vaillant overflow valve rp 3 4 Caleffi or backflow prevention

or backflow prevention

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vaillant overflow valve rp 3 4 Caleffi or backflow preventionVaillant overflow valve Rp 3 4 adjustable 150350 mbar Product description The Vaillant Rp 3 4 bypass valve ensures controlled pressure equalization in heating circuits and prevents disruptive flow noises and unregulated flow rates. It is infinitely adjustable and suitable for reliable use in compatible Vaillant systems. Technical data The valve is adjustable from 150 to 350 mbar and has an Rp 3 4 connection. It is designed for use with Vaillant