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XG-LX series wedge flowmeter Manufacturers
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  • XG-LX series wedge flowmeter
  • XG-LX series wedge flowmeter

XG-LX series wedge flowmeter

The XG-LX wedge flowmeter system is our company's latest-generation differential pressure flow instrument system. It meets the measurement requirements of most fluids, including clean liquids, gases, and steam. It is particularly suitable for measuring fluids that are difficult to measure with traditional flow meters, such as pulp, slurry, oil slurry, fuel oil, residual oil, coal tar, and other high-viscosity fluids and suspensions that are prone to crystallization and dirt. Therefore, wedge-shaped flowmeter systems are widely used for measuring high-viscosity, low-Reynolds-number media in fields such as petroleum, chemical, power, and light industry.

Product Features:
1. The use of "V" - shaped flow components can eliminate stagnant areas and prevent blockages in the system.
2. The Reynolds number has a wide range of applications, and even at a Reynolds number of 500, it still maintains a square relationship between differential pressure and flow rate.
3. Easy to install, use, and maintain.
4. High measurement accuracy, expanded uncertainty of flow calibration: ± 0.5%~± 0.2% (water calibration or oil calibration).
5. Long-term stability is good, praised by users as a zero-failure-rate instrument.
6. One-time split-type meter; replacing the wedge (middle) can expand the range.
7. Diverse styles:
Normal type: Within the range of 1:10, the nonlinear error of the flow coefficient is ≤± 1%.
High performance type: The flow calibration expansion uncertainty within the range of 1:3 is ± 0.5%~± 0.2%.
8. The overpressure alarm value and low-pressure alarm value can be set according to the on-site pressure situation. When overpressure or low-pressure situations occur during use, the instrument will automatically sound and light an alarm, effectively preventing production safety accidents caused by overpressure.                                                             

Application industry:
1. Petrochemical industry: Measuring high-viscosity and particulate media such as crude oil, heavy oil, residual oil, coal slurry, etc.; it is a commonly used throttling instrument in refining equipment.
2. Metallurgical mines: Used for measuring slurry, coal washing water, and blast furnace/coke oven gas; suitable for working conditions with high dust and solid particles.
3. Electric thermal power: Boiler fuel, desulfurization slurry, and ash water flow monitoring, capable of withstanding high temperatures and dirty fluids.
4. Environmental water treatment: Measurement of sewage, sludge reflux, and wastewater containing impurities, with a wedge self-flushing structure that is not prone to sludge deposition.

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FAQ Performance Specifications

Q1: What is the principle of a wedge flowmeter, and what is its biggest advantage?
A: Belonging to the differential pressure throttling flowmeter, the fluid flows through a V-shaped wedge block in the pipeline, and a differential pressure is generated before and after the wedge block. The flow rate is calculated based on the differential pressure. Core advantages: No dead corners, self-flushing effect, skilled in measuring high-viscosity and solid-particle-containing dirty media, stable measurement even at low Reynolds numbers, and support for bidirectional flow detection.

Q2: What are the requirements for the straight pipe section of a wedge-shaped flowmeter?
A: Requires a length shorter than the orifice plate, generally 5D in the front and 3D in the back (D is the inner diameter of the pipeline); Elbows, valves, and reducers can disturb the flow field, so try to avoid them as much as possible; During installation, the pointed corners of the wedges should face downwards to ensure smooth flow of solid particles and avoid accumulation.

Q3: Under what circumstances is traffic measurement inaccurate?
A: Common reasons: ① Blockage, accumulation of fluid, and leakage of pressure pipes; ② Wedge wear and scaling change the throttling area; ③ The transmitter range and square root parameter configuration are incorrect; ④ The viscosity of the medium differs significantly from the calibration conditions. Prioritize checking the sealing of the impulse piping and transmitter parameters.

Q4: Does the wedge flowmeter need regular maintenance?
A: No moving parts, low daily maintenance. It is recommended to regularly blow and clean the pressure pipeline under solid/high dust conditions; Open the three-valve group balance valve to protect the transmitter during long-term shutdown; When blowing the pipeline, the flowmeter needs to be removed to prevent welding slag from scratching the surface of the wedge block and affecting accuracy.

