What is the name of the vent that connects to the drawing pipe through a fitting at an angle not greater than forty-five degrees to the vertical?

The name of the vent that connects to the drainage pipe through a fitting at an angle not greater than forty-five degrees to the vertical is referred to as a side vent. This design is crucial in plumbing systems as it helps to maintain proper ventilation and air balance within the drainage system. A side vent allows for better drainage and minimizes the risk of clogs by ensuring that air can easily flow into the system, which aids in the even movement of waste materials.

Understanding the role of a side vent is essential, as it directly impacts the efficiency of the plumbing system. In many cases, other types of vents, like the main vent or common vent, serve different purposes. The main vent is responsible for venting an entire system, while a common vent connects two or more fixtures that are located close together. A branch vent, on the other hand, connects individual fixtures to the main vent. Each of these serves a specific role, but none directly describe a vent connected at an angle as accurately as a side vent does.