ML20116J497
| ML20116J497 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 08/06/1996 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML20116J490 | List: |
| References | |
| EPM-RJP-022691, EPM-RJP-22691, NUDOCS 9608130241 | |
| Download: ML20116J497 (2) | |
Text
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4.
EPM-RJP-022691 Page Iof S MOV Calc No.
PRESSURE LOCKING EVALUATION FOR REQUIRED PULLOUT FORCE MOV
!f-FCV 63-156 Valve type =
Flee Wedge e -
j~~= INPUTS VALVE DWG 1885f 7-3 EPRI MOv PPP INTERNAL DEslGN INFO. Ref.
VALVE DESIGN DATA MARK No.
[8802AJ
__ D1 _
E1_
M1 E4.28125i L2.9375;..
- 2.5-a:
0.4 theta =
x5 deg a=
((D1 + E1) / 2)/ 2 =
1.804688 a=
1.8047 inches ro=
1.250 inches b=
M1/ 2 =
1.25 = ro T.3 b=
1.250 inches v=
0.3 v= Poisson's Ratio = P 0
u friction coefficient based on Calc method. & EPRI results PRESSURE and TEMPERATURE DATA theta =
1/2 total valve Pbon =
- s2235 psi disk angle.
- wn25 psi Phigh =
WBSED psl Plow =
25 psid
}
DP =
wmm0 F
Normal Temp =
wiu 10 F Max Temp =
O F Delta Temp =
Pbonnet = Pbon + (Delta Temp *33 psi /F) 2235 psi ROARK FORMULAS 0.041969 C2= (1/4)(1-(b/a)2[1+2in(a/b)]}
0.004014 C3= (b/4a)([(b/a)2+1]In(a/b)+(b/a)2-1}
0.817913 C8= (1/2)[1+v+(1-v)(b/a)2]
0.2284 C9= (b/a){[(1+v)/2]In(a/b)+[(1-v)/4][1-(b/a)2]}
0.000322 L11= (1/64)(1+4(ro/a)2-5(ro/a)4-4(ro/a)2[2+(ro/a)2]In(a/ro 0.039121 L17= (1/4)(1-((1-v)/4)[1-(ro/a)4]-(ro/a)2[1+(1+v)in(a/ro)]} Load Constant = (C2L17-C8L11)/(C2C9-C3C8) l 0.218712l SEAT REACTION LOAD (BONNET psi) 882.2 lb/in Reaction at Hub Perimeter = QH(Bonnet) = Pbonnet(a)(Load Constant) -438.2 lb/in Reaction at Seat: OS(Bonnet) = QH(Bonnet)(b/a)-(Pbonnet/2a)(a2-b2) SEAT REACTION LOAD (Disk Area DP) 9.86767 lb/in Reaction at Hub perimeter = QH(DiskDP) = (DP)(a)(Load Constant) -4.90133 lb/in l Reaction at Seat = QS(DiskDP) = OH(DiskDP)(b/a)-((DP)/2a(a2-b2)) SEAT REACTION LOAD (Hub Area DP) 25.49267 lb/in Force on Hub due to DP = Whub = QH(DPdisk)+(DP)PI(b^2))/2PI(b) -17.6573 lb/in Reaction at Seat = QS(HubDP) = (-Whub)(b/a) 889.114 lb/in Sum of Seat Reaction Loads = 2'QS(Bonnet)-QS(DiskDP)+QS(HubDP) 0.387951 VF = mu/(cosA + musinA) -3911.15 lbs Thrust Load = VF'(Sum Seat Reaction)*(Seat Circumference) 5531 lbs Unwedging Load (Static test) l -9442.15llbs TOTAL THRUST = Thrust Load + Unwedging Load = NOTE: THE NEGATIVE SIGN INDICATES THAT THE STEM IS IN TENSION l 9608130241 960806 PDR ADOCK 05000327 P PDR Rev. Prepared: Checked: / 8 s
t "MdV Ccic No. EPM-RJP-022691 Page ZoGk PRESSURE LOCKING REQUIREMENT = 9442lbs ACTUATORNALVE CAPABILITY EVALUATION CALCULATION: EPM-RJP-022691 ' Actuator Model [l~SMB-07 Motor Start Torque (MT) " '340 ftibs Overall Gear Ratio (OGR) 141.33 Pullout Efficiency (PE) t 240_% Application Factor (AF) 0.9 or 1.0 i* 105 Valve Factor (VF) 1.0 or (VF/460)"2
- , 2.1.0000 446.4VAC Stem Factor (SF)
[M0.0jji} Max Temperature (Temp) 215 F Loss Percentage (elevated temp) @@233]% Note 1 Torque Loss Factor = 1-Loss %*(Temp-104)/(356-77) 0.9069 Actuator Torque Capability = (MT
- OGR
- PE
- AF
- TLF
- VF) 539.75 fttbs SF =
Actuator Thrust Capability = Torque / Stem Factor 31564 lbs 0.0171 @{dd500 filbs f24000llbs Actuator Thrust / Torque Rating y Valve Weak Link Thrust / Torque Rating ((20200llbs SF = 345.42 ftibs 0.0171 Seismic Thrust / Torque Rating @[123000;lbs SF = 410.4 filbs 0.0171 Nots 1:
Reference:
Limitorque Technical Update 93-03 RESULTS: PRESSURE LOCKING REQUIREMENT = 9442 lbs ACTUATOR / VALVE LIMITING CAPABILITY = 20200 lbs COMMENTS: Rev. Prepared: Checked: e/ &w -}}