3-way check valve DN25, Kvs 14, brass, LK 822 ThermoBac
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3-way check valve DN25, Kvs 14, brass, LK 822 ThermoBac

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. DN25 (1"). We don't sell the LK Armatur products to outside of Estonia!

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In case of power failure or pump breakdown LK 822 ThermoBac valve automatically opens for self-circulation. The valve should be mounted so that the flap in the check valve closes by its own weight.

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. pressure difference: 50 kPa
Media: Water - Glycol mixture max. 50%
Material, valve body/cover: Brass EN 12165 CW617N
Material, sealing: EPDM
Manufacturer: LK Armatur AB

LK 822 ThermoBac

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