Ventilation And Ventilation Systems Flashcards
A pipe installed to provide a flow of air to or from a drainage system or to provide circulation of air within such system to protect the trap seal from siphonage and backpressure
Vent
The process of supplying or removing air by natural or artificial means to of from any space, such air may or may have not been conditioned
Ventilation
A system of pipes or openings used for ensuring the circulation of air in a plumbing system and for reducing the pressure exerted on the traps
Vent system
Types of ventilation systems (14)
- vent stack, main vent
- Stack vent, soil and waste vent
- Individual/ back vent
- Unit/ common/ dual/ duplex
- Circuit vent
- Loop vent/ venting loop
- Looped vent
- Yoke vent
- Wet vent
- Fixture vent
- Branch vent
- Revent
- Local vent/ local ventilating pipe/ vapor vent
- Ejector vent
A vertical vent pipe installed primarily for the purpose of providing circulation of air to or from any part of the building drainage system
Vent stack, main vent
The extension of a soil or waste stack above the highest horizontal branch drain or fixture branch connected to the stack
Stack vent, soil and waste vent
Is a type of venting system where the vent connects with a single fixture trap, usually at the back and extends vertically and connects with a stack vent, a vents stack or a branch vent
Individual/ back vent
Sometimes referred to as dual or duplex vent. As the name implies, a common vent pipe connected to the dual fixture traps
Unit/ common/ dual/ duplex
A branch vent which serves two or more traps and extends from in front of the last fixture connection of a horizontal branch to the vent stack
Circuit vent
A vent arrangement for a group of plumbing fixtures; consists of a vent pipe which is connected to the waste or soil branch immediately before the first fixture of the group
Loop vent/ venting loop
A type of ventilation system used on fixtures in a room away from a wall or partition
Looped vent
A pipe connecting upward from a soil or waste stack to a vent stack for the purpose of preventing pressure changes in the stack
Yoke vent
A pipe, usually oversized, which functions both as a fixture branch and as a vent e.g. waste pipe that also serves as a vent
Wet vent
A vent pipe which leads from the drainage pipe to another vent pipe or to the atmosphere
Fixture vent
A vent connecting one or more individual vents with a vent stack or stack vent
Branch vent
