API 570 Pc 3sep05 Daily Ptr 3

Professional Profession al Training and Consultation  API 570 Preparatory  3 – 8 Sep05, Al-Khobar, Saudi Arabia

Page 1 of 3

DAILY POINTS TO RECALL (DAY 3)

1.

CUI CUI is is mor more e lik likel ely y on on ins insul ulat ated ed pipi piping ngs s exp expos osed ed to water/mist/moisture and in the range of 25º to 250º.

2.

!ros !rosio ion n is is "aus "aused ed due due to to iimp mpa" a"ts ts of so soli lid d par parti ti"l "les es in li#uids/gases or li#uid parti"les in gases. gas es. It is more serious if "orrosion is also present.

$.

ati atigu gue e fai failu lure re is "a "aus used ed due due to to "y" "y"li li" " stre stress ss or or str stres ess s re% re%er ersal sals s &%i'rations( thermal "hanges).

*.

Cree Creep p fai failu lure re is depe depende ndent nt on time time(( tem tempe pera ratu ture re and and str stres ess. s.

5.

+he +he two two impo import rtan antt insp inspe" e"ti tion ons s "arr "arrie ied d out out per perio iodi di"al "ally ly on on pipi piping ng are, a. +hi"kness +hi"kness measurement measurement inspe"tion( inspe"tion( and '. !xter !xternal nal %isua %isuall inspe" inspe"tio tion n

-.

+hi" +hi"kn knes ess s mea measu sure reme ment nts s are are usua usuall lly y "ar "arri ried ed ou outt 'y, 'y, a. Ultrasoni" Ultrasoni" thi"kne thi"kness ss measuremen measurements ts for pipes pipes larger than  1 '. rofile rofile radiograph radiography y for pipes pipes  1 and smaller smaller

.

!xte !xtern rnal al %isu %isual al shall shall in"l in"lud ude e "he "he"k "klis listt for form m ppe ppend ndix ix 3 whi whi"h "h in%ol%es "he"king for leaks( misalignments( %i'rations %i' rations pipe support "onditions( external "orrosion( "ondition of insulation/"oating/painting.

4.

+6 +6 shal shalll 'e 'e sel sele" e"te ted d rep repre rese sent ntin ing g sus suspe pe"t "t area areas s and and shal shalll in"lude el'ows( tees( in7e"tion points and / interfa"e.

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Professional Training and Consultation  API 570 Preparatory  3 – 8 Sep05, Al-Khobar, Saudi Arabia

Page 2 of 3

DAILY POINTS TO RECALL (DAY 3) 8.

10.

In I 50( pipes are "lassified as follows, Class 1,

er%i"es with highest potential of resulting in emergen"y if the leak o""urs. i.e +he flamma'le fluids whi"h readily %aporise on leakage.

Class 2,

+hose pipes whi"h are not in"luded in Classes 1 and $

Class $,

er%i"es that do not signifi"antly %apori9e and not lo"ated in high a"ti%ity area.

Inspe"tion Inter%als, a.

+hi"kness measurements, 6ower of half the remaining life or i. 5 years for Class 1 ii. 10 years for Classes 2 and $ iii. $ years for in7e"tion points

'.

!xternal i. ii. iii.

%isual, 5 years for Classes 1 and 2 10 years for Class $ In7e"tion points and / interfa"e : 'y "lass

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Professional Training and Consultation  API 570 Preparatory  3 – 8 Sep05, Al-Khobar, Saudi Arabia

Page 3 of 3

DAILY POINTS TO RECALL (DAY 3) 11.

CUI inspe"tion shall 'e done 'y 3! or insulation remo%al on the following areas,

Class 1 2 $

Areas with Damaged Insulation 5 ; 50 ; 25 ;

Suspect Areas Within Susceptible Temperature 50 ; $$ ; 10 ;

12.

ipes systems ha%ing remaining life more than 10 years and are ade#uately prote"ted( need not 'e in"luded for inspe"tion of suspe"t area as a'o%e.

1$.

Inspe"tion of <, a.

< in ro"ess iping : s per other pro"ess piping

'.

< in e"ondary iping 1. 2.

or Class 1, ame as other Class 1 or Classes 2 and $, Inspe"tion is optional( .howe%er deadlegs shall 'e inspe"ted

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