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