New 1/2 NPT No Drip External Mix Air Atomizing Spray Nozzles from EXAIR (Cincinnati, OH) work in the same way its standard atomizing nozzles do, but have the added benefit of positively stopping liquid flow when compressed air is shut off. External Mix Air Atomizing Spray Nozzles have the highest flow rates and allow the air and liquid flow to be adjusted independently. They can be used on liquids above 300 centipoise. The patented No Drip design requires no additional airline to control the No Drip feature.
When spraying any type of liquid, post-spray drips can cause big problems. Unwanted drips can ruin product function on sealing or mating surfaces and ruin painted or coated finishes. Also, excess liquid flow wastes resources such as expensive coatings, chemicals or water. When the compressed air supply is shut off, the no drip nozzle positively seals off the flow of liquid eliminating the possibility of drips.