Yoke Venting Flashcards
Number of stories the upper vertical section of a stack needs passed through in order to require an offset relief event is
More than two stories
How many fixtures are permitted to be discharged into an offset relief vent or yoke vent
2
When a fixture is connected to a yoke vent or offset relief vent the minimum size of the pipe acting as a wet vent is
1 1/2”
What is the maximum fixture unit load on individual fixtures that may be connecting to an offset relief vent or yoke vent?
1 1/2 fixture units
Connecting more than one fixture to an offset relief, and the piping arrangement must be in the form of
A dual vent
The maximum fixture load that made discharge into an offset relief vent or yoke vent is
Three fixture units
Yoke vents are required when
The stack receives discharge from more than 11 stories
When yolk vents are required, they are located…
Every five stories or part there of counted from the top down
The Yoke vent is sized to
One size smaller than the smallest pipe to which it is connected
The yolk vent is connected to the vent stack
1000 mm above finished floor
The lower end of a yoke vent is connected to the soil or…
Above the highest connected fixture to the lower section of the soil or waist stack, and at the same elevation of the highest connected fixture to lower section of the soil or waist stack
Or each story of the soil or waist is interconnected to the vent by means of vent pipe equalize to the branch or fixture drain or 2 inch in size; a Yoke vent is not required
True
Soil stack to receive discharge from 18 stores with a total load of 205 fixture; how many yoke vents are required and what would be the size vent. The length of the vent stack is 50 m.
3 @ 2”
