The Meiflow S MC R DN 32 pump group for a mixed circuit is designed for efficient control of heating systems where heating water mixing is required. The version without a pump allows selection to suit specific installation requirements and use in both existing and new systems. The assembly includes a three-way T-mixing valve with continuously adjustable bypass, ball valves, a non-return valve with air vent in the return line, integrated strap-on thermometers and EPP insulation. The right-hand version and robust steel and brass construction ensure reliable operation in heating applications.