What are the two types of high-pressure guns?

The correct answer identifies the two types of high-pressure guns as suction feed and gravity feed. High-pressure spray guns operate by using air pressure to atomize paint, and both suction feed and gravity feed are common methods by which paint is delivered to the gun for spray application.

In a suction feed system, the paint is drawn into the gun from a cup that is located below the nozzle, utilizing atmospheric pressure to pull the paint up through a tube. This method is effective for a variety of applications but may be less efficient with heavier materials.

In contrast, a gravity feed system has a paint cup located directly above the nozzle, allowing gravity to assist in the flow of paint down into the gun. This design typically provides a more consistent flow and is well-suited for thinner materials, making it popular in many professional environments.

Both types of feed systems have their unique advantages and applications, and understanding their differences is crucial for selecting the appropriate spray gun based on the specific requirements of a painting job.