Text

Pressure Locking Evaluation for Required Pullout Force
	ML20116J536
Person / Time
Site:	Sequoyah
Issue date:	08/06/1996
From:	; TENNESSEE VALLEY AUTHORITY
To:	;
Shared Package
ML20116J490	List: ML20116J488; ML20116J497; ML20116J502; ML20116J505; ML20116J509; ML20116J515; ML20116J517; ML20116J522; ML20116J525; ML20116J536; ML20116J539; ML20116J541; ML20116J544;
References
	EPM-RJP-041091, EPM-RJP-41091, NUDOCS 9608130256
	Download: ML20116J536 (3)
	v • d • e

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MOV Ca'c No. EPM-RJP-041091 Page lof 3 ERESSURE LOCKING EVALUATION FOR REQUIRED PULLOUT FORCE

,s i*% INPUTS

~

MOV 11-FCV-68-332 Valve type = : Flex Wedge '

VALVE DWG f 88405-2 EPRI MOV PPP INTERNAL DEslGN INFO. Ref.

VALVE DESIGN DATA MARK No. [8000A D1. .

E1_ _ M1 2.937 : 2.1B7' ? '0312 y .:. r 0.4 theta = , a e5 deg a= ((D1 + E1) / 2) / 2 = 1.281 a= 1.2810 inches ro= 0.406 inches b= M1/ 2 = 0.406 = ro b= 0.406 inches v= 0.3 v= Poisson's Ratio =

7 .3 0 u: friction coefficient l PRESSURE and TEMPERATURE DATA based on Calc method. & EPRI results theta = 1/2 total valve Pbon = , a2250 psi disk angle _

Phigh = ewws0 psi Plow = MMMO psi Dp = 0 psid Normal Temp = m + w0 F Max Temp = em m0 F Delta Temp = ,

O F

-Pbonnet = Pbon + (Delta Temp *33 psi /F) 2250 psi ROARK FORMULAS C2= (1/4)(1-(b/a)2[1+2in(a/b)]} 0.167176 C3= (b/4a)([(b/a)2+1]In(a/b)+(b/a)2-1} 0.028914 C8= (1/2)[1+v+(1-v)(b/a)2] 0.685158 C9= (b/a){[(1+v)/2]In(a/b)+[(1-v)/4][1-(b/a)2]} 0.286608 L11= (1/64)(1+4(ro/a)2-5(ro/a)4-4(rola)2[2+(rola)2]In(a/ro)) 0.005962 0.144066 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) 1 0.711633l SEAT REACTION LOAD (BONNET psi) .

Reaction at Hub Perimeter = QH(Bonnet) = Pbonnet(a)(Load Constant) 2051.1 lb/in

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

SEAT REACTION LOAD (Disk Area DP)

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

SEAT REACTION LOAD (Hub Area DP) 0 lb/in Force on Hub due to DP = Whub = QH(DPdisk)+(DP)PI(b^2))/2Pl(b) 0 lb/in Reaction at Seat = QS(HubDP) = (-Whub)(b/a)

-1292.57 lb/in Sum of Seat Reaction Loads = 2*QS(Bonnet)-QS(DiskDP)+QS(HubDP) 0.387951 VF = mu/(cosA + musinA)

-4035.97 lbs Thrust Load = VF*(Sum Seat Reaction)*(Seat Circumference)

-5024 lbs Unwsdging Load (Static test)

TOTAL THRUST = Thrust Load + Unwedging Load = l -9060llbs NOTE: THE NEGATIVE SIGN INDICATES THAT THE STEM IS IN TENSION 9608130256 960806 PDR ADDCK 05000327 P PDR Rev. Prepared: Checked: %

. MOV Calc No. EPM-RJP-041091 Page 200 ERESSURE LOCKING EVALUATION FOR REOUIRED PULLOUT FORCE

. 1. " . '~h INPUTS MOV 4-FCV-68-332 / Valve type = (FleEWedge '

. VALVE DWG ;88405-2 EPRI MOV PPP INTERNAL DEslGN INFO, Ref.

