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control unit,manufacturer type KLUDI GmbH & Co KGKLUDI Keramik control unititem no. 7475000-00,made of plastic / ceramic,with presettablehot water limiter,according to DVGW guidelines,diameter D 40 mm,according to drinking water regulations,max. Operating temperature 90 degrees C,max. test pressure 25 bar,max. operating pressure 10 barhowever, for operating pressuresabove 5 bar, a pressure reducermust be installed upstream to comply with the noise valuesaccording to DIN 4109,with adjustable hot water limiter,for energy saving andfor scald protectionmax. Hot water inlet temperature65 degrees C recommended,tested by KLUDI GmbHwith 70,000 cycles according to DIN EN 817