A Venturi tube has a conical convergent entry followed by a cylindrical throat &a conical divergent outlet. Manufactured to ISO 5167, BS 1042 standards, it substantially reduces permanent pressure loss. The types are made according to the manufacturing methods of the intern al surface of the entrance cone & profile at the intersection of the entrance cone & throat. Line size
| Line size | Type A-100-800mm (4"-32" NB) Type B-50-250mm (2"-10" NB) Type C-200-1200mm (8"-48" NB) |
| Type | Type A-Cast Convergent section Type B - Machined convergent section Type C-Rough Welded sheet - iron convergent section |
| Accuracy | Type A-±0.7%, Type B-± 1.0%, Type C±1.5% |
| Material of Flange | ASTM A105, A182 GR.F11, A182 GR.F22, SS304, SS316 |