Advanced Differential Pressure V-Cone Flow Meter

Overview

The JC-W V-Cone flow meter operates on the same principle as other differential pressure flow meters, utilizing a throttling mechanism to measure flow. It adheres to the laws of mass conservation (continuity equation) and energy conservation (Bernoulli equation) in closed pipes. Unlike traditional devices that throttle and constrict the flow to the center axis of the pipe, the V-Cone flow meter uses a V-shaped sharp cone that is coaxially installed within the pipe. This cone gradually constricts the fluid towards the inner wall of the pipe. The flow rate is determined by measuring the differential pressure before and after this V-shaped cone. Under stable flow conditions, the velocity of the fluid in the pipe is proportional to the square root of the differential pressure.

The inner cone tube is based on the Venturi tube measurement principle but represents a significant structural evolution over traditional Venturi tubes. It combines the advantages of the Venturi tube, annular orifice plate, and wear-resistant orifice plate into a new generation of throttling devices.

The V-Cone flow meter is suitable for almost all types of gases, liquids, and steam media.

Product Features

1. High Accuracy and Repeatability: The V-Cone flow meter provides precise flow measurement with excellent repeatability.

2. Wide Rangeability: It can achieve a rangeability of 10:1 without requiring secondary instrument software correction.

3. Self-Rectifying: The flow meter's self-rectifying function minimizes the need for long straight pipe sections (only 1–3D upstream and 0–1D downstream), resulting in low pressure loss.

4. Self-Cleaning: It can measure non-clean fluids, fluids containing solid particles, low-pressure fluids, high-moisture gases, and various dirty fluids.

5. Self-Protecting: The critical parts of the throttling device are wear-resistant, ensuring long-term stable operation.

6. Durability: The V-Cone flow meter is resistant to high temperatures, high pressures, corrosion, and vibration.

7. Versatility: It can measure a wide variety of fluids (liquids, gases, steam) across a broad flow range (from very low to very high flow rates) and is suitable for pipelines with diameters from DN15 to DN3000.

Technical Parameters

• Accuracy: 0.5% (can reach 0.3% after calibration)

• Repeatability: ±0.1% F.S.

• Rangeability: 10:1, extendable to 50:1

• Required Straight Pipe Length: Upstream 1–3D, Downstream 0–1D

• Reynolds Number Range: 5x10^3 to 1x10^7

• Pipe Diameter: DN15 to DN1600, larger sizes available upon request

• Nominal Pressure: ≤6.3 MPa, maximum ≤16 MPa

• Applicable Media: Suitable for gases, steam, liquids, and special fluids