Performance Specifications: (For sizes above DN300, please contact our company)

Model Nominal Diameter (mm) Wedge Ratio h/D Flow Range (m³/h) Length (mm) Working Pressure (MPa) Medium Temperature (℃) Water Calibration Accuracy (or Oil Calibration) Flange Standard
XG-LX-G-15 15 0.2 ~ 0.5 0.28 ~ 2.7 600 0.2 ~ 14 -20 ~ 300 0.2% / 0.5% GB9113-88
XG-LX-G-25 25 0.2 ~ 0.5 0.8 ~ 7.5 600 0.2 ~ 14 -20 ~ 300 0.2% / 0.5% GB9113-88
XG-LX-G-40 40 0.2 ~ 0.5 1.5 ~ 21 700 0.2 ~ 14 -20 ~ 300 0.2% / 0.5% GB9113-88
XG-LX-G-50 50 0.2 ~ 0.5 3 ~ 33 700 0.2 ~ 14 -20 ~ 300 0.2% / 0.5% GB9113-88
XG-LX-G-80 80 0.2 ~ 0.5 6 ~ 75 800 0.2 ~ 14 -20 ~ 300 0.2% / 0.5% GB9113-88
XG-LX-G-100 100 0.2 ~ 0.5 17 ~ 100 800 0.2 ~ 14 -20 ~ 300 0.2% / 0.5% GB9113-88
XG-LX-G-150 150 0.3 ~ 0.5 45 ~ 310 1000 0.2 ~ 14 -20 ~ 300 0.2% / 0.5% GB9113-88
XG-LX-G-200 200 0.3 ~ 0.5 68 ~ 460 1000 0.2 ~ 14 -20 ~ 300 0.2% / 0.5% GB9113-88
XG-LX-G-250 250 0.3 ~ 0.5 109 ~ 865 1200 0.2 ~ 14 -20 ~ 300 0.2% / 0.5% GB9113-88
XG-LX-G-300 300 0.3 ~ 0.5 155 ~ 1225 1200 0.2 ~ 14 -20 ~ 300 0.2% / 0.5% GB9113-88

 

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Xinguo Group Co., Ltd.
ABOUT US Xinguo Group Co., Ltd.
Xinguo Group Co., Ltd. is a high-tech enterprise with subsidiaries including Anhui Xinguo Instrument Co., Ltd., Anhui Xinguo Alloy Co., Ltd., Anhui Xinguo Cable Co., Ltd. and Anhui Xinguo Precious Metals Co., Ltd. Founded in 1997, the Group is located in Tianchang City, Anhui Province — a National Civilized City. It has a registered capital of 118 million RMB, covers a land area of over 150 mu and a building area of 60,000 square meters. The company currently has more than 300 employees, among whom over 50 are professional and technical personnel including senior engineers, engineers and assistant engineers.
The Group is a China Custom XG-LX series wedge flowmeter Manufacturers and XG-LX series wedge flowmeter Supplier, mainly engages in the R&D, production and sales of temperature instruments, pressure instruments, level instruments, flow instruments and digital display instruments. Its product portfolio also encompasses power cables, control cables, compensation cables, computer cables, signal cables, MI heating cables, mineral insulated cables, electric heat tracing tapes, cable trays and accessories, high and low voltage distribution equipment, complete automation control systems, instrument valves, pipeline valves and fittings, glass instruments and laboratory equipment. We also supply platinum-rhodium wires, precision alloys and complete mechanical equipment, while providing supporting processing, manufacturing, sales and technical services. Additionally, we deal in professional instrument materials, alloy materials and precious metals. Our products are widely applied in power, petroleum, chemical, metallurgy, building materials, machinery, food, aerospace, new energy and other industrial sectors, as well as scientific research and education fields.
Anhui Xinguo Alloy Co., Ltd. is dedicated to manufacturing a full range of precision alloy materials and serves as a council member of the Instrument Materials Branch of China Instrument & Control Society. Its flagship products cover thermocouple alloy wires (K, N, E, J, T types), thermocouple compensation alloy wires (KX, EX, NX, JX, TX, KCA, KCB, NC, SC), high-resistance heating alloys, precision resistance alloys, heating resistance alloys, pure nickel wires, manganese-copper alloys and Monel alloys. These products are extensively used in aviation, petroleum, chemical engineering, machinery manufacturing, power and energy industries.
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