Samson 3251, Mounting And Operating Instructions

Page: 18 / 60

18 EB 8052 EN
Design and principle of operation
Dimensions and weights
Table 1 to Table 3 provide a summary of the dimensions and weights of the standard version
of Type 3251 Valve. The lengths and heights in the dimensional drawings are shown on
p. 19.
Table 1: Dimensions of Type 3251 Valve, up to NPS 6
Valve
NPS ½ 1 1½ 2 3 4 6
DN 15 25 40 50 80 100 150
Length L
(flanges RF
and
welding
ends)
Class 150
in 7.25 7.25 8.75 10.00 11.75 13.88 17.75
mm 184 184 222 254 298 352 451
Class 300
in 7.50 7.75 9.25 10.50 12.50 14.50 18.62
mm 190 197 235 267 318 368 473
Class 600
in 8.00 8.25 9.88 11.25 13.25 15.50 20.00
mm 203 210 251 286 337 394 508
Class 900
in 8.50 10.00 12.00 14.50 15.00 18.00 24.00
mm 216 254 305 368 381 457 610
Class
1500
in 8.50 10.00 12.00 14.50 18.50 21.50 27.75
mm 216 254 305 368 470 546 705
Class
2500
in 10.38 12.12 15.12 17.75 22.75 26.50 36.00
mm 264 308 384 451 578 673 914
Height H4
Class 150
to 600
in 5.98 5.98 6.46 8.54 8.74 9.53 12.36
mm 152 152 164 217 222 242 314
Class 900
in 7.32 7.32 7.68 9.88 8.74 9.53 12.36
mm 186 186 195 251 222 242 314
Class
1500 to
2500
in 7.32 7.32 7.68 9.88 11.34 13.7 18.35
mm 186 186 195 251 288 348 466
H8 for
actuator
350 cm²
in 9.45 9.45 9.45 9.45 9.45 9.45
–
mm 240 240 240 240 240 240
355 cm²
in 9.45 9.45 9.45 9.45 9.45 9.45 16.46
mm 240 240 240 240 240 240 418
700 cm²
in 9.45 9.45 9.45 9.45 9.45 9.45 16.46
mm 240 240 240 240 240 240 418
750 cm²
in 9.45 9.45 9.45 9.45 9.45 9.45 16.46
mm 240 240 240 240 240 240 418