Page 334 - Improving Machinery Reliability

Table 5-1 6
Annual Sustaining Costs For API Pump

API Pump: Margin I Pwer I
Lopisticri
'art Cost Cost US! Lost Gmu Elecbical Total cost
USS costtuss ussm
pr
inodent us0
EleCU~ty - - -
Seal 45 02222 8 100 5 178 S 7.111 E 7,967
Shaft 22 00455 10 100 t 45 s 1.818 S 2.175
Impeller 16 00625 8 100 5 50 5 2.m S 2.478
Housing 22 00455 14 100 s 64 t 2.545 s 2.998
PumpBeanngs 6 01667 8 100 t 133 s 483 s s 5,333 s 5.975
Motom 12 00833 8 100 S 67 5 250 s S 2.667 t 3.025
cwpllng 20 00500 a 100 5 40 60s t 1.600 S 1.715
Maintenarm PM nsits 12 50s 600 5600
Opsratms PM nslts 10 4 355 364 s364
Vibrallon Dept 10 4 50 s 520 t 520
Tt'allMlQ WSS 05 255 S 128 It 128
Total t 2,188 t 2486 S 216 I 23,076 IS 16,600 It 44.444 Motor size(hp)=
System failure rate= 0.6756 Good ~lUlnbMW mctk.:
System MTBF= 1.4801
1 yr reliability, R= 51%
1 yr unrslisbili. UR= 49%
1 yrAvaila3ility. A= 0,999