Flowserve ZK210 Manuel d'utilisateur télécharger pdf (Page 8)

Explanatory Notes

(continued)

Function

(continued)

For differential pressures up to 180 bar a nozzle with more than three stages is used. A four-

stage nozzle is required for nominal size DN 25 and a five-stage nozzle is used for DN 50

and DN 80.

For corresponding k

values and valve lift specifications see data sheet ZK 210.

Setting slots

Direction of flow

Plug

Control edge

Orifices of sleeve

shown without sleeves

being shifted.

Valve seat

Protective sleeve

against wear

Control valve ZK 210 DN 50: 5-stage radial nozzle, ∆p

max

180 bar

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 16 17

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Flowserve ZK210 Manuel d'utilisateur Page 8