differential pressure transmitters. The connection of the pressure pipe between the V-cone sensor and the differential pressure transmitter is completed by the user themselves. And differential pressure transmitters can be supplied together.
Integrated installation means that the differential pressure transmitter, three valve group, and V-cone sensor are already connected as a whole when the product leaves the factory. After purchasing the integrated V-cone flowmeter, users do not need to connect the pressure pipe when using it. If corresponding flow integrators, pressure transmitters, and temperature transmitters need to be connected, they can be supplied together

Fluids that can be successfully measured:

1. Gas

Gas: Coke oven gas, blast furnace gas, city gas
Natural gas: including natural gas with a moisture content of 5% or more
Various hydrocarbon gases: alkanes, alkenes, and other gases
Production of various gases: hydrogen, helium, argon, oxygen, nitrogen, etc
Corrosive gases: wet chloride gases, etc
Air: including air containing water, dust, compressed air, etc
Flue gas: flue gas emitted from various boilers and heating furnaces
2. Steam: saturated steam, superheated steam
3. Liquid
Oil: crude oil, fuel oil, hydrated emulsified oil, diesel, hydraulic oil, etc
Water: raw water, drinking water, production water, sewage, etc
Various aqueous solutions: acid, alkali, saline solution, etc
Organic chemicals: methanol, ethylene glycol, xylene, etc

4. Special fluid
Oil+HC gas+sand
Aerated water: H2O+N2+air; H2O+CO2, etc

Installation structure diagram