A valve used to manually shut gas off.
(American Institute of Architects) This is basically a self policing regulating body that promotes excellence in architecture. They are heavily involved in all facets of education for their members from internship, to mentoring to licensing and support. A.I.A. is also the preferred method by which sub contractors invoice their customers. Chances are if you’ve been a subcontractor for awhile you know exactly what G701, G702 and a G703 form is for. If you are familiar with all of the AIA forms are you probably have a head ache, they can be tedious but they are ultimately there to protect the Owner.
Generally, in the plumbing industry (it is used a lot in the auto industry because it is so durable) this is black colored plastic pipe and fittings used in drainage, sewer, waste and vents. ABS (Acrylonitrile Butadiene Styrene) pipe/fittings and also PVC (see below) plastics have replaced much of the cast iron, lead and steel pipes formerly used for DWV. Important note is that no solvent cement (and primer) can totally “glue” (solvent weld) ABS to PVC plastic. Under normal conditions, quality ABS (when virgin resins are used) will not crack, chip or peel.
A material that is used to hold gases, liquids or solids or suspended solids on it’s surface or inside pores. The most common absorbent used in the plumbing world is activated carbon.
This is a seeping field designed to disperse the liquid waste from a septic tank through a filter bed. The septic tank fills with liquid and solid waste and the liquid waste drains off to the absorption field leaving the solid waste behind.
A covered opening in wall made near a plumbing or electrical fixture to allow access for maintenance. In plumbing an access panel would hide control or shut off valves or cleaouts for rodding plumbing fixtures.
An approach to designing buildings, homes and products that renders them easier to access and use by people with physical, sensory, or cognitive disabilities.
Increases the concentration of hydrogen ions when dissolved in water. Acid dissolves common metals.
Acid Dilution Basin
A plumbing appurtenance connected to waste piping servicing a part of a building receiving corrosive or acid waste. Most acid neutralizing basins use limestone as the neutralizing media. Here are some applications where an acid dilution should be used, school labs, hospitals, research facilities, pharmaceutical manufacturing, printing facilities, automotive service centers, film processing, etc.
Any waste water containing corrosives or acidic liquids that must be neutralized before entering the municipal sewer system. Most often fixtures receiving acid waste are connected to an acid dilution basin which neutralizes acid before the waste water enters the sewer.
Acid Waste Piping
Simply put its waste piping and fittings that are resistant to acid waste. Examples of applications where this is used, laboratories, hospitals, photo labs and printing presses. Some of the materials used in making acid resistant pipe and fittings; glass, polypropylene and polyvinylidene fluoride for really harsh situations. Polyvinylidene fluoride is also fire retardant and when approved can be used in a plenum ceiling.
The measurement of acid concentration in water.
A very strong and hard thermoplastic and in plumbing it is used as a surface material for bathtubs, shower bases, tub or shower surrounds. When used in bathtubs and showers acrylic is usually back with fiberglass to add strength and rigidity. Acrylic is also used to make plexiglass shower doors.
(Americans with Disabilities Act) This term is very important as it relates to plumbing. It affects the height that water closets can be mounted, the types of handles you can install on a lavatory faucet, how much pressure it takes to push down a flush valve handle and those are just a few. Here is a link to the 2010 ADA Standards publication www.ada.gov/regs2010/2010ADAStandards/2010ADAStandards.pdf
A device which is fully compliant, when properly installed, with the current requirements of the Americans with Disabilities Act Accessibility Guidelines (ADAAG), as legislated by the Americans with Disabilities Act of 1990.
A fitting that joins two different types of pipes together. Or/Also a fitting that joins threaded with none threaded pipe (as in: female adaptor or male adaptor, PVC to cast iron pipe).
