Flow, venturi nozzle application
Power Plant
Petroleum Products and Refining
Water Treatment and Distribution System
Gas Handling and Transportation
Chemical and petrochemical industry

Traffic, venturi nozzle features
Applicable to liquid, gas and steam flow measurement
The best solution for measuring steam flow
Accuracy ≤ ±1.0 %
Measure repeatability is 0.1 %
The lowest measured pressure loss can be guaranteed within the range of differential pressure flow measurement

Flow, description of venturi nozzles
A wide range of applications
Flow nozzle design based on the Bernoulli equation, including the arc-shaped contraction section and a cylindrical throat. Due to its high rigidity, the size of the flow nozzle is not susceptible to temperature and flow, and is more stable than the orifice plate, suitable for application in higher temperature and flow environments.
Flow nozzles are commonly used to measure the flow of steam, non-stick, corrosive and high-speed fluids, suitable for a variety of applications, including steam, air, water, water vapor, gas, chemicals and high temperature applications. . For corrosive fluids, we also offer models with a reinforced inner surface.
High accuracy
Flow nozzles are designed and manufactured to ISO 5167 with an accuracy of ± 1.0% and can achieve up to ± 0.25% accuracy through calibration.
In order to meet the requirements of power plant acceptance testing, we also provide flow nozzles in accordance with ASME PTC-6 standards.
Reducing pressure loss through venturi nozzles
Users can reduce the loss of pressure by installing a venturi nozzle. It contains a standard flow nozzle with a diverging section.
FLC-FN-VN type venturi nozzle has an axisymmetric shape, including a circular arc-shaped contraction section, a cylindrical throat and a diffusion section. The inlet geometry is the same as the inlet of the FLC-FN-FLN (flow nozzle that conforms to the ISA 1932 standard).