VALVE DESIGN DATA MARK No. 8000A_ _ _D_1_ _ _ _ E1

_ M1 2.937I f2.18f 70312 y- i O.4 theta = e5 deg a= ((01 + E1) / 2) / 2 = .1.281 a= 1.2810 inches ro= 0.406 inches b= M1/ 2 = 0.406 = ro b= 0.406 inches v= 0.3 v= Poisson's Ratio = f? ' 70.3 u: fnction coefficient l

\ PRESSURE and TEMPERATURE DATA based on Calc method. & EPRI results theta = 1/2 total valve Pbon = x m 2235 psi disk angle Phigh = mmK300 psi Plow = WWmMO psi l DP= 300 psid Normal Temp = awsmo F Max Temp = "so F Delta Temp = 0 F Pbonnet = Pbon + (Delta Temp *33 psi /F) 2235 psi ROARK FORMULAS C2= (1/4)(1-(b/a)2[1+2in(a/b)]} 0.167176 C3= (b/4a)([(b/a)2+1]In(a/b)+(b/a)2-1} 0.028914 C8= (1/2)[1+v+(1-v)(b/a)2] 0.685158 C9= (b/a)([(1+v)/2]In(a/b)+[(1-v)/4][1-(b/a)2]} 0.286608 L11= (1/64)(1+4(ro/a)2-5(rola)4-4(rola)2[2+(rola)2]In(a/ro 0.005962 L17= (1/4)(1-((1-v)/4)[1-(rola)4]-(ro/a)2[1+(1+v)ln(a/ro)]} 0.144066 Load Constant = (C2L17-C8L11)/(C2C9-C3C8) [0.711633l SEAT REACTION LOAD (BONNET psi) Reaction at Hub Perimeter = OH(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 = OH(DiskDP) = (DP)(a)(Load Constant) 273.4806 lb/in Reaction at Seat = QS(DiskDP) = QH(DiskDP)(b/a)-((DP)/2a(a2-b2)) -86.1714 lb/in SEAT REACTION LOAD (Hub Area DP) Force on Hub due to DP = Whub = QH(DPdisk)+(DP)PI(b^2))/2PI(b) 334.3806 lb/in

                                                                                                                -105.979 lb/in Reaction at Seat = QS(HubDP) = (-Whub)(b/a)
                                                                                                                -1303.76 lb/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)

Unwedging Load (Static test) --5024 lbs TOTAL THRUST = Thrust Load + Unwedging Load = l -9095llbs NOTE: THE NEGATIVE SIGN INDICATES THAT THE STEM IS IN TENSION i Rev. Prepared: Checked: -

 . MOV Calc No.                                      EPM-RJP-041091                                       Page 3or 3

1- ,

                 . PRESSURE LOCKING REQUIREMENT =                       9095 lbs

!% ~ ACTUATORNALVE CAPABILITY EVALUATION CALCULATION: IEPM-RJP-041091"- Actuator Model f[SMBh003 Motor Start Torque (MT) ["7755'filbs Overall Gear Ratio (OGR) f39 Pullout Efficiency (PE) ff;@;; FA $40 %

                                                                                                       ,                      l Application Factor (AF)               0.9 or 1.0                         $52]jdQ1]

Valve Factor (VF) 1.0 or (VF/460)7 0.7820; 406.9VAC Stem Factor (SF) gj Max Temperature (Temp) 327 F Loss Percentage (elevated temp) NIS T$% Note 1 Torque Loss Factor = 1-Loss %*(Temp-104)/(356-77) 0.8146 Actuator Torque Capability = (MT

OGR
PE
AF
TLF
VF) 312.13 filbs SF =

                , Actuator Thrust Capability = Torque / Stem Factor                              20008lbs              0.0156 Actuator Thrust TTorque Rating                                            ~3;<19600'Ibs

[F ?250.00ifties i l Valve Weak Link Thrust / Torque Rating %dQibs228.54 filbs SF = 0.0156 Seismic Thrust / Torque Rating E$j{$@lbs r SF = 335.40 filbs 0.0156 Note 1:

Reference:

Limitorque Technical Update 93-03 RESULTS: PRESSURE LOCKING REQUIREMENT = 9095 lbs j ACTUATOR / VALVE LIMITING CAPABILITY = 14650 lbs ! COMMENTS: l O g

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ML20116J536

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