Nozzles Affected Factors

Choice of strainer

 Selection of Strainer

The nozzle will choose different strainer according to the different situation,big particle diameter will choose the big strainer, if small will choose the small one,the strainer’s size is depended on the mesh number

Factors affecting nozzle performance

When the liquid flow,it will occur the friction between the molecules,we call this character is stickiness,the size of stickiness Is viscosity , and it is used to characterize the resistance factor related to the properties of the liquid. The viscosity of the liquid is a major factor affecting the shape of the spray, it also has the effect to the flow rate. Compared to water,high viscosity liquid will need more high bottom limited pressure, and forming the more smaller spray angle.

Surface Tension
Changing the temperature ,it can’t change the spray character, but it will be affected by the viscosity,surface tension and specific gravity.

The surface tension is the tension of the liquid surface layer acting on any boundary along the surface due to the unbalanced gravitational attraction of the molecular gravitational force. The nature of the surface tension is more pronounced at the low working pressure. The higher surface tension reduces the spray angle, especially for hollow cones and flat fan spray nozzles.

Increase in Operating PressureIncrease in Specific GravityIncrease in ViscosityIncrease in Fluid Temperature Increase in Surface Tension
Pattern QualityImprovesNegligibleDeterioratesImprovesNegligible
CapacityIncreases Decreases***No Effect
Spray AngleIncrease Then DecreasesNegligibleDecreasesIncreasesDecreases
Drop SizeDecreasesNegligibleIncreases DecreasesIncreases
WearIncreasesNegligibleDecreases**No Effect

Spray angle and cover area

The spray flow rate is roughly proportional to the square root of the spray pressure under the same medium condition. The flow rate of any nozzle under a certain pressure can calculate the flow rate of any pressure. The known spray flow rate is Q1, and the corresponding pressure is F1. When the known pressure is F2, the unknown flow Qx has the relationship


Spray Nozzle Maintenance Tips

Clean Nozzles Regularly 
Regular nozzle inspection will help identify nozzles that need cleaning to prevent problems. Nozzles should only be cleaned with soft tools or with chemicals approved for the type of nozzle material. Orifice edges and many surfaces can be easily damaged, which affects nozzle performance. New spray nozzles will always perform better than a cleaned nozzle and could save the cost of lost productivity or poor product quality. 
Finished Product Quality 
When spray nozzles are in environments that are impossible to monitor in real time, such as spray booths, a poor quality finish may indicate a closer inspection is required. 
A decrease in system pressure could indicate excessive nozzle wear. An increase in system pressure could indicate that some nozzles have become clogged. 

All nozzles have a specified spray pattern, distribution, and spray angle. If performance is not as expected, it could indicate that the nozzles are worn or plugged.

Quick Contact

Find A Nozzle

Find A Nozzle

Spray Pattern


Connection Size

Connection Type



Spray Pattern

Flow Rate

Word Pressure


Thread Size & Type

Email *