General Definitions on Piping System

Finally I can do this posting even the internet connection is very slow. And today I hope I can do the best I can do and Piping & Fabrication will start with General Definition from A to Z and all the definitions is connected with Piping Systems.

GENERAL DEFINITIONS

Absolute Viscosity

Absolute Viscosity

Absolute viscosity or the coefficient of absolute viscosity is a measure of the internal resistance. In the centimeter, gram, second (cgs) or metric system, the unit of absolute viscosity is the poise (abbreviated P), which is equal to 100 centipoise (cP). The English units used to measure or express viscosity are slugs per foot-second or pound force seconds per square foot. Sometimes,

the English units are also expressed as pound mass per foot-second or poundal seconds per square foot. Refer to Chap. B8 of this handbook.

Adhesive Joint

Adhesive Joint

A joint made in plastic piping by the use of an adhesive substance which forms a continuous bond between the mating surfaces without dissolving either one of them. Refer to Part D of this handbook.

Air-Hardened Steel

A steel that hardens during cooling in air from a temperature above its transformation range.

Alloy Steel

A steel which owes its distinctive properties to elements other than carbon. Steel is considered to be alloy steel when the maximum of the range given for the content of alloying elements exceeds one or more of the following limits:

Manganese      1.65 percent
Silicon             0.60 percent
Copper           0.60 percent

or a definite range or a definite minimum quantity of any of the following elements is specified or required within the limits of the recognized field of constructional alloy steels:

Aluminum                                     Nickel
Boron                                           Titanium
Chromium (up to 3.99 percent)     Tungsten
Cobalt                                          Vanadium
Columbium                                   Zirconium
Molybdenum

or any other alloying element added to obtain a desired alloying effect.

Small quantities of certain elements are unavoidably present in alloy steels. In many applications, these are not considered to be important and are not specified or required. When not specified or required, they should not exceed the following amounts:
Copper                            0.35 percent
Chromium                        0.20 percent
Nickel                              0.25 percent
Molybdenum                    0.06 percent

Ambient Temperature 

The temperature of the surrounding medium, usually used to refer to the temperature of the air in which a structure is situated or a device operates.

Anchor 

A rigid restraint providing substantially full fixation, permitting neither translatory nor rotational displacement of the pipe.

And I think that's all for now and in the next posting I will continue this General Definitions still from A to Z. I hope this will be useful.