What Is a Circuit Vent

Circuit Vent. A vent that connects to a horizontal drainage branch and vents two traps to no more than eight traps or trapped fixtures connected into a battery. … A pipe installed to vent a fixture trap and that connects with the vent system above the fixture served or terminates in the open air.

What is Circuit vent used for?

Circuit vent. The vent that connects to a horizontal drainage branch and vents two traps to a maximum of eight traps connected into a battery of fixtures. Circuit vent means a method of venting two to eight traps or trapped fixtures without providing an individual vent for each trap or fixture. Circuit vent.

How many fixtures may be protected by a single circuit vent?

A soil-or-waste pipe having a hydraulic load not greater than 6 fixture units may act as a relief vent for a branch that is circuit-vented.