Wholesalercat_APA_2012_LOW-complete - page 61

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Signal flow characteristics for EV260B
Coil type BK. Without signal converter
The basic version consists of a valve with a coil for
pulsating direct current. The supply voltage of 24V DC
can be established with full-wave rectified alternating
current. The valve begins to open at a coil current of
approx. 300 mA and is fully open at a coil current of ap-
prox. 600 mA. The ration between coil current and flow
between the two outer points is directly proportional.
Coil type BL. With signal converter and 4-20 mA pilot
signal.
The ration between pilot signal and flow is directly
proportional throughout the regulation range.
Coil type BM. With signal converter and 0-10 V pilot signal.
The ration between pilot signal and flow is directly
proportional throughout the regulation range.
Supply voltage: 24 V pulsating dc
Supply voltage: 21-30 V dc
Supply voltage: 21-30 V dc
Capacity diagram for EV260B
For water at fully opened valve
Example: Differential pressure of 3 bar:
EV260B 6 B: Appr. 1.4 m
3
/h
EV260B 10 B: Appr. 2.2 m
3
/h
EV260B 15 B: Appr. 3.6 m
3
/h
EV260B 20 B: Appr. 8.7 m
3
/h
Flow %
Flow %
Flow %
1...,51,52,53,54,55,56,57,58,59,60 62,63,64,65,66,67,68,69,70,71,...172
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