Commercial Sink Drain Air Gap

A 2 pipe requires a 4 air gap.

Commercial sink drain air gap.

Tru gap air gap fixture with pipe mount 21 56. A piping arrangement in which a drain from a fixture. The air gap body separates the hose running dirty water from the hose running to the drain. Proper air gap installation makes sure dirty water doesn t contaminate the municipal water supply the supply of tap water you and everyone else in your city drinks.

For discharge supply pipes that are larger than 1 in diameter the minimum gap distance is usually twice the pipe s diameter e g. A sped up video of repairing commercial sink plumbing. If you are running the air gap directly to the drain join the tube to the y branch tailpiece connecting the sink to the drain and secure the tubing with a hose clamp. For discharge pipes or hoses larger than 1 the requirement is that the air gap space height must be at least two 2 times the diameter of the hose above the drain overflow.

A small tube protrudes from the center of the pipe precisely sized to accommodate an air gap drain hose. The pipe connects at one end to a sink basin s strainer and the opposite end to the sink s p trap. Many are familiar with dishwasher air gaps but there are other situations in which a direct drain connection might be prohibited and an air gap necessary. Secure the tube to the air gap with a hose clamp.

The pipes had a few attempted repairs in the past. What is an air gap. In this video the old pipes are cut out and properl. The space between the overflow rim of the fixture and the end of the indirect discharge piping is called the air gap.

An air gap is an amount of space that separates a water line from an ice machine drain to a sewer. Air gap drainage system. October 17 2017 by wodson this commercial kitchen sink air gap graphic has 20 dominated colors which include snowflake white sunny pavement silver uniform grey ivory tin honeydew vapour steel foundation white kettleman sefid white lovely euphoric delight red cedar spiced coral pink clay pot cute crab quartz pink chi gong. Measure and cut a length of 7 8 tubing to connect the air gap to either your drain or your garbage disposal.

This air gap allows any back up waste water to spill out over the overflow rim of the plumbing fixture without ever touching the indirect waste discharge. For example if the discharge hose is 2 the air gap space must be at least 4 above the drain overflow. Health inspectors may also refer to this as backflow prevention which is a more general term to mean any apparatus that prevents water from flowing back up a water line. Most plumbing codes require a minimum 2 air gap.

The unobstructed vertical distance through the free atmosphere between the outlet of the waste pipe and the flood level rim of the receptacle into which the waste pipe is discharging.