Samson 3351 - Page 22

3-8 EB 8039 EN
Design and principle of operation
Table3-7: Dimensions for Type3351
Valve
DN 15 20 25 32 40 50 65 80 100
NPS ½ ¾ 1 – 1½ 2 2½ 3 4
Length L
PN16/40,
angeB,B1
mm 130 150 160 180 200 230 290 310 350
Class125,FF
Class150,RF
in 7.25 – 8.75 10 10.88 11.75 13.86
mm 184 – 222 254 276 298 352
Class300,RF
in 7.50 7.62 7.75 – 9.25 10.50 11.50 12.50 14.50
mm 190 194 197 – 235 267 292 318 368
Diaphragm ØD mm 150 240 280 390
Controlpressure
connection
a G¼ G¼
DN65and80:G¼
DN100:G
3
/
8
Standard version
H1 mm 260 285 328 485
H2 mm 45 72 98 118
H3
1)
mm 380 380 415 565
1)
Minimumclearancetoremovetheactuator;versionwithhandwheel:uptoDN80:+150mm,DN100:+210mm
Table3-8: Weights for Type3351
Standard version
DN 15 20 25 32 40 50 65 80 100
NPS ½ ¾ 1 – 1½ 2 2½ 3 4
Weight, approx.
kg
PN16,25and
40
11 12 12 25 26 29 48 52 70
Class125/150 11 12 13 – 23 27 47 52 64
Class300 12 13 14 – 25 29 50 55 64