ML20116J541

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Pressure Locking Evaluation for Required Pullout Force
ML20116J541
Person / Time
Site: Sequoyah  Tennessee Valley Authority icon.png
Issue date: 08/06/1996
From:
TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML20116J490 List:
References
2-FCV-68-332, GL-89-10, NUDOCS 9608130258
Download: ML20116J541 (3)
v • d • e


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. MOV Calc No. 2 FCV-68-332 (GL 89-10) Page /DF3 ERE.99URE LOCKING EVALUATION FOR REOU.' RED PULLOUT FORCE l Valve type =

, l^ ~ % k(NPUTS MOV 2-FCV-68-332 ;: iFliEWecGo :

- VALVE DWG E :88405-2 EPRI MOV PPP INTERNAL DEstGN INFO, Ref.  !

VALVE DESIGN DATA MARK No. ;8000A!L' 01 E1 M1 .

l 7 gg ^732MIE[0)W v= t 0.4 theta = -5 deg a= ((01 + E1)/ 2)/ 2 = 1.281 a= 1.2810 inches ro= 0.406 inches b= M1/ 2 = 0.*'9 = ro b= 0.406 inches v= 0.3 v= Poisson's Ratio = PE~TO.3' u = fnction coefficient PRESSURE and TEMPERATURE DATA based on Calc method. & EPRI results theta = 1/2 total va've Pbon = n2250 psi disk angle Phigh = ww eO psi Plow =

eegno psi DP = 0 psid Normal Temp + aO F Max Temp = < e %0 F Delta Temp = ,

O F

' Pbonnet = Pbon + (Delta Temp *33 psi /F) 2250 psi ROARK FORMULAS 0.167176 C2= (1/4)(1-(b/a)2[1+2in(a/b)]}

0.028914 C3= (b/4a)([(b/a)2+1]In(a/b)+(b/a)2-1}

0.685158 C8= (1/2)[1+v+(1-v)(b/a)2]

0.286608 C9= (b/a)([(1+v)/2]In(a/b)+[(1-v)/4][1-(b/a)2])

0.005962 L11= (1/64)(1+4(rola)2-5(ro/a)4-4(rola)2[2+(rola)2]In(a/ro)) I 0.144066 L17= (1/4)(1-((1-v)/4)[1-(ro/a)4]-(rola)2[1+(1+v)ln(a/ro)])

Load Constant = (C2L17-C8L11)/(C2C9-C3C8) l 0.711633l I

SEAT REACTION LOAD (BONNET psi) 2051.1 !b/in Reaction at Hub Perimeter = QH(Bonnet) = Pbonnet(a)(Load Constant)

-646.3 lb/iri Reaction at Seat: QS(Bonnet) = QH(Bonnet)(b/a)-(Pbonnet/2a)(a2-b2)

SEAT REACTION LOAD (Disk Area DP) 0 lb/in Reaction at Hub perimeter = QH(DiskDP) = (DP)(a)(Load Constant) 0 lb/in Reaction at Seat = QS(DiskDP) = OH(DiskDP)(b/a)-((DP)/2a(a2-b2))

SEAT REACTION LOAD (Hub Area DP) ,

0 lb/in l Force on Hub due to DP = Whub = OH(DPdisk)+(DP)PI(b^2))/2PI(b) )

0 lb/in Reaction at Seat = QS(HubDP) = (-Whub)(b/a) l

-1292.57 lb/in Sum of Seat Reaction Loads = 2*QS(Bonnet)-QS(DiskDP)+QS(HubDP) 0.38795 VF = mu/(cosA + musinA) -4035.97 lbs Thrust Load = VF*(Sum Seat Reaction)*(Seat Circumference) -5228 lbs I Unwsdging Load (Static test) _

i 1 TOTAL THRUST = Thrust Load + Unwedging Load = l -9264llbs 4

NOTE: THE NEGATTVE SIGN INDICATES THAT THE STEM IS IN TENSION

. 9608130258 960006 PDR ADOCK 05000327 P PDR Rev. 7 ' Prepared: Checked: /

4 e

- MOV Calc No. 2 FCV-68-332 (GL 89-10) Page 2eF3 m.

. McPc'JRE LOCKING EVALUATION FOR REQUIRED PULLOUT FORCE

"^6 & lNPUTS MOV '2-FCV 68-332 l Valve type =  ? Flex Wedge ~

VALVE DWG 188405-2i EPRI MOV PPP INTERNAL DEslGN INFO. Ref.

