Mixing valves Equipment for heating systems 3-/4-way mixing valves ARV (Vario) ■ ■ ■ ■ For distribution and mixing 3-way mixing valve with adjustable flow coefficient Kvs Low torque for increased service life of actuator ProClick adapter system for motor mounting without tools A 4-way mixing valves Page ARM 213 Application Universal mixing application in water-based heating and cooling systems (radiators, panel heating systems). The 3-way mixer can also be used as a distribution or zone mixer. Suitable for water and water/ glycol mixtures with up to 50 % glycol. Not suitable for drinking water. Description Compact, low-loss 3-way or 4-way mixing valves with brass base and easy-to-handle rotary knob made of high-strength plastic. The rotary knob with scale allows for easy and accurate manual adjustment of the mixing valve. The elevated mark allows for fast position determination. With dual scale "0 to 10" for horizontal installation and "10 to 0" for vertical installation for maximum flexibility. 3-way mixing valve for distribution and mixing: The desired flow temperature is obtained via the precise mixing ratio of hot boiler water and cold water from the return line. 4-way mixing valve for dual mixing. The return temperature to the boiler can be high in order to avoid corrosion damage, for example. The mixing valves are easy to automate with the AFRISO actuators. The AFRISO ProClick adapter system allows for hassle-free mounting of the motor to the mixing valve without tools. Technical specifications Angle of rotation 90° Flow rate See ordering table Operating temperature range Medium: 5/95 °C Leak rate (∆p = 100 kPa) See ordering table Nominal pressure Max. 10 bar Material Housing: Brass (CW617N) Seals/O rings: EPDM Permissible differential pressure Max. 1 bar Version Adjustment range flow coefficient Kvs for mixing Adjustment range flow coefficient Kvs for distribution, 90° Adjustment range flow coefficient Kvs for distribution, straight ARV 362 Vario 3.5–9 m³/h 3.4 m³/h 9 m³/h ARV 382 Vario 3.5–9 m³/h 3.4 m³/h 9 m³/h ARV 384 Vario 4.5–12 m³/h 5.4 m³/h 12 m³/h ARV 385 Vario 7.5–19 m³/h 9.8 m³/h 19 m³/h ARV 386 Vario 14–36 m³/h 16.2 m³/h 36 m³/h < 0.7 % at Δp = 100 kPa <0.2 % ARV 387 Vario 17–50 m³/h 24 m³/h 50 m³/h < 0.7 % at Δp = 100 kPa <0.2 % Leak rate for mixing < 0.1 % at Δp = 50 kPa; <0.2% at Δp = 100 kPa < 0.1 % at Δp = 50 kPa; <0.2 % at Δp = 100 kPa < 0.2 % at Δp = 50 kPa; <0.2 % at Δp = 100 kPa < 0.3 % at Δp = 50 kPa; <0.7 % at Δp = 100 kPa Leak rate for distribution <0.05 % <0.05 % <0.05 % <0.05 % ARV 484 9 m³/h - - < 0.3 % at Δp = 100 kPa - ARV 485 18 m³/h - - < 0.7 % at Δp = 100 kPa - ARV 486 27 m³/h - - < 1 % at Δp = 100 kPa - ARV 487 36 m³/h - - < 1 % at Δp = 100 kPa - www.afriso.com 53 3 7