English - IMI STAD Manual Del Usuario

English

STAD, MD 60, MD 61
Fig. 1. Valve closed.
Fig. 2. Opened 2.3 turns.
Fig. 3. Fully open valve.
Fig. 4. Recommended installation
Presetting
The presetting of a valve for a certain pressure drop (e.g.
corresponding to the presetting position 2.3) should be carried out as
follows:
1. Close the valve fully (Fig. 1).
2. Open the valve 2.3 turns (Fig. 2).
3. Using a 3 mm Allen key, turn the inner spindle clockwise to its end
position.
4. The valve is now preset.
A pressure drop diagram is available for each valve size, showing the
pressure drop curves for various settings and flows.
= Recommended direction of flow for best accuracy.
Draining
There is a recess for a 5 mm Allen key under the cover.
Turn 8-14 turns to drain.
Valves without draining can be equipped with a draining kit, article No.
52 179-990 (G1/2) or 52 179-996 (G3/4), provided that the valve
is prepared for draining. The draining kit can be installed during
operation.
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