Daniel Venturi Tube is a low-pressure-drop metering device identifiable by its tapered inlet, tapered outlet and straight, constricted middle section. It offers constant accuracy, low susceptibility to erosion, high-pressure recovery, and installation at any angle from horizontal to vertical.
This meter’s design provides longer lasting accuracy and lower permanent pressure loss than orifice type meters, reducing maintenance and operating costs. The Venturi flow meter can be built to meet the highest pressure and temperature specifications often limited in other flow meter technologies.
Venturi tubes type Herschell and mouthpiece with flanged ends and weld (BW), made from sheets calendered or forged. For lines 2 to 60 inches. Materials ASTM A516 GR. 60, 65, 70, 316, 321 and 304, ASTM A105.
A Venturi tube is a reliable and easily-managed and maintained instrument that can measure a wide range of clean liquids and gases.
Up to 12 inches , the entire venturi is machined from a single solid bar-stock . Above 12 inches the venture is fabricated from sheet. Rectangular type venture used in ductwork are also fabricated from sheet. Many times the piping geometry does not allow full length of the Venturi Tube.
The Venturi tube is characterized by its tapered inlet and diverging outlet. This design greatly reduces head loss to the system when compared to an orifice plate. In fact- the Venturi can handle 25% to 50% more flow than an orifice for comparable larger line size and lower head loss-
Venturi tubes are available for line sizes from 50 mm to 1200 mm (2 to 48in) and can measure a wide range of relatively clean liquids and gases. The units are designed to ISO5167-1:2003 and have a substantial overall length, being typically 5D long (D = nominal pipe size).
The CV Venturi Flow Meter is a differential pressure element de signed to accurately measure the flow of liquids and gases by forcing the flow into a smaller diameter section of pipe, then measuring the pressure differences between the unrestricted flow and the restricted flow. It can be installed in any position with minimal straight …