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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 orice 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 orice.

The table shows the opening and closing times

depending on the equalising orice 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 dierential pressure, may

inuence the values.

Open Close Open Close Open Close Open Close Open Close Open Close

grooves

Orice

Number of grooves

Danfoss EV210B User Manual

Questions and Answers: