MUHAMMAD ATSIIL DHAIFULLAH
2210943036 MUZAKKI GUSRON EFENDI
2210942013 TIARA RINELVA
2210942046
TABLE OF
CONTENTS EXPLANATION OF VENT SYSTEM
DESIGN CRITERIA OF THE VENT SYSTEM
CONCLUSION
EXPLANATION OF
VENT SYSTEM
DEFINITION
Vent Pipe
1. A pipe in the plumbing system designed to carry gases produced from decomposition in the drainage system.
Helps prevent the buildup of pressure and unpleasant odors.
Vent System
2. A part of the plumbing system that:
Regulates air circulation throughout the drainage system.
Prevents siphon action, which could empty water traps and allow odors to escape.
Prevents back pressure that might disrupt the flow in the drainage
system.
OBJECTIVES OF A VENT SYSTEM
The vent pipe, together with traps, is an essential part of a drainage system. The main objectives of installing vent pipes are:
To protect trap seals from being affected by siphoning or pressure imbalances.
1.
To maintain smooth circulation within the drainage pipes.
2.
To ensure proper air circulation within the drainage system
3.
TYPES OF VENT SYSTEMS AND PIPES
Single Vent: Serves one fixture.
1. Loop Vent: Loops back to the main vent, for nearby fixtures.
2. Stack Vent: Vertical vent for a drainage stack.
3. Common Vent: Shared by two or more fixtures.
4. Wet Vent: Acts as both a vent and drain.
5. Relief Vent: Relieves pressure or suction.
6. 7. Back Vent: Prevents trap siphoning.
Yoke Vent: Balances pressure in tall buildings
8.
TYPES OF VENT SYSTEMS AND PIPES
TYPES OF VENT SYSTEMS AND PIPES
TYPES OF VENT SYSTEMS AND PIPES
TYPES OF VENT SYSTEMS AND PIPES
TYPES OF VENT SYSTEMS AND PIPES
TYPES OF VENT SYSTEMS AND PIPES
TYPES OF VENT SYSTEMS AND PIPES
Design
Criteria
GENERAL
Purpose:
To balance air pressure within the drainage system, prevent trap water seal loss, and allow the safe expulsion of sewer gases.
Material:
Vents must be made from materials resistant to corrosion, heat, and gases, similar to drainpipes.
Airflow Capacity:
The vent must provide sufficient airflow to equalize pressure in the system
during wastewater discharge.
PLACEMENT OF VENT PIPES
a) Ventilation (vent) must be installed in every room where plumbing fixtures are placed to ensure adequate air circulation, in accordance with applicable regulations, except for drinking water fountains and single handwashing sinks.
b) Toilets, urinals, bathtubs, bathing water tanks, and showers must be equipped with direct ventilation connected to the outdoors to maintain air quality. If this is not
feasible, a mechanical ventilation system must be installed to exhaust air from the room to the outside.
c) Plumbing fixtures with indirect waste disposal can be placed in rooms with good
ventilation, as long as their use does not cause disturbances. These plumbing fixtures must not be located in enclosed, unventilated spaces, such as storage rooms or
warehouses.
FIXTURES UNIT & MAX LENGTH
MAX DISTANCE FROM TRAP TO VENT
Minimum Height Above Flood Level Rim:
The vent terminal must be at least 15 cm above the flood level of the connected fixture.
Above Roof Level:
Vents must terminate at least 30 cm above the roof surface to prevent obstruction and gas reentry
VENT SIZES
Vent Diameter:
The vent pipe must have a diameter no less than 50% of the connected drainpipe but no smaller than 32 mm.
Main Vent:
The main stack vent must have the same diameter as the drainage stack it serves.
REGULATION BASED
SNI 03-6572-2001: This standard outlines the procedures for designing ventilation and air conditioning systems in buildings.
Key requirements include:
Opening Area: The minimum opening for ventilation should be at least 5% of the room's total area for residential buildings, while commercial spaces may require up to 10%
Cross Ventilation: For effective cross ventilation, openings should comprise about 20% of the room's floor area, facilitating organized airflow
REGULATION BASED
Law Number 28/2002: This law mandates that all buildings must have adequate ventilation systems to ensure proper air circulation.
Key points include:
Natural Ventilation: Buildings intended for residential, healthcare, and educational purposes must incorporate natural ventilation through
openings
Health Requirements: The law emphasizes that ventilation systems must not only provide air circulation but also contribute to overall health and safety standards in building desig
Conclusion
A vent system is essential for managing pressure, ensuring safety, and minimizing environmental impacts in industrial operations. It prevents overpressure or vacuum conditions, protects equipment
and personnel from hazards, and complies with environmental
regulations by controlling emissions. Effective vent system design involves proper sizing, material selection, emission treatment, and
adherence to standards, ensuring operational reliability and
sustainability. Regular monitoring and maintenance further enhance its performance, making it a critical component for safety and
environmental stewardship.
THANK
YOU