VALVE DESIGN DATA MARK No. 8000A D1 E1 M1

^~^2.937P"j2jg{ ~^50$812j v= r 0.4 theta = :5 deg a= ((D1 + E1) / 2) / 2 = 1.281

, 0.406 a= 1.2810 inches ro= inches b= M1/ 2 = 0.406 = ro b= 0.406 inches v= 0.3l v= Poisson's Ratio = "7 0 .3' u = fnction coefficient PRESSURE and TEMPERATURE DATA based on Calc method. & EPRI resu\ts theta = 1/2 total valve Pbon = m e2235 psi disk angle Phigh = aam300 pst Plow = immo psf DP= 300 psid Normal Temp = reewe0 F Max Temp = ' %S0 F Delta Temp = , O F

'Pbonnet = Pbon + (Delta Temp *33 psi /F) 2235 psi ROARK FORMULAS 0.167176 C2= (1/4)(1-(b/a)2[1+21n(a/b)]}

0.028914 C3= (b/4a)([(b/a)2+1]In(a/b)+(b/a)2-1) 0.685158 C8= (1/2)[1+v+(1-v)(b/a)2]

0.286608 C9= (b/a)([(1+v)/2]In(a/b)+[(1-v)/4][1-(b/a)2])

L11= (1/64)(1+4(rola)2-5(rola)4-4(rola)2[2+(ro/a)2]In(a/ro)) 0.005962 0.144066 L17= (1/4)(1-((1-v)/4)[1-(rola)4]-(ro/a)2[1+(1+v)ln(a/ro)]}

Load Constant = (C2L17-C8L11)/(C2C9-C3C8) [0.711633l SEAT REACTION LOAD (BONNET psi)

Reaction at Hub Perimeter = QH(Bonnet) = Pbonnet(a)(Load Constant) 2037.4 lb/in Reaction at Seat: QS(Bonnet) = QH(Bonnet)(b/a)-(Pbonnet/2a)(a2-b2) -642.0 lb/in SEAT REACTION LOAD (Disk Area DP)

Reaction at Hub perimeter = QH(DiskDP) = (DP)(a)(Load Constant) 273.4806 lb/in

-86.1714 lb/in Reaction at Seat = QS(DiskDP) = QH(DiskDP)(b/a)-((DP)/2a(a2-b2))

SEAT REACTION LOAD (Hub Area DP)

Force on Hub due to DP = Whub = OH(DPdisk)+(DP)PI(b^2))/2PI(b) 334.333 lblin

-105.979, Ib/in Reaction at Seat = QS(HubDP) = (-Whub)(b/a)

-1303.76 I)/in Sum of Seat Reaction Loads = 2*QS(Bonnet)-QS(DiskDP)+QS(HubDP) 0.387951 VF = mu/(cosA + musinA) -4070.91 lbs Thrust Load = VF*(Sum Seat Reaction)*(Seat Circumference)

-5228 lbs Unwsdging Load (Static test)

TOTAL THRUST = Thrust Load + Unwedging Load = l -9299llbs NOTE: THE NEGATIVE SIGN INDICATES THAT THE STEM IS IN TENSION

3 Page 3ep3 l MOV Calc No. 2-FCV-68-332 (GL 89-10) l l

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. PRESSURE LOCKING REQUIREMENT = 9264 lbs  ;

^

CALCULATION: 2-FCV-66-332 "

ACTUATOR / VALVE CAPABILITY EVALUATION CSMB-003-Actuator Model  ;

Motor Start Torque (MT) "" j25 ftibs Overall Gear Ratio (0GR)  % $9 Pullout Efficiency (f E) g , f40. %

Application Factor ( AF) 0.9 or 1.0 ;f.:pf. [1 li30.7702 403.7VAC Valve Factor (VF) 1.0 or (VF/460)"2 (0.,0]56)

, Stem Factor (SF) 327 F Max Temperature (Temp)

Loss Percentage (elevated temp) PMfi3% Note 1 )

J 0.8146 Torque Loss Factor = 1-Loss %*(Temp-104)/(356-77) 307.42 filbs SF = l Actuator Torque Capability = (MT

  • OGR
  • TLF
  • VF) 19706 lbs 0.0156 l

. Actuator Thrust Capability = Torque / Stem Factor l Actuator Thrust / Torque Rating  %[i'9600'Ibs l

(([25Q00,filbs SF =

Valve Weak Link Thrust / Torque Rating (([]M50llbs 228.54 filbs 0.0156 Seismic Thrust / Torque Rating ((jYiS0(Ibs SF =

335.40 ft!bs 0.0156 l

j Nots 1: Refer nce: Limitorque Technical Update 93-03 l

PRESSURE LOCKING REQUIREMENT =

9264 lbs RESULTS:

ACTUATOR / VALVE LIMITING CAPABILITY = 14650lbs COMMENTS:

m b

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