Venturi Tube

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.

Venturi tube
Line Size Type A - 100 - 800mm (4" - 32" NB)
Type B-50-250mm (2"-10" NB) E
Type C -200-1200mm (8" - 48" NB)
Types Long radius nozzle, ISA 1932
Type Type A- Cast Convergent section ,Type B - Machined convergent section ,Type C - Rough Welded sheet - iron convergent section.
Accuracy TypeA-1+0.7%,Type B-+1.0%, TypeC - + 1.5%