Samson 3241-1-Gas, Монтаж и эксплуатация

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EB 8020-1 EN 25
Design and principle of operation
3.3.3 Technical data of version for valve class E
Table 8: Type 3241G Valve
Cast body: DN 15 to 150 · Forged body: DN 15 to 80
DIN DVGW test
mark
CE-0085AQ 0787 -0734 1)
Valve size DN 15 25 40 50 80 100 150 25 1)
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 60 80 63 100 160 160 160 260
10
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 54 72 57 90 144 144 144 234
–
Seat
diameter
mm
6 12 6 12 24 24 31 24 31 38 48 38 48 63 80 63 80 63 80 100 100 100 130
24
Perm.
diff./op.
pressure
bar 25 15 6 25 15 15 10 4 10 4 3 20
Rated
travel
mm 15 30 15
Rangeability 50 : 1 30 : 1 50 : 1
Perm. ambient
temperature
–40 to +60 °C
Perm. medium
temperature
–20 to +220 °C
Closing time <1 s
Valve class Valve class E · Valve group 2, class 2
Strainers Type 2 NI, special version for gas, 0.25 mm mesh size
1)
Test mark: CE‑0085AQ 0734 for special version with "fail‑open" fail‑safe action