45 LK 822 ThermoBac LK 822 ThermoBac is a 3-way check valve with low opening pressure and high fluid capacity. The valve is especially suitable for heating systems with storage tanks. The check valve prevents self-circulation from storage tank to boiler after the fire has gone out. In case of power failure or pump breakdown LK 822 ThermoBac automatically opens for self-circulation. LK 822 can be equipped with an insulation - see under Accessories. For more information, please see the product sheet for insulations page 49. The valve should be mounted so that the flap in the check valve closes by its own weight. Technical Data Working temperature Min. +5°C/Max. +110°C Ambient temperature Min. +5°C/Max. +60°C Max. working pressure 1.0 MPa (10 bar) Max. differential pressure 50 kPa Media Water - Glycol mixture max. 50% Thread standard Rp - female thread, G - male thread Material, valve body Brass EN 12165 CW617N Material, cover Brass EN 12165 CW617N Material, sealing EPDM Thermic Valves and Check Valves | LK 822 ThermoBac Capacity Diagram Kvs (m³/h) 16 14 10.0 9.0 6.0 ( m³/h) 1.0 Flow 0.1 0.1 1.0 10.0 100.0 Pressure drop (kPa)
LK Armatur - Produktkatalog 2014 ENG
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