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Flow meter
Venturi tube

Overview
应用于各种行业各种介质的流量测量、控制和调节;它具有压力损失很小、寿命长等特点。 Venturi is used for flow measurement, control and regulation of various media in various industries; it has the characteristics of small pressure loss and long life. Venturi tube is also known as standard Venturi tube and low-pressure loss Venturi tube. It retains the basic characteristics of classic Venturi tube. The length of the inlet cylinder section, the contraction section, the contraction angle and the diffusion angle are all changed. The whole device is more classic Venturi The inner tube is shortened.
型标准文丘里管系标准节流件之一,它配差压仪表,用于测量封闭管道中单相稳定流体 ( 液体、气体或蒸气)的体积流量。 DXLGW standard Venturi pipe is one of the standard throttling parts. It is equipped with a differential pressure instrument for measuring the volume flow of a single-phase stable fluid ( liquid, gas or vapor) in a closed pipeline . Because of its simple structure and reliable operation, it has been widely used in industrial sectors such as chemical industry, petroleum, light industry, medicine, fertilizer, and metallurgy.
的详细介绍 Detailed introduction of Venturi tube
    Scope of application
、公称直径: 50mm≤DN≤1200mm (超过此范围需标定) 1. Nominal diameter: 50mm≤DN≤1200mm (beyond this range, calibration is required)
100mm≤DN≤800mm Rough casting shrinkage: 100mm≤DN≤800mm
50mm≤DN≤250mm Mechanical processing shrinkage: 50mm≤DN≤250mm
200mm≤DN≤1200mm Shrinking section of rough welded iron plate: 200mm≤DN≤1200mm
、节流孔径比 β 0.3≤β≤0.75 2. Throttle aperture ratio β : 0.3≤β≤0.75
0.3≤β≤0.75 Rough casting shrinkage section: 0.3≤β≤0.75
0.4≤β≤0.75 Mechanical processing shrinkage: 0.4≤β≤0.75
0.4≤β≤0.7 Shrinking section of rough welded iron plate: 0.4≤β≤0.7
、雷诺数范围: 7×10 3≤ReD≤2×10 6 3. Reynolds number range: 7 × 10 3≤ReD≤2 × 10 6
、精度等级: 1 级, 1.5 4. Accuracy level: 1 level, 1.5 level
structure type
是由入口段、两种不同收缩段、喉部及扩散段组成、具体外形结构见下图: The short venturi is composed of an inlet section, two different constricted sections, a throat and a diffusion section. The specific shape and structure are shown in the following figure: