Description
- Size: DN20 = 3/4″
- อะไหล่ Bentone, Riello burner
- One regulator and two main valves:
two-stage valve
– One valve is fast opening, one valve is
slow or fast opening - Solenoid valves up to 360 mbar (36 kPa)
as per DIN EN 161 Class A Group 2 - High flow rates with low pressure drop
- DC solenoid drive interference degree N
- Main volume restrictor and partial volume restrictor at valve V2
- Hydraulic opening delay
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