SPX FLOW S280 M-14, Руководство пользователя, Страница: 7 / 93

ENGINEER: Greg Eckard
DATE:
CALC NO.:
1000816-821 ASME REV NO.: 00
UNPORTED SLAB THICKNESS
The head and follower covers are designed as noncircular flat plates attached with bolts causing an
edge moment. The thickness of the covers without openings is determined in accordance with UG-34 -
UNSTAYED FLAT HEADS AND COVERS.
SLAB MATERIAL: SA-516 GR 70
Sop = 20000 psi @ 150 F
CA = 0.000 inches Corrosion Allowance
E = 1 Joint Efficiency (no welded joints)
THICKNESS "T1" REQUIRED AT OPERATING CONDITIONS
T1 = d*SQR[((Z*C*P/(Sop*E))+((6*W*Hg)/(Sop*E*L*d*d))] UG-34 Formula 5
Z = MINIMUM OF: 3.4-(2.4*d/D) OR 2.5 UG-34 Formula 4
W = Wm1 = A*P+2*b*G*m*P Appendix 2-5 Formula 3
Z = 2.331
W = 924408.384 lbf
MINIMUM REQUIRED UNPORTED THICKNESS, INCLUDING CA T1 = 3.970 inches
THICKNESS "T2" REQUIRED DUE TO GASKET SEATING
T2 = d*SQR[((Z*C*P/(Sgs*E))+((6*Wgs*Hg)/(Sgs*E*L*d*d))]
P = 0 psig at gasket seating conditions
Wgs = ((Am+Ab)*Sa)/2
Appendix 2 - 5 Formula 4
Am = GREATER OF: Am1 = Wm1/Sb OR Am2 = Wm2/Sa (From page 2)
Am = 36.976 sq in
Sgs = 20000 psi
Wgs = 1033051.250 lbf
MINIMUM REQUIRED UNPORTED THICKNESS, INCLUDING CA T2 = 1.438 inches
MINIMUM REQUIRED UNPORTED THICKNESS, INCLUDING CA, @ OPERATING OR GASKET
SEATING CONDITIONS
T = GREATER OF: T1 OR T2
T = 3.970 inches
03-Feb-11
3 of 5
Kemper County MM218132 Approved