Spray Impact
Impact is a measure of the force at which a spray liquid impinges on a surface. Its value depends on the six factors: liquid density, nozzle type, working pressure, flow rate, spray angle and installation distance.
Increasing the fluid pressure increases the overall internal energy of the fluid. How much of this increase in energy is used to atomize the spray and how much is used to increase momentum and impact depends very much on the nozzle being used.
The solid stream nozzles provide more impact than the flat fan nozzle, because the solid stream is concentrating more flow per area than the flat fan nozzle. The flat fan nozzles have a wider spray angle and the spray will provide you with more coverage but will concentrate more flow over a larger concentrated area.
A Hollow Cone Nozzle
Model A is a tangential-flow hollow cone nozzle with a female thread body, which is a combination of two pieces. The range of flow rate is from 0.32LPM to 78LPM at 2 bar. It delivers a standard spray angles of 55°~90° at 2 bar.
Read MoreBB Full Cone Nozzle
Model BB is the most commonly used full cone nozzle. It has a built-in X-style vane, which can better reduce clogging. If you want fast delivery, BB nozzle is the best choice.
Read MoreCB Small-flow Flat Nozzle
Model CB is a small flow flat fan nozzle with a T-shaped design to be more convenient and accurate arrangement and better spray effect. The coverage area overlaps by 30% to obtain complementary and more uniform distribution.
Read MoreDA Standard Solid Stream Nozzle
DA solid stream nozzle is complete brass or stainless nozzle without any inserts. The model produces a precise, concentrated and high-velocity stream which is longer distances than flat fan nozzles to handle tough cleaning applications.
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General rules of thumb are that solid stream nozzles are the most efficient at transferring energy into momentum, followed by flat fan nozzles, then hollow cone nozzles, then full cone nozzles. It should be noted that often nozzles will be discussed as being very energy efficient. This often means they are very efficient at using internal fluid energy to atomize the fluid and so in this respect are very inefficient at energy transfer.
Nozzle Coverage Calculation
The table demonstrates how the theoretical coverage from a spray nozzle of a specific included angle varies as a function of distance from the nozzle. ...
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Droplet Size Basics
The spray pattern of a nozzle is made up of many droplets of varying sizes. Droplet size is the diameter of an individual spray droplet and measured in microns (micrometers) often notated with the symbol µ. One micron equals 0.001 mm(0.0000394″); there are 25,400 microns in one inch. For example, the diameter of a human hair is about 100 microns. ...
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Main Factors Affecting Spray
All the data relating to our nozzles contained in our catalog are based on spraying water at standard temperatures. When spraying liquids other than water, performance is likely to be different. The following presentation describes how various liquid properties and operating conditions affect performance. ...
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