VenturiFlow MeterA tɔŋ bɛ̈n ya tɛ̈n ya tɛ̈n ya tɛ̈n ya tɛ̈n ya tɛ̈n ya tɛ̈n ya tɛ̈n ya tɛ̈n ya tɛ̈n ya tɛ̈n ya tɛ̈n ya tɛ̈n

1、Nominal diameter: 50mm≤DN≤1200mm, rough cast shrinkage section: 100mm≤DN≤800mm; Mechanical processing shrinkage segment: 50mm≤DN≤250mm; Raw welded iron plate shrinkage segment: 200mm≤DN≤1200mm;

2、Reduction hole ratio β: 0.3≤β≤0.75 coarse casting shrinkage segment: 0.3≤β≤0.75; Mechanical processing shrinkage segment 0.4≤β≤0.75; Raw welded iron plate shrinkage segment: 0.4≤β≤0.7;

3, Renault lamba range: 2 × 105 ≤ ReD ≤ 2 × 106, rough cast shrinkage segment: 2 × 105 ≤ ReD ≤ 2 × 106; Mechanical processing shrinkage segment: 2×105≤ReD≤106; Raw welded iron plate shrinkage section: 2×105≤ReD≤2×106;

4, tɛɛr: 1.0