دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the pressure at which a manufacturer has determined that a pipe or vessel will burst from internal pressure.

the actual minimum burst pressure derated by a safety factor. The derated burst is used as a maximum when pumping.

n: The chart for illustrating different steel grade, wall thickness, quality, hardness and safety factor of casing in designing casing string.

the collapse pressure derated by a safety factor. Takes into account the effects of axial load. The formulas are only good for round pipe.

n: the ratio of the ultimate load a vessel or structure will sustain to the permissibly safe load placed on it. Such safety factors are incorporated into the design of casing, for example, to allow for unusual burst, tension, or collapse stresses.

n: see safety factor of wire rope.

the derating factor applied to a pressure test limit or weight limit to set a maximum operating load condition.

n: a measurement of load safety for wire rope obtained by using the following formula: Factor of safety = B/W where- B = nominal catalog breaking strength of the wire rope, and W = calculated total static load. Also called design factor of wire rope.

n: The ratio of the dead weight to the breaking strength of the wire rope .

n: The ratio of tension strength of casing to the maximum stress that it can be resisted.

n: the working pressure of a container or vessel times a safety factor. See also working pressure.