Venturi Nozzle, Flow Nozzle (FLC-FN-PIP, FLC-FN-FLN, FLC-FN-VN)

for in-pipe installation, for flange assembly

Applications

  • Power generation
  • Oil production and refining
  • Water treatment and distribution
  • Gas processing and transmission
  • Chemical and petrochemical industries

Special Features

  • Suitable for liquid, gas and steam flow measurement
  • Optimum solution for measuring the flow of steam
  • Accuracy ≤ ±0.1 % of actual flow rate
  • Repeatability of measurement 0.1 %
  • Lowest pressure loss in the family of primary flow elements

Sales Contact (Wika.sales@asyatrafo.com)

 

Description

 

 

Wide variety of applications
The design of the flow nozzle is based on Bernoulli’s equation and consists of a convergent section with a rounded profile and a cylindrical throat. Due to its rigidity the flow nozzle is dimensionally more stable at higher temperature and flow rate than an orifice.

The flow nozzle is generally used for measuring the flow of steam as well as non-viscous, erosive and high-velocity media. It can be used in a wide variety of applications that include steam, air, water, vapour, gas, chemical substances and high temperatures. For applications with erosive media a hardened internal surface is available.

High accuracy
The design and manufacture of the flow nozzles complies with the requirements of ISO 5167. Thus an accuracy of ±1.0 % is ensured. By means of a calibration a higher accuracy of down to ±0.25 % can be achieved.

For acceptance tests of power plants, flow nozzles to ASME PTC-6 are also available.

 

Reduced pressure loss through a Venturi nozzle
To reduce the pressure loss, a Venturi nozzle can be offered. It combines the standard features of a flow nozzle with a divergent section.

The profile of the model FLC-FN-VN Venturi nozzle is axisymmetric and consists of a convergent inlet section with a rounded profile, a cylindrical throat section and also a diffuser. The inlet of the Venturi nozzle has the same geometry as model FLC-FN-FLN (flow nozzle to ISA 1932).

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