ICPS600A402_1_oms - page 26

24
IC.PS.600.A4.02 / 520B2809
[s]
[mm]
EV220B 15 EV220B 20 EV220B 25 EV220B 32 EV220B 40 EV220B 50
0.5 1 0.04 0.35 0.04 1.0 0.11 3.0 1.6 6.0 1.3 8.0 3.4 40.0
0.8 2 0.04 0.3 0.04 0.5 0.3 1.0 1.0 2.5 1.5 4.0 3.6 11.0
1.2 3 0.04 0.12 0.04 0.25 0.30 0.5 1.2 1.0 1.5 2.0 5.0 10.0
1.4 4 0.04 0.1 0.06 0.18 0.30 0.4 1.0 0.8 2.0 1.5 5.2 6.5
Opening and closing times
Changing opening and
closing times
Please note for high performance type.
EV220B 15-50 closing times can be changed by
replacing the equalising orifice at the inlet side
of the valve (see “Water hammer", page 15, and
“Spare parts”, page 34). To decrease water hammer,
choose a smaller equalising orifice.
The table shows the opening and closing times
depending on the equalising orifice chosen
(standard times marked in bold). The times stated
cover water as a medium, and are for guidance
only. Tube dimensions / lengths and operating
conditions, for example differential pressure, may
influence the values.
Open Close Open Close Open Close Open Close Open Close Open Close
grooves
1
Orifice
1
Number of grooves
1...,16,17,18,19,20,21,22,23,24,25 27,28,29,30,31,32,33,34,35,36,...44
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