FLUID POWER FORMULAS
FLUID POWER FORMULAS
= = WORD FORMULA: = IfiP= ====BY=A..SIC=? AFORMULAlSETTER FORMULA: B=WU~LEK.I3GF=2M!H!0kTO~E80IDfO,U'CF.LLOUNSxxEFOCE1FU0IfT0.BE.HIOCE- t FFOL-UO=_=ITDOf2PTF.VFROrPF.xl2!3O!H:ROlORPUO1.!22fxWElE.XRME9LU50T?'1NOA3SU8SCPI0.DCxSRDMS0URxESRRUTUEIxxTAEAU(AUARCTRfDTPMXSHTATIEIREISfCUPJ-EUlEOELO~IUU(A)M(CTS(pR(OPWSpnlG=fEPs>lSSUsdOEiRP)VATiEIsT)CHO_AMVFAElPfDS)W2M'-fO)lER(PR.ODRI"-EO5RPAVIIExfLxV)1nSERO.UxA0WNlIDREELRCE1OIc-O(xPAO,TWTVUAI3CTIRxR0hSOHnCTVNlILEU4AEF0eIMSEA.EcA!SIUOAIIEM.0s(OLCET,hT6UTlRPEGNFTTl)CMTLO\eYEEONHTRJOTAEIFU=sxCEWCAlMSOARKROaCEMGW)KMARPHLpEOEITFUETOR)CE1(ELpEEASNOAGUTSTA0RrRxCANoTCHPGRP0EVOIEIxIIVIUEFMNFCHI(EFF.(TPE)eIDFTSPA)FNC(YO.R1CIq,ULIC.CiE(u0uXlT)GGIYaIS.E2EERPrUS3NleNI1(fMAn1UGNC0C.VJlRIDP0YRnYIETMEceYtRv).x(e.p)sPs)R1im1)0E701S4SSUTUVGH/NlROlISlIEPITELTUCcc0A=FAE1PEVHOUAVU.S.S7IsSIllP,CATNRffAMUA1a"~IR_T,EM4=,6=ES.1AWT4p8UET2Hp7==TEv.AMEOA.6RIs1_~O(4C7rCHiG3ll4Nx[f12aR.A?2(5TOPA2?(2a8MASS?5Tl.21l"o13xpllOU_iOq,oE5rn9SrFOFVuno3S,PuRoAILoa=sE_trOSROoe)rPAPFS1eGo)'EUWNAF7UlaAE1II=SCpnR4RT_pcI(EAEO2Srh_N.o1T3/e7qIxfEDo1CEs8u.rV)1)SRaYO93Ir[IGe?VU4S(P.EATOP46IMpP\vnE/-p2cUrE:%rhrxToaDeUxs)i{0m)pPGRseaPirtMe1l}yJ000 psi
flEW PRESSURE (PSI)
RPMM
PH
J
f-;:i B HOURS OF BEARING LIFE = RATEDPLIUFEMHOPURFS Ox RRMATEUDLSPAEESD8('R0 PM=) xRAT(EDHRAAST.EDx PRPEMSS, URxE (PSI) J \ 3
. FORMULA FOR:
CYLINDER VELOCITY or SPEED In FeetJSerond CYLINDER VOLUME CAPACITY In Gallons of Fluid
CYlINDER flOW RATE In Gallons Per Minute flUID MOTOR TOROUE In Inch Pounds
FLUID POWER FORMULAS
ACTUATOR FORMULAS - CONTINUED WORD FORMULA
VELOCITY VOLUME
=
x 231 flOW RATE (GP!.1)
x x 12 60 IIET AREA (Square Inches)
r x = X RADiUS' (Inches) STROKE (Inches)
231
flOW R~TE
x = IIET AREA (Slrwe Inches) STROKE (Inches)
231
x x x _ 12 60 VELOCITY (FeevSec) NET AREA (Square InCl1es)
231
TOROUE
x = PRESSURE (psi) F.M. DISPLACEMENT (Cu. In.lRev.) 2r
= x HORSEPOWER 63025
RPM
LETTER FORMULA
y = 2310 ory = .32080
72M
A
v = rf' I 221
I v = ~ = Length 01 Slroke 231
o = 720vA or 0 = 3.117yA
231
T = 63025 HP n
flUID MOTOR TOROUE/100 psi In Inch Pounds
TOROUE/loo psi -
x x = FLOW RATE (GPM) PRESSURE (psi) 36.77
RPM
= F.M. DISPLACEMENT (Cu. Inches/RevotuDon)
.0628
T
= 36.770P or T = 36.770psi
n
n
TH,=nP
-- = 2T3n10 =-d6-.0360d285
FLUID MOTOR SPEED In RevoIulions/Minule
SPEED
_
231 flOW RATE (GPM)
- F.M. DISPLACEMENT (Cu. Inches/Revolution)
FLUID MOTOR POWER In Horsepower Output
HORSEPOWER
x = TORQUE OUTPUT (Inch Pounds) RPM
63025
THERMAL FORMULAS
NOTE: ONE BRITISH THERMAL UNIT (BTU) IS THE AMOUNT OF HEAT REOUIREDTO RAISE THE TEMPERATURE OF ONE POUND OF WATER OIlE OEGREEF.AHRENHBT.ONE HORSEPOWER= 2545 BTU/HR.
RESERVOIR COOUNG CAPACITY BASED ON ADEQUATE AIR CIRCULATION
HEAT (BTU/HR)
x = 2 TEMPERATURE OJFFERENCEBffi'/EEN RESERVOIRWAlLS AND AIR (oF) x AREA OF RESERVOIR(SO. Ft)
BTUIHR = 2.0 x AT x A
HEAT IN HYDRAULIC OIL (approx.)
= DUE TO SYSTEM INEFFICIENCY (SG
.89 -
.92)
I HEAT (BTU/HR)
= x x Fl(J.'I1WE (GPM) 210 TEMPERATURE DIFFERENCE(oF)
BTU/HR = 0 x 210 x AT
HEAT IN FRESH WATER (approx.)
tHEAT (BTU/HR)
x x = FLOW RATE (GPAt) 500 TEMPERATURE DIFFERENCE(OF)
BTU/HR = 0 x 500 x AT
NOTE: SEE PAGES 79 THROUGH 84 FOR INFORMATION
PRESSURE DROP FORMULAS
NOTE: SEE PAGES 130 AND 131 FORADDITIONAL INFORMATION
ACCUMULATOR? FORMULAS
+ Where UP" = psia(ABSOLUTf} = psig (GAUGE PRESSURE) 14.7 psi
FORMULA FOR:
PRESSURE OR VOLUME .
"r w/Constant
(Temperature)
PRESSURE OR TEMPERATURE w/ Constant "V" (Volume)
VOLUME OR TEMPERATURE w/Constant "P" (Pressure)
PRESSURE OR VOLUME w/Tempetalure Change Due
- ~~ To Heat of Compression U.S. .0.1.7201301602i.1.,710231041803069541063028.0.13058973043702719245608341563182514731536.824649275904313534273982661872417..26077249384 Liters
WORD FORMULA: x x ORlGIIIAL PRESSURE ORIGINAL VOLUME =. FIfIAL PRESSURE FINAL VOLUME
x . ORIGIIW: PRESSURE FIIJAi. m,IPERATURE ;; FlllAlPRESSURE X ORIG. TEMPERATURE
= ORIGII/AL VOLUME X AI/AL TEI,IPERATURE FINAL VOLUME x ORIGINAL TEMPERATURE
x = x ORIGINAL PRESSURE ORIGIIIAL VOLUME" ... FINAL PRESSURE FINAL VOLUME"
.> OFIRNIAGL. TTEEMMPP..
l'" ...i.;.,?;.?.?..O.FIRlIAIGL. VOLUMEF\j ",:,eOINRAISL. PPRREESSSSUURREE
VOLUME&CAPGaAr:uC.1SITY EQUIVALENTS
lETTER FORMULA: = P, V, P, V, lsothermic
P, T, = P, T, lsochoric
V, T, = V, T, Isobaric
Water at Max. Oensity 39.2? F 4? C
.0036065 6.23210 168.266
.220083 .833111 1 .0998281
~. -ra\ym.;s;-.
