What are the characteristics of spiral nozzles?

There is one vane in the spiral nozzles, it allows liquid can flow clockwise or counterclockwise by vane’s transmit. The centrifugal force is generated by water pressure, which produces a cone spray. The spiral nozzles are different. The spiral nozzle is a typical impact dispersion sprayer. There is no structure inside the nozzle. This is an open channel. Water passes through the spiral interface, so the product is sprayed in layers.
It is not easy to block. Because the spiral nozzle has no internal structure, the impurities in the wastewater can pass through the nozzle without blocking, which is undoubtedly the best gospel of waste gas and wastewater. There are many impurities in the wastewater, and this problem is solved by a spiral nozzle.
Multi-layer coating, the traditional 120-degree spiral nozzle has a 3 to 4 layer interface, and some angles even have many layers of interface. The spray effect is that each interface forms a conical spray surface. Suppose a spiral nozzle has 3-4 conical spray surfaces and 6-7 spray surfaces. How many times is the effect of a common conical solid nozzle?