ELEMENTS OF PLUMBING Flashcards
is the art and technique of installing pipes, fixtures and other apparatuses in buildings for bringing in the supply, liquids substances and/or ingredients and removing them; and such water, liquid and other carried – wastes hazardous to health, sanitation, life, property, also the pipes and fixtures after installation i.e., the plumbing system. (Section 217.6 NPC 1999)
Plumbing
includes all potable water supply and distribution pipes, all plumbing fixtures and traps; all sanitary and storm drainage systems; vent pipes, roof drains, leaders and downspouts, and all building drains and sewers, including their respective joints and connections; devices, receptacles, and appurtenances within the property; water lines in the premises; potable, tap, hot and chilled water piping; potable water treating or using equipment; fuel gas piping; water heaters and vents for same. (Sec.217.12 NPC 1999)
Plumbing System
What are the major components of the Plumbing System?
- Water Supply & Distribution System
- Plumbing Fixtures
- Drainage, Waste & Vent
carries water from the water source, street main or a pump to the building & to various points of use.
Water Supply & Distribution System
The receptacles that receive the supplied water & allow the building occupants to avail & use the water
Plumbing Fixtures
The piping network within the building which conveys from the plumbing fixtures all wastes and rainwater to a treatment facility & point of disposal.
Drainage, Waste & Vent
is the one who works or engages in the business of installing in buildings the pipes, fixtures and other apparatus for bringing in the water supply and removing liquid and waterborne wastes.
Plumber
What are the different categories of Plumbers?
- Apprentice Plumber
- Journeyman Plumber
- Master Plumber
a beginner at the trade who usually serves for 3 to 5 years as a helper to a journeyman.
Apprentice Plumber
has served his apprenticeship and is competent to perform the tasks of installing and repairing the plumbing system.
Journeyman Plumber
a person technically and legally qualified and licensed to practice the profession of master plumbing without limitations in accordance with R.A. 1378, having passed the examinations conducted by the Professional Regulation Commission, has received a Certificate of Registration from the Board of Master Plumbing and possesses the current License to Practice. (Sec. 214.5 NPC 1999)
Master Plumber
is manifestation of the right of the government to regulate the practice of the plumbing profession based on the principle of the protection of public health.
Plumbing Code
There are ___ basic principles of the 1999 National Plumbing Code of the Philippines which are updates of the tenets in the “Plumbing Law of the Philippines” approved on 18 June 1955 as amended on 28 November 1959 and revised on 21 December 1999.
22
All premises intended for human habitation, occupancy or use shall be provided with a supply of pure and wholesome water, neither connected with unsafe supplies nor subject to hazards of backflow or back siphonage.
Principle No. 1
any connection or arrangement, physical or otherwise, between a potable water supply system and any plumbing fixture or tank, receptacle, equipment or device, through which enables non-potable, used, unclean, polluted, contaminated water or other substances to enter into any part of such potable water system under any condition.
CROSS-CONNECTION
the flow of water or other liquids, mixtures or substances into the distributing pipes of a potable supply of water from any source other than from its intended source.
BACKFLOW
the flowing back of used, contaminated or polluted water from a plumbing fixture or vessel into a water supply due to a negative pressure in such pipe.
BACK-SIPHONAGE
an unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet conveying potable water to the flood level rim of any tank, vat or fixture.
AIRGAP, WATER DISTRIBUTION
has an air inlet valve that closes when the water flows in the normal direction. But, as water ceases to flow the air inlet valve opens, thus interrupting the possible backsiphonage effect.
ATMOSPHERIC VACUUM BREAKER (AVB)
(DC)
DOUBLE CHECK VALVE BACKFLOW PREVENTION ASSEMBLY
has an air inlet valve which is designed to open when the internal pressure is 6.9 kPa (1 psi) above atmospheric pressure so that non-potable will not be siphoned back into the potable water system. It includes a check valve that is designed to close with the aid of a spring when flow stops.
PRESSURE VACUUM BREAKER BACKFLOW PREVENTION ASSEMBLY (PVB)
(RP)
REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTION ASSEMBLY
Plumbing fixtures, devices and appurtenances shall be supplied with water in sufficient volume & at a pressure adequate to enable them to function satisfactorily & without undue noise under normal conditions of use.
Principle No. 2
Inadequate Water Pressure – whenever the water pressure in the main or other source of supply will not provide a water pressure of at least ___ after allowing friction and other pressure losses, a hydro pneumatic pressure tank or an elevated tank and booster pump will provide 103 kPa pressure.
103 kPa (15 psi)
