vent Flashcards
also called as the “Waste Waterline system”
, which primarily responsible in properly
disposing waste water towards its point of disposal i.e. septic tank, public sewer line.
-composed of three subsystems which are responsible in the over-all function of the
waste waterline system
Drain-Waste Vent System (DWV System)
TRUE OR FALSE
Vent pipes supply fresh air to each plumbing fixture in the house, which
helps the system move water through the drainage pipes each time a toilet is flushed ora sink is drained.
TRUE
This system of pipes and fixtures is primarily responsible in discharging grey waste water from sinks, lavatories, floor drains, etc.
Drainage System
This system of pipes and fixtures is primarily responsible in discharging black waste water from water closets.
Waste Collection System
This system of pipes and fixtures is primarily responsible in ensuring that
adequate air is circulated inside the waste waterline system and that enough pressure is generated to pull and push these waste-water towards its point of disposal i.e. septic tank, public sewer line.
Ventilation System
Receives the discharged waste material
DRAIN/FLOOR DRAIN
A fitting or device that provides a liquid seal which prevents the
backflow of foul air inside the building. It traps the air inside the
pipes.
TRAP
Any part of the piping system other than the
main, riser, or stack. These pipes are
connected to various fixtures which
discharges waste-water.
BRANCH PIPES/BRANCH LINE
A vertical main pipe of a system extending through one or more
stories and/or extended through the roof.
STACK
This type of pipe only conveys waste-water or liquid waste
free of any fecal matter
WASTE PIPE
This type of pipe conveys waste water which includes fecal
matter
SOIL PIPE
This type of pipe is used for ensuring the circulation of air and
relieving negative pressure exerted on trap seals in the system
VENT PIPE
are used to ensure the circulation of air in a
plumbing system and for relieving the negative
pressure exerted on trap seals.
Ventilation Pipes
This collects and discharges wastes from the adjacently connected soil pipes down to the soil pipes directly connected to the septic tank.
SOIL STACK
This is the backbone of the entire sanitary system.
MAIN SOIL AND WASTE VENT
This is also known as collecting line vent which serves as support to the main soil and waste vent. The principal artery of the venting system of which vent branches are connected.
MAIN VENT
A pipe installed to vent a fixture trap, that connects with the vent system above the fixture served or terminates in the open air.
INDIVIDUAL VENT OR BACK BENT
An arrangement of venting so installed that one vent pipe still serves
two traps.
UNIT VEBNT OR COMMON VENT OR DUAL VE NT
A vertical vent line that provides additional circulation of air between the drainage and vent systems.
RELIEF VENT
A pipe connecting
upward from a soil or
waste stack below the
floor and below horizontal
connection to an adjacent
vent stack at a point
above the floor and
higher than the highest
spill level of fixtures for
preventing pressure
changes in the stacks.
YOKE VENT OR BY-PASS VENT
A group vent pipe which starts in front of the
extreme (highest) fixture connection on a
horizontal branch and connects to the vent
stack.
CIRCUIT VENT
A vertical vent connection on a horizontal soil or
waste pipe branch at a point downstream of the last
fixture connection and turning to a horizontal line
above the highest overflow level of the highest
fixture connected there.
LOOPED VENT
The portion of a vent
pipe through which
waste water also
flows through.
WET VENT
A pipe used to
convey foul odors
from a fixture or
room.
LOCAL VENT
This is used for
basement or
underground
public restroom
wherein a vent
stack may not be
possible to extend
three meters above
the ground, as it
may constitute a
hazard and is
unsightly.
UTILITY VENT
A vent that does not carry liquid or water-borne wastes
DRY VENT
The extension of a soil or waste stack
above the highest horizontal drain
connected to the stack.
STACK VENT
The vertical vent pipe installed primarily for providing
circulation of air to and from any part of the soil, waste
of the drainage system. The uppermost end above the
roof has traditionally been referred to as Vent Stack
Through Roof (VSTR)
VENT STACK
in the pipes is a must in a piping system especially those
that are intended for waste water disposal.
Ventilation
TRUE OR FALSE
Based on the Revised National Plumbing Code of the Philippines,
ventilation is required for each trap such that each trap shall be
protected against siphonage and back-pressure through venting.
TRUE