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LK Armatur - Produktkatalog 2014 ENG

Mixing Valves | LK 831 ThermoMix B LK 831 ThermoMix B Technical Data 54 LK 831 ThermoMix B 4-way bivalent mixing valves are designed for heating systems, where energy is taken from two heating units connected in series or parallel or for storage tank systems where energy is extracted from two levels. LK 831 ThermoMix B should be equipped with an automatic control unit to ensure that the most favourable heat source is prioritised at all times. The valve can be mounted at any angle. Valve ports are marked 1-4. The valve is to be mounted according to 1=Supply, 2=Return, 3=Secondary heat and 4=Primary heat. Working temperature Min. +5°C/Max. +110°C (+120°C briefly) Ambient temperature Min. +5°C/Max. +60°C Max. working pressure 1.0 MPa (10 bar) Max. differential pressure 50 kPa Leakage < 1% of Kvs at 50 kPa Angle of rotation 90° Torque < 1 Nm Media Water - Glycol/Ethanol mixture max. 50% Material, valve body Brass EN 12165 CW617N Material, cover Brass EN 12165 CW617N Material, slide/spindle Brass EN 12164 CW614N Material, sealing EPDM Spindle sealing Two O-rings Valve Characteristics 100 80 60 40 Flow (%) Return 20 0 0 10 20 30 40 50 60 70 80 90 Opening angle (°) Primary heat Secondary heat Capacity Diagram 10.0 Kvs (m³/h) 4.0 / h) 1.0 Flow (m³0.1 0.1 1.0 10.0 100.0 Pressure drop (kPa)


LK Armatur - Produktkatalog 2014 ENG
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