Samson 44-2, Mounting And Operating Instructions

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16 EB 2623-1 EN
Design and principle of operation
Table 3: K
VS
coefficients · X
FZ
values · Max. permissible differential pressure ∆p
Valve size DN 15 20 25 32 40 50
Max. permissible differential pressure ∆p 20 bar 12 bar
x
Fz
values 0.60 0.55 0.5 0.45
Body with screwed ends
K
VS
coefficients
Standard version 4.0 6.3 8.0 12.5 16.0 20.0
Special version 0.4 1) · 1.0 · 2.5 –
Flanged body
K
VS
coefficients Standard version – 12.5 20.0 25.0
1)
Special version of Type 44-2
Table 4: Dimensions · Weights
Valve size DN 15 20 25 32 40 50
Length L mm 65 70 75 100 110 130
Pipe Ød mm 21.3 26.9 33.7 42.4 48.3 60.3
Connection R G ¾ G 1 G 1¼ G 1¾ G 2 G 2½
Width across flats SW mm 30 36 46 59 65 82
Height H
Type 44-2 mm 230 250 380
Type 44-3 mm 285 1) 443
Type 44-9 mm 317
2)
475 488
Height H1 mm 34 43 45
Actuator housing ØD mm 116 160
Version with welding ends
Length L1
mm 210 234 244 268 294 330
Weight kg (approx.) 2.0 2.1 2.2 8.5 9.0 9.5
Version with threaded ends
Length L2 mm 129 144 159 192 206 228
Male thread A G ½ G ¾ G 1 G 1¼ G 1½ G 2
Weight kg (approx.) 2.0 2.1 2.2 8.5 9.0 9.5
Version with screwed-on flanges or with flanged body (DN 32 to 50 only)
Length L3 mm – 180 200 230
Weight kg (approx.) – 11.7 13.0 14.5
1)
310 mm with 6 to 10.5 bar set point range 2)
355 mm with 6 to 10.5 bar set point range