Axial nozzles vs tangential nozzles

What are the differences between the two types of nozzles? When to choose an axial nozzle and when a tangential one?

Axial nozzles vs tangential nozzles

What are the differences between the two types of nozzles? When to choose an axial nozzle and when a tangential one?

Spray nozzles can be divided into four macro groups: full cone nozzles, hollow cone nozzles, straight jet nozzles, and flat fan nozzles.
Full cone nozzles and hollow cone nozzles can be tangential or axial. But what does it mean?

Full cone and hollow cone nozzles can be tangential or axial. But what does it mean?

Axial nozzles vs tangential nozzles

We can identify two main differences between tangential and axial nozzles: their installation and operation.

INSTALLATION
Axial nozzles vs tangential nozzles

Axial and tangential nozzles differ in the way they are installed.

AXIAL NOZZLE
The spray goes in the same direction in which the nozzle was screwed on

TANGENTIAL NOZZLE
The spray proceeds orthogonally to the direction in which the nozzle was screwed on.

OPERATION
Axial nozzles vs tangential nozzles

The second difference between axial and tangential nozzles lies in how the liquid is injected into the nozzle.

AXIAL NOZZLE
If the liquid is injected axially to the spray direction, it is an axial nozzle.

TANGENTIAL NOZZLE
When the liquid is injected tangentially to the spray direction, we call it a tangential nozzle. A duct inside these nozzles tangentially injects the fluid into the turbulence chamber, where the centrifugal force produces a high rotation speed and generates a spray cone. Since these nozzles have a large free passage without a vane, they offer maximum resistance to clogging.

AXIAL FULL CONE NOZZLES

These nozzles use a specially shaped vane placed at the nozzle inlet to give a rotational speed to the fluid flowing through the nozzle. Because of the rotational speed of the fluid, water exiting the nozzle orifice is subjected to centrifugal force and opens up in the shape of a full cone.

TYPICAL APPLICATIONS

  • Cleaning and washing
  • Surface spraying

ADVANTAGES AND DISADVANTAGES

DISCOVER ALL FULL CONE NOZZLES

TANGENTIAL FULL CONE NOZZLES

These type of full cone nozzle produces a high and strong rotation of the liquid. There’s no vane inside the whirl chamber which has free internal passages and for this reason these nozzles are less prone to clogging. Moreover, a specially designed tip placed at the bottom of these nozzles increases their atomizing effect.

TYPICAL APPLICATIONS

  • Injection of chemical components
  • Scrubbers

ADVANTAGES AND DISADVANTAGES

AXIAL HOLLOW CONE NOZZLES

Hollow cone nozzles provide a finely atomized mist and a very uniform hollow cone spray pattern. They are ideal to capture suspended particles and offer higher performances than other nozzles with same operating pressure and capacity. These nozzles are widely used for their efficiency in cooling and cleaning of gases, dust control, absorption processes and air-humidification.

TYPICAL APPLICATIONS

  • Cooling and gas cleaning
  • Abatement of fumes and dust

ADVANTAGES AND DISADVANTAGES

DISCOVER ALL HOLLOW CONE NOZZLES

TANGENTIAL HOLLOW CONE NOZZLES

These nozzles use a tangential injection of liquid into a whirling chamber to generate centrifugal forces which break up the liquid vein as soon as it leaves the orifice. Precisely designed orifice profiles, making use of the Coanda effect, provide the ability to obtain very large spray angles.

TYPICAL APPLICATIONS

  • Air humidification
  • Foam abatement
  • Cooling

ADVANTAGES AND DISADVANTAGES

Comparison table

Axial nozzles vs tangential nozzles

What are the characteristics of axial nozzles and tangential nozzles? How do they differ?

UGELLI ASSIALIUGELLI TANGENZIALI
AAALBA | BCDATBV | BW
++++FREE PASSAGE+++
++++PRECISE DISTRIBUTION+
++++DROP SIZE+
+COMPACTNESS++
++EASY CLEANING AND ASSEMBLY
+++COST+

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