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Glossary

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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #




A
Adaptor:
A fitting that unites different types of pipe together, e.g. ABS to cast iron pipe.


B

C
Co-extrusion:
Method of manufacturing that combines various plastic polymers to produce a range of colors, clarities and modifications, such as flame retardance, impact strength and weatherability.


Copolymer:
A product, manufactured through co-extrusion, which features combined properties of various polymers.

Coupling:
A fitting that joins two pieces of pipe.

CPVC (Chlorinated Polyvinyl Chloride):
Rigid plastic pipe used in water supply systems, where code permits.


D
DWV:
Abbreviation for drain, waste and vent.

E
E-Flex:
a brand of Kabelwerk Eupen AG

Elbow:
A pipe fitting with two openings that changes the direction of the line. Also called an ell. It comes in a variety of angles, from 22 1/2 to 90.

Eucadrain:
a brand of Kabelwerk Eupen AG

Eucalene:
a brand of Kabelwerk Eupen AG

Eucaprotect:
a brand of Kabelwerk Eupen AG

Eucaresist:
a brand of Kabelwerk Eupen AG

Eucarigid:
a brand of Kabelwerk Eupen AG

Eucavolt:
a brand of Kabelwerk Eupen AG

Extrusion:
One of the basic methods of shaping molten plastic resins. Likened to squeezing toothpaste, extrusion involves solid resins melting as a screw pushes them through a heating chamber. The opening through which the resins are forced gives the product its form, resulting in consistent thickness and gauge control.


F
Fall/Flow:
The proper slope or pitch of a pipe for adequate drainage.
 
Fixture:
In plumbing, the devices that provide a supply of water and/or its disposal, e.g. sinks, tubs, toilets.
 

G


H


I

I.D.:
Abbreviation for inside diameter. All pipes are sized according to their inside diameter.


J

K

L



M

N


O
O.D.:
Abbreviation for outside diameter.

P

Plastic:
Material, usually polymers developed from the by-products of oil refining and coal distillation, which, though stable in normal use, changes its shape when pressure or heat (or both) is applied. If the materials soften again when reheated, they are said to be thermoplastic. If, after fashioning, they resist further applications of heat, they are said to be thermoset.

Polymer:
A high-molecular-weight organic compound, natural or synthetic, whose structure can be represented by a repeated small unit, the monomer (e.g., polyethylene, rubber, cellulose). Synthetic polymers are formed by addition of condensation polymerization of monomers. If two or more different monomers are involved, a copolymer is obtained. Some polymers are elastomers, some plastics.

Protec:
a brand of Kabelwerk Eupen AG

PVC:
An acronym for polyvinyl chloride, PVC is a thermoplastic that is strong and especially resistant to water, acids and abrasion.



Q

R
Reducer:
A fitting that connects pipes of different sizes.
 
Riser:
A vertical assembly of fittings and pipes that distributes water upward.
 

S

Sanitary Fitting:
Fitting that joins the assorted pipes in a drain, waste and vent system; designed to allow solid material to pass through without clogging.
 
Soil Stack:
Largest vertical drain line to which all branch waste lines connect; carries waste to the sewer line.
 
Stop Valve:
A valve that controls the flow of water to an individual fixture, allowing water supply to be stopped to one fixture without affecting the water supply to other fixtures.

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T
Tee:
A T-shaped fitting with three openings used to create branch lines.

Thermoforming:
Any process of forming thermoplastic sheet which consists of heating the sheet and forcing it into a surface mold. Also known as pan forming.

Thermoplastic:
Widely used materials, such as ABS, acrylic, polycarbonate and PVC, which can be melted again and again. They melt when heated to a certain temperature, but harden again as they cool.



U
Union:
Three-piece fitting that joins two sections of pipe, but allows them to be disconnected without cutting the pipe. Used primarily with steel pipes, but never in a DWV system.


V
Vent Stack:
The upper portion of the soil stack above the topmost fixture through which gases and odors escape.

W
WYE:
A Y-shaped fitting with three openings used to create branch lines


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Revision: 07022012_1141
 
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