Variable air/gas ratio controls for maintaining a constant gas/air pressure ratio of 4:1 on systems with air pre-heating, GIKH for continuous control, GIKH..B for high/low/off control, EC type tested and certified.

DN: 25,
connection: thread or flange,
pe: max. 200 mbar,
Δp: max. 100 mbar,
ΔpL: 0.15 to 30 mbar,
pG: 0.2 to 120 mbar.

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