Mixing Valves | LK 840 ThermoMix LK 840 ThermoMix Technical Data 56 LK 840 ThermoMix is a 3-way valve that can be used as a mixing valve or as a diverting valve in heating systems. LK 840 ThermoMix is suitable for motorization. LK 840 can be equipped with an insulation - see under Accessories. For more information, please see the product sheet for insulations - page 72. The valve can be mounted at any angle. LK 840 ThermoMix can easily be adapted for right- or lefthand mounting. 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°/360° Torque < 1 Nm Media Water - Glycol/Ethanol mixture max. 50% Thread standard Rp - female thread, G - male thread Material, valve body Brass EN 12165 CW617N Material, internal cover PPS Composite Material, external cover Aluminium Material, slide/spindle Brass EN 12165 CW617N Material, sealing EPDM Spindle sealing Two O-rings Valve Characteristics 100 80 Return 60 (%) 40 Flow ( 20 0 Heat 0 10 20 30 40 50 60 70 80 90 Opening angle (°) Capacity Diagram Kvs (m³/h) 40 10 24 15 12 8.0 6.3 4.0 (m ³/h) 2.5 2 5 1 1.6 1.0 Flow 0.6 0.1 0.1 1 10 100 Pressure drop (kPa) 0.01
LK Armatur - Produktkatalog 2014 ENG
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