Page 34 - Improving Machinery Reliability

Requirements Specificatiori 7

CENTRIFUGAL COMPRESSOR P A G E 3 OF b
DATA SHEET JOB NO. ITEM NO.
REVlSlON
CUSTOMARY UNITS CONSTRUCTION FEATURES DATE
I * RPM FPS TRIP RPM TYPE (OPEN. ENCLOSED, ETC.)
1
2 0 SPEEDS:
TYPE FABRICATION
MAX. CONT.
3
4
MATERIAL
RATE0 SPEED
MAX np SPEEDS:
MAX. YIELD STRENGTH (PSI)
FPS a MAX CONT. SPEEC
TERAL CRITICAL SPEEDS (DAMPED)
SMALLEST TIP INTERNAL WIDTH (IN, 1
FIRST CRITICAL
SECOND CRITICAL, RPM MODE BRINNEL HARDNESS: MAX- MIN.
MODE
MAX. MACH. NO. a IMPELLER EVE
RPM
e THIRD cRincAL RPM MODE MAX. IMPELLER HEAD a RATED sm (FT-LBsILB)-
10 FOURTH CRITICAL RPM MODE 0 SHAFT:
11 0 TRAIN LATERAL ANALYSIS REQUIRED (2.0.2.3) MATERIAL
12 0 UNOAMPEO STIFFNESS MAP REOUIREO (2.8.2.401 OIA @ IMPELLERS (IN)- OIA a COUPLING (IN.)-
13 0 TRAIN TORSIONAL ANALYSIS REQUIRED SHAFT END: TAPERED CYLINDRICAL
I4 (WRBINE ORNEN TRAIN) 12.0.4.6) MAX. YIELD STRENGTH (PSI)
15 0 TORSIONAL CRITICAL SPEEDS: SHAFT HARDNESS IBNH) (Re)
16 FIRST cRincAL RPM STRESS AT COURING (PSI)
17 SECOND CRITICAL RPM 0 BALANCE PISTON:
16 THlRO CRITICN RPM MATERIAL AREA (IN !
FOURTH CRITICAL RPM FIXATION METHOD
)VIBRATION: 0 SHAFT SLEEVES (2.8.2):
! ALLOWABLE TEST LEVEL. MILS AT INTERSTG. CLOSE MATL
CLEARANCE POINTS
(PEAK TO PEAK1 ATSHAFT SEALS MATL
23 0 ROTATION, VIEWED FROM DRIVEN END
24 0 MATERIALS INSPECTION REQUIREMENTS (4.2.3) 0 LABYRINTHS:
21 0 SPECIAL CHARPV TESTING 12.11.3) INTERSTAGE
2( 0 RADIOGRNWY REQUIRED FOR TYPE MATERIAL
21 0 MAGNETIC PARTICLE REOUIRED FOR BALANCE FiSTON
21 0 LIQUID PENETRANT REQUIRED FOR TYPE MATERIAL
2( 0 CASING: SHAFT SEALS:
3( MODEL 0 SEAL TYPE (2.8.3
31 CASING Sfti7 0 SETTLING OUT PRESSURE (PSIGJ
3; MATERIAL 0 SPECIAL OPERATtON (2.8.1)
3: THICKNESS (IN.) CORR. ALLOW. (IN.) 0 SUPREMENTAL DEVICE REOUIREO FOR CONTACT
3r MAX. WORIUNG PRESS PSlG SEALS (2.8.3.2) TYPE
3! MAX DESIGN PRESS PSI0 0 BUFFER GAS SYSTEM REQUIREO (2.8.71
24 TEST PRESS (PSIG): HELIUM HYDRO 0 TYPE BUFFER GAS
3i MAX. OPER. TEMP.OF MIN. OPER. TEMP.* 0 BUFFER QAS CONTROL SYSTEM SCHEMATIC BY VENDOR
31 MAX NO. OF IMPELLERS FOR CASING 0 PRESSURIZING GAS FOR SUBATMOSPHERIC SEALS 12.8.61
31 Mu(. CASING CAPACITY (ICFM) 0 TYPE SEAL
41 RADIOGRAPH QUALrTy 0 YES 0 NO ‘I 0 INNER OIL LEAKAGE GUAR. (GALfDAY/SEAL)
4 CASING SRlT SEALING )PBUFFER GAS REQUIRED FOR:
4; STEM RELIEF VALVE SET PT. (2.2.3) PSlG 0 AIR RUN-IN 0 OTHER
4 IAPHRAQMS: 0 BUFFER GAS FLOW (PER SEAL):
A
PSI
MATERIAL NORM:- LBSIMIN @ - P-
4! 0 IMPELLERS: MU(.:- LBSlMlN a __ PSI A P-
41 NO. DIAMETERS O BEARINQ HOUSINQ CONSTRUCTION:
4 NO, VANES EA. IMPELLER TYPE (SEPARATE. 1NTEGRAL)~SUlT
4 MATERIAL
I_
PAINTED IN U.S.A. DS-617-3 REV. 1.
Figure 1-3. API 617, data sheet page 3. (Courtesy American Petroleum Institute.)