Venturiflow meterUsed to measure the flow rate of single-phase stable fluids in closed pipelines, commonly used to measure the flow rate of fluids such as air, natural gas, coal gas, water, etc.

1. Nominal diameter: 50mm ≤ DN ≤ 1200mm, coarse casting shrinkage section: 100mm ≤ DN ≤ 800mm; Mechanical processing shrinkage section: 50mm ≤ DN ≤ 250mm; Shrinkage section of rough welded iron plate: 200mm ≤ DN ≤ 1200mm;

2. Throttle aperture ratio β: 0.3 ≤ β ≤ 0.75 Coarse casting shrinkage section: 0.3 ≤ β ≤ 0.75; Mechanical processing shrinkage section 0.4 ≤ β ≤ 0.75; Shrinkage section of rough welded iron plate: 0.4 ≤ β ≤ 0.7;

3. Reynolds number range: 2 × 105 ≤ ReD ≤ 2 × 106, coarse casting shrinkage section: 2 × 105 ≤ ReD ≤ 2 × 106; Mechanical processing shrinkage section: 2 × 105 ≤ ReD ≤ 106; Shrinkage section of rough welded iron plate: 2 × 105 ≤ ReD ≤ 2 × 106;

4. Accuracy: Level 1.0