.0361275 62.4283 1685.56
2.20462 8.34545 10.0172 1
I
?of-Water
.0163872 28.3170 764.559 1 3.78543 4.54373
.453593
To Convert
. C3074tDIGGL126KMPF(.ImnC0i1.45a08,6gomeuaDatu047205tOeph.8,su4golll5602813Cs20ll4refct/rimoonr,.xsnes/i1806e285rm39.snpnd=/.qciene035ma17,.e62s9slhs0thyl29c/08e5146.i/em(s0enm5mCrt7235(sqgi0sU)ite19.Obinan.tl+ySlFselio3ni.r-u.n2.slsiq3u2i)d/)1.8
IKPUGLFmiiaoe.atlSeopsuellrg.,ecnVosradgnm/aimalsasmil//lni(slmnosPqg/niasnas)qllionnccmhsmeter
To Convert
LC027PBKGI346MUGI.,1mn10283i.,07134oagau.t,aaue307528t6Se2p3urs7.81o0lltl048369sllr215ee.cfi0t/cmoon.50snesi481523m706.rarpnndg/c.qeis8m.731al5924ss3lahs/4Vtylm417//e98235l/ei(ms1lnmPro40(siq2sUgnin5aie7bnna.s)tySlefliton.r.n.lisquid)
TABLE 6-E. CONVERSION BETWEEN ENGLISH UNITS AND SI UNITS
The "SI" (International Standards) units shown below are adopted for use by the International Fluid Power Community, and should be used on documents prepared for international circulation.
Quantity
SI Unit for Fluid Power
"Customary" U.S. Unit
Length . Pressure* Pressure** Flow*** Flowt Force Mass . Time ... Volume*.**.
Temperature Torque . Power
Shaft Speed Frequency . Displacement Kinematic viscosity Velocity.
millimeter (mm) . bar (bar, g or bar, a) . mm of mercury (mm Hg) liters per minute (I/min) cubic decimeters/see (dm3/sec) Newton (N) kilogram (Kg) second (see) liter (I) .
degrees Celcius (oC) Newton-meters (Nm) kilowat (kw)
revolutions per minute (rpm) Hertz (Hz) . millileters/revolution (ml/rev) centistokes (cSt) . meter per second (m/s)
inch (in). Ibs/sq in (psig or psia) . inches of mercury (in Hg) U.S. gallons per minute (U.S. GPM) . cubic feet per minute (cfm) pound(f) or Ib(f) (force) . pound(m) or Ib(m) (mass). second (see)
gallon (U.S. gal) . degrees Fahrenheit (0 F) pounds(f)-inches Ibs(f)-in horsepower (HP) . revolutions per minute (rpm) cycles per second (cps) . cubic inches per revolution (cipr). Saybolt Universal Seconds (SUS) feet per second (fps) .
NOTES: *Pressure above atmospheric
**Pressure below atmospheric tt@38?C; Factor is 4.667 @ 99?C
***Liquid
Conversion Factor
1 in = 25.4 mm 1 bar = 14.5 psi 1 in Hg = 25.4 mm Hg 1 U.S. GPM = 3.79 I/min 1 dm3 /sec = 2.12 cfm 1 Ib(f) - 4.44N 1 Kg = 2.20 Ib(m)
1 U.S. gal = 3.791
?C = 5/9 (OF - 32)
1 Nm = 8.88 Ib(f)-in 1 kw = 1.34 HP
1 Hz = 1 cps ?lml/rev = 0.061 cipr cSt = (4.635)(SUS)tt 1 m/s = 3.28 fps
tGas
EQUIVALENT MEASUREMENTS
1 U.S. Ga lion
231 Cu bic Inches 4 Quarts; or 8 Pints 8.3356 Pounds 3.785 Liters
1 Imperial Gallon = 1.2 U.S. Gallons 1 Liter = 0.2642 U.S. Gallons
1 Cubic Foot = 7.48 Gallons = 1728 Cubic Inches
1 Cubic Foot of Water Weighs 62.4 Pounds
1 Bar at Sea Level = 14.5 PSI (Approx.l Atmos.) 33.8 Foot Water Column 42 Foot Oil Column II 29.92 Hg.
Approx. VzPSI Decrease Each 1000 Ft. Altitude
1 Horsepower
= 33,000 Ft. Lbs. per Minute 550 Ft. Lbs. per Second 42.4 BTU per Minute 2545 BTU per Hour 746 Watts, or 0.746 Kilowatts
lPSI= 2.04161'Hg 27.71 "Water
Foot Column of Water
= 0.433 PSI
Foot Column of Oil = 0.390 PSI
1 "Hg = 0.491 PSI = 1.132 Ft. Water
1 Barrel Oil = 42 Gallons
1 Micro-meter = 1 Millionth of a Meter (Micron) = 1 Thousandth of a Meter = 0.00004 Inch
25 Micro-meters = 0.001 Inch
APPROXIMATE MEASUREMENTS
1 Pint = 2 cups = 16 fluid ounces = 1 pound 1 Pint = 96 teaspoons = 32 tablespoons = 16 fluid ounces 1 Quart = 4 cups = 2 pints = 32 fluid ounces = 2 pounds 1 Quart = 192 teaspoons = 64 tablespoons = 32 fl. oz. 1 Gallon = 16 cups = 4 quarts = 8 pints 1 Gallon = 768 teaspoons = 256 tablespoons = 128 oz.
1 Gallon = 231 cubic inches = 76,800 drops 1 Cup = 16 tablespoons = 48 teaspoons 1 Tablespoon = 3 teaspoons 2 Tablespoons = 1 fluid ounce 1 Fluid ounce (volume) = 600 drops (hydraulic oil) 1 Cubic inch = 330 drops
TABLE 6-F. EQUIVALENT VALUES
To convert units appearing in Column 1 into equivalent values of units in Column 2, multiply by factor in Column 3, Example: To convert 7 gallons into cubic inches, multiply 7 x 231 = 1617 cubic inches.
To convert units appearing in Column 2 into equivalent values of units in Column 1, divide by factor in Column 3. Example: To convert 25 horsepower into BTU per minute, divide 25 by 0.02356 = 1061 BTU per minute.
.
Column 313.9
SC?AMW0BH4PIUCP278R5lIUF01235HII0CWPPlH7QOMinne.5inn082So.t635aeTuot40.o3Soitce520ca841om.0S3Suucc8lne0hoI,dlbl4Ci2a0r8o75hUt3uhr81W0o6IlCe3490rAPGFDulchhTSGOCP.0anrPIFQtseHtuis2.30oC715esnG.96e7mo5204(ns8613rteaecmG0oS57643ceqe2oud(emta.rls1sau839oce.tsd,2l50on.px16c4ssml308beuoa912mpunIl4saulyb7l.nhetb42-asu8bf4hr.hloe371sFpInlt250(til1394s.moa0iehloksrocei14.nSpimsr(o.e.ecwol8.370264eerdo851twW0emo.fsnpln.csoeidftrnf1e(b385snl627p.rst(enfa.Mh3serbFWftC8sHIeepM2Us06.a984orWetahMroH1sneps+tlW.ueSIt3eFW472wrtioeeu(s.fceenuert3SonUMqea.rrul3iherrecar2upiesdtgaJuMre.cr).S(peqerihtelcs.ei)trSchMmeBnuseunqre{reotr.q)rriusa.)Mre.i(.ynd.lySrct(Mt.i.SdeMseIo.BqruPqiIn).eorCF(nuPrnH.*a(s)ic"ny)i"nH).rHod).IHsu.n)-gtg*.dJe)3).. 2
Please read instructions above
TABLE 6-G. PSI GAUGE PRESSURE CONVERTED TO METRIC PRESSURE UNITS
This table is calculated on the basis of 1 bar = 14.5 PSI, or, 1 PSI = .069 bar
PSI
? 10
50
100
250
500
750
1000
1500
Bars
??....0..69
3.45
6.90
17.2
34.5
51.7
69.0
103.4
2000 137.9
2500 172.4
3000 206.9
5000 344.8
TABLE 6-H. GPM OIL FLOW CONVERTED TO METRIC UNITS
This table is calculated on the basis of 1 U.S. GPM = 3.79 liters per min. (liquid) or, 1 liter per min. = 0.2638 GPM.
GPM
.5
Liters/min~18.95
8 30.32
12 45.48
15 56.85
20 75.80
25 94.75
30 113.7
35 132.7
40 151.6
50 189.5
75 284.3
100 379.0
TABLE 6-1. SCFM AIR FLOW CONVERTED TO METRIC UNITS
This table is calculated on the basis of 1 SCFM = 0.4716 cubic decimeters per second, or 1 dm3/sec. = 2.12 SCFM.
SCFM
~5
Dm3/sec~2.358
10 4.716
15 7.074
25 11.79
50 23.58
75 35.37
100 47.16
150 70.74
200 94.32
250 117.9
300 141.5
350 165.1
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- emc formulas
- chapter 2 thermoelectric generators western michigan university
- determining electric motor load and efficiency energy
- watts renewable energy terms i e
- power conversion efficiency measurement methods application note eeweb
- understanding the wind power equation solidwize
- watts vars and va
- ergometry university of new mexico
- field intensity and power density tscm
- the power equation college of engineering
Related searches
- osha bodily fluid cleanup procedures
- bodily fluid clean up procedure
- cross fluid power
- osha bodily fluid policy
- osha body fluid cleanup guidelines
- body fluid clean up policy
- cross fluid power raleigh nc
- cross fluid power company
- cross fluid power greensboro nc
- cross fluid power charlotte nc
- electrical power formulas pdf
- high power dc power supplies