An adjustable rod or strap that forms the connection between the lift rod and the ball lever assembly of the drain.
a method to introduce air with water to help in releasing dissolved gasses that contribute to foul odors or unpleasant taste. Aeration can be done in several different ways, air can be bubbled up through the liquid, liquid can be sprayed into the air or the liquid can be agitated oxygenating it by bringing the surface water in to contact with the air. The best example we can give for the use and effects of aeration is the cleansing of the Calumet Sag River in Illinois. Large parks where created along the Calumet Sag River pumping millions of gallons of water through attractively created waterfalls. The results have been staggering.
A device that adds air into flowing water from the end of a faucet to reduce splashing.
a type of fitting installed on a plumbing fixture that mixes water with air. These fittings help with water conservation and reduce splashing.
Bacteria living, active and occurring in the presence of oxygen.
Imprinted on many gas valves and appliances. It is the American Gas Association rating.
Air Admittance Valve
A mechanical one way valve used in place of traditional non mechanical (very reliable) vents. It is to allow air to enter waste piping and equalizing pressures. Vents are used to preserve the seal of trap in plumbing fixtures. Also known as auto trap vents.
A vertical air filled pipe or manufactured spring coil installed above the waterline in a potable water system that absorbs pressure fluctuations when valves are turned off i.e. a shower is turned off or a fill valve in a toilet slams shut. The pressure absorbing devices reduce water hammer. Having air chambers on plumbing fixtures with water connections is code for most municipalities.
The unobstructed physical distance between the outlet end of a plumbing apparatus or piping delivering potable water to a plumbing fixture to the flood rim level of the receptacle (sink, dishwasher, clothes washer or tank) Think of a kitchen sink faucet with a pullout spray if you pulled it out and laid it in the sink you would have no air gap. The air gap protects the potable water system from cross contamination. Please see Backflow Prevention Device, Vacuum breaker, double detector check valves.
Air inversion pipe lining is used in waste, vent, storm and water main to repair broken piping due to ground settling, pipe deterioration, tree roots etc. It is most commonly used in pipe sizing from 4″ to 48″ in diameter. The piping is prepared by video camera inspection, then
An air bubble in the line that blocks the flow of liquid on the suction side of the pump.
A separation between the waste receptor and the fixture, appliance, or device that is indirectly connected.
The measurement of a water supply’s ability to neutralize acids.
All Thread Rod
a connecting rod used in almost every construction trade. In the mechanical trades it is mostly used to hang piping materials from the underside of a the structure of the building.. Threads are in one direction and standard hex nuts can easily be screwed on to secure a multitude of different hangers. Come in a variety of sizes and finishes. Most common sizes in the piping trades are 1/4″, 3/8″,1/2″, 5/8 & 3/4″ it’s most common finishes are black and galvanized, stainless steel is also a common material.
The average temperature of the air surrounding an appliance.
Americans with Disabilities Act (ADA)
A federal law, passed in 1990, which prohibits discrimination against people with disabilities. The term “disability” means a physical or mental impairment that substantially limits one or more of the major life activities of such individuals. Among the provisions in the law are requirements that impact plumbing products in the design of accessible bathrooms and facilities.
A patented process from American Standard that uses a porcelain surface, an enameling grade steel material and a structural composite backing bonded together to create a sink that is similar to cast iron in durability, heat retention and sound deadening but weighs considerably less therefore it is cheaper to install.
is very similar to the double detector check in that it houses two testable check valves. It has two gate valves one (1) on the inlet and one (1) on the outlet. Here is where things change, an RPZ is used in high hazard situations, where contamination of the water supply would pose a significant health hazard.RPZ (reduced pressure zone backflow preventer) and Double Detector Check Valve
Bacteria that lives and grows in the absence of free oxygen. These bacteria get their oxygen by decomposing substances that contain oxygen.
An “emergency” stop (valve) that is usually installed before the water supply line (below) to toilets and faucets. Angle stops are to be shut off in case of an emergency or repair and are generally not designed for daily on and off usage. The difference between a “straight stop” and an “angle stops” is that the “angle” stop changes direction by 90 degrees while a straight stop is like most valves and does not change direction