ML20116J522
| ML20116J522 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 08/06/1996 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML20116J490 | List: |
| References | |
| 2-FCV-63-25, GL-89-10, NUDOCS 9608130252 | |
| Download: ML20116J522 (2) | |
Text
~
MOV Calc No.
2-FCV-63-25 (GL 89-10)
Page l0F2
' ^
PRESSURE LOCKING EVAL.UAT10N FOR REQUIRED PULLOUT FORCE (for Double Disc Sollt Wedae)
,G '
'2 FCV-63-25),
Valve type =
1DD Spilt Wedgei jj= INPUTS ARK No?]300iB; VALVE DWG ( [93412859ll EPRI NP-6516 Calc Meth VALVE DESIGN DATA y :l0 40.4l theta (A) =l -
o0ldeg EPRI MOV PPP INTERNAL DEslGN INFO, Ref.
D1 E1 M1 a=
1.8438 inches ro=
0.625 inches dE[il.5333(5753~j$j^.55]
b=
0.625 inches v=
0.3 a=
((01 + E1) / 2) / 2 =
1.84375 b=
M1/ 2 =
0.625 = ro (D)
Mean Seat Dia (D1+E1)/2 =
3.6875 in v= Poisson's Ratio = Nd~31 e
(d)
Stem Dia =
enim1.625 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) =
OA000 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) =
, av sisw0 lbs D1. E1 PRESSURE and TEMPERATURE DATA
'ob)
Pbon =
PMna c2735l psi pmm2600 psi (Pu)
P up =
- D o s0 ps/
(Pd)
P down =
DP=
l 2600lpsid PRESSUE INDUCED. PRESSURE LOCKING THRUST REQUIREMENT:
THRUST = [ { (Pb - Pu) + (Pb - Pd) } * {S2} * {Vf} } - { (ST3) * (Pb) } + Pi ] + UNWEDGING WHERE:
Pb = Pressure in valve Bonnet UNWEDGING =
l?
M 0llbs Pu = Pressure upstream of Valve Pd = Pressure downstream of Valve S2 = Valve Seat Area Vf = Valve Friction Factor St3 = Stem Area PI = Packing load (maximum value)
THRUST =
8213lbs PRESSUREINDUCED. P L - MAXIMUM BONNET PRESSURE @ ACT/ VALVE LIMITING CAP PRESSURE = { A/VLIMTH + (S2
- Vf * (Pu + Pd)) - Pl } / { (2
- S2 *Vf)- St3 )
PRESSURE =
3991 psi
\\
9608130252 960806 t
Checked:
PDR ADOCK 05000327 P
MOV Calc No.
2-FCV-63-25 (GL 89-10)
Page Z 0F1 g,
PRESSURE LOCKING REQUIREMENT =
8213 lbs ACTUATORNALVE CAPABILITY EVALUATION CALCULATION:
- FC9-63-25'
~
l Actuator Model jSMB-0[
{"T"~515lfttbs Overall Gear Ratio (OGR)
~;87.2)
Pullout Efficiency (PE) e # ~'%
Application Factor (AF) 0.9 or 1.0 4
Valve Factor (VF) 1.0 or (VF/460)"2 a
367.5VAC Stem Factor (SF) 6!6{8)j Max Temperature (Temp) 215 F Loss Percentage (elevated temp)
[FIEff2T.*4]%
Note 1 1
Torque Loss Factor = 1-Loss %*(Temp-104)/(356-77) 0.9149 l
t Actuator Torque Capability = (MT
- OGR
- TLF " VF) 305.53 fttbs SF -
Actuator Thrust Capability = Torque / Stem Factor 16338lbs 0.0187
{.[S00,00jftibs
@06]Ibs Actuator Thrust / Torque Rating gg Valve Weak Link Thrust / Torque Rating EW@9870]Ibs SF =
932.57 filbs 0.0187 Seismic Thrust / Torque Rating Q$$6Dllbs SF =
628.32 filbs 0.0187 Nota 1:
Reference:
Limitorque Technical Update 93-03 RESULTS:
PRESSURE LOCKING RF.QUIREMENT =
8213 lbs ACTUATOR / VALVE LIMITING CAPABILITY =
16338 lbs 1 cut = MOTOR CAP COMMENTS:
emme Rev.
Prepared:
Checked:
-