EB 8020-1 EN
23
Design and principle of operation
3.3.2 Technical data of version for valve class D
Table 5:
Type 3241G Valve
Cast body: DN 15 to 150 · Forged body: DN 15 to 80
DIN DVGW test mark
CE-0085CQ0516
Valve size
DN
15
25
40
50
80
100
150
Pressure rating
PN
40
K
VS
coefficient (without
flow divider ST 1)
0.4 1.6 0.4 1.6 6.3 6.3 16 6.3 16
25
40
25
40 60
80
63 100 160 160 260
0.63
2.5
0.63
2.5
10 10
–
10
–
–
–
–
–
–
–
–
–
–
–
–
1.0 4.0 1.0 4.0
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
K
VS
I (with flow divider
ST 1)
–
–
–
–
–
–
–
–
– 22
36
22
36 54 72 57 90 144 144 234
Seat diameter
mm 6 12 6 12 24 24 31 24 31 38 48 38 48 63
80
63
80
100 100 130
Permissible
differential/
operating
pressure
bar
20
15
10
5
Rated travel
mm
15
30
Rangeability
50 : 1
30 : 1
Perm.
ambient temperature
–40 to +60 °C
Permissible medium
temperature
–20 to +220 °C
Closing time
<5 s
1)
Valve class
Valve class D
Strainer
Type 2 NI, special version for gas, 0.25 mm mesh size
1)
Closing time <1 s when fitted with correspondingly sized pilot valves (possibly in combination with a quick exhaust
valve)
Table 6:
Types 3271 and 3277 Pneumatic Actuators
Actuator area in cm²
175
355
750
Signal pressure
range
bar
0.8…2.4
1.7…3.3
2.35…2.95
1.6
…
2.4
1.65…2.65
Required
supply pressure bar
2.7
3.6
3.25 3.3 3.25 3.3 3.25
2.7 3
2.95
Max. supply
pressure
bar
6
6
6
Closing force
kN
1.4
3
8.34 8.3 8.34 8.3 8.34
12
12.4
Fail‑safe position
Fail‑close
Summary of Contents for 3241-1-Gas
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