For forces and moments are following shall apply:
FL = α x 2.0 x D [kN]
FA = α x 2.0 x D [kN]
FC = α x 1.5 x D [kN]
MT = αx 0.15 x D2 [kNm]
ML = α x 0.13 x D2 [kNm]
MC= α x 0.10 x D2 [kNm]
Where α value is,
0.75 for flange ratings 150# and 300#
1.25 for flange rating 600#
1.5 for flange rating 900#
2.0 for flange rating 1500# and 2500#
D = nom. Nozzle size in inch

Is this right way to calculate vessel, shell & tube heat exchanger allowable force & moments for ASME VIII Div.1 or Div.2 ?