ML20116J517
| ML20116J517 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 08/06/1996 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML20116J490 | List: |
| References | |
| 1-FCV-63-26, GL-89-10, NUDOCS 9608130250 | |
| Download: ML20116J517 (2) | |
Text
.
L
- MdV Calc No.
1-FCV-63-26 (GL 89-10)
PageIoF PRESSURE LOCKING EVALUATION FOR REQUIRED PULLOUT FORCE (for Double Disc Solit Wedae)
'; gy =INP'UTS MOV
!1.FCV-63 26 Valve type =
lOD' Spilt Wedge ARK nod 8B?
VALVE DWG ; [93-12859[
EPRINP-6516 Calc Meth VALVE DESIGN DATA y :l= w 0.4l theta (A) =l:
0ldeg EPRI MOV PPP INTERNAL DEslGN INFO, Ref.
D1 E1 M1 a=
1.8438 inches ro=
0.625 inches m2p.5[jj[2.'8752;l;.Jlg.25 b=
0.625 inches v=
0.3 a=
((D1 + E1)/ 2)/ 2 =
1,84375 b=
M1/ 2 =
0.625 = ro (D)
Mean Seat Dis (D1+E1)/2 =
3.6875 in v= Poisson's Ratio = EWbj l
'(d)
Stem Dia =
emp 1.625 in u: seating surfaces friction coef (S2)
Valve Seat Area ((D)^2*Pl/4=
10.68 (in)^2 based on Calc method. & EPRI results (Vf) mu/(cosA + musinA) =
0.4000 theta =
1/2 total valve (St3)
Stem Area ((d)^2*Pl/4=
l 2.07l(in)^2 disk angle (PI)
Packing Load (Calculated) =
1625 lbs Valve Seat Area Based on (PI)
Packing Load (Actual, average) =
c0 Ibs Di. E1 PRESSURE and TEMPERATURE DATA (Pb)
Pbon =
l;;
22735l psi 4
- g. a)
P up =
m 2600 psi (Pd)
P down =
v0 psi DP=
l 2600lpsid j
PRESSURE INDUCED, PRESSURE LOCKING THRUST REQUIREMENT:
THRUST = [ { (Pb - Pu) + (Pb - Pd) } * (S2} * (Vf} } - { (ST3) * (Pb) } + Pi ] + UNWEDGING WHERE:
Pb = Pressure in valve Bonnet UNWEDGING =
l' Oltbs Pu = Pressure upstream of Valve Pd = Pressure downstream of Valve S2 = Valve Seat Area Vf = Valve Friction Factor St3 = Stem Area Pl = Packing load (maximum value)
THRUST =
8213lbs PRESSURE INDUCED. P L - MAXIMUM BONNET PRESSURE @ ACTNALVE LIMITING CAP PRESSURE = { ANLIMTH + (S2
- Vf * (Pu + Pd)) - Pl } / { (2
- S2 *Vf)- St3 }
PRESSURE =
4009 psi Rev.
Prepared:
Checked:
[
9608130250 960806 r
PDR ADOCK 05000327 P
.i M V Calc No.
1-FCV-63-26 (GL 89-10)
Page 1of 1
' PRNSSURE LOCKING REQUIREMENT =
8213 lbs ACTUATOR / VALVE CAPABILTTY EVALUAT10N CALCULATION:
'1-FCV-63-26L Actuator Model F SMB-01 Motor Start Torque (MT)
"i 515;ftibs Overall Gear Ratio (OGR)
- p B7.2 i
Pullout Efficiency (PE) pfy fl40;%
Application Factor (AF) 0.9 or 1.0 gjhgij Valve Factor (VF) 1.0 or (VF/460)"2 j$p0.6428j 368.8VAC l
Stem Factor (SF)
EW D.0187)
Max Temperature (Temp) 215 F f
Loss Percentage (elevated temp)
Note 1 Torque Loss Factor = 1-Loss %*(Temp-104)/(356-77) 0.9149 1
Actuator Torque Capability = (MT
- OGR
- TLF
- VF) 307.68 filbs SF =
j hetuator Thrust Capability = Torque / Stem Factor 16453lbs' O.0187 1
Actuator Thrust / Torque Rating DISI53660'Ibs hSM 0}ftibs Valve Weak Link Thrust / Torque Rating
((@395"/0jlbs SF=
932.57 filbs 0.0187 i
Seismic Thrust / Torque Rating Q Q $ _0jlbs SF=
628.32 fttbs 0.0187 Note 1:
Reference:
Limitorque Technical Update 93-03 RESULTS:
PRESSURE LOCKING REQUIREMENT =
8213 lbs ACTUATOR / VALVE LIMITING CAPABILITY =
16453lbs 1 cut = MOTOR CAP COMMENTS:
Rev.
Prepared:
Checked: // g