Series 4F are 4-way valves with flange connection PN6 suitable for double mixing operation up to 6 bar. The valves are made of high-performing cast iron allowing use in heating and cooling installations. The 4F series is available in DN40-100 and comes with a PN6 flange to suit PN6 flange pipe dimensions. The Valve is perfectly combined with ESBE actuators and controllers.