83003702.K Operating Instruction
Type KPC 108-L-U/S
page 111
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12.20
Flow control valve
HYDRONICS
STAD 25: Balancing, pre-setting, measuring, shut-off, draining
Pressure class:
PN 20
Temperature:
Max. working temperature:
120°C
Min. working temperature:
-20°C
Material:
The valves are made of AMETAL
®
.
Seat seal:
Stem with EPDM O-ring
Spindle seal:
EPDM O-ring
Handwheel:
Polyamide
AMETAL
®
is the dezincification resistant alloy of TA.
= Flow direction
Marking:
Body:
PN 20/150, DN and inch size.
Handwheel:
Valve type and DN.
Setting STAD
Setting of a valve for a particular pressure drop, e g corresponding to 2.3 turns on the graph, is 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 until stop.
4. The valve is now set.
Fig. 1. Valve closed
Fig. 2. The valve is set at 2.3
Fig. 3. Fully open valve
To check the setting:
Close the valve, the indicator shows 0.0.
Open it to the stop position.
The indicator then shows the set value, in this case 2.3 (Fig. 2).
