Thermic Zone Valve

LK 821 ThermoVar®

• Position-independent

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CAPACITY DIAGRAM

LK 821 ThermoVar® 3-way thermic zone valve is designed to

change the direction of flow of the media in heating systems.

The valve is controlled by the temperature of the media. With an

LK 821 ThermoVar® installed in, for example, a solar heating

system an optimal stratification in the storage tank is obtained.

LK 821 can be equipped with an insulation - see under

Accessories. For more information, please see the product

sheet for insulations.

The valve can be mounted at any angle. LK 821 ThermoVar®

can easily be adapted for right- or left-hand mounting.

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TECHNICAL DATA

Max. working pressure

1.0 MPa (10 bar)

Max. differential pressure

50 kPa (0.5 bar)

Working temperature

(45 - 55 °C) Min. 5 °C/Max. 95 °C

(61 - 80 °C) Min. 5 °C/Max. 110 °C

Opening temperature

45 °C, 55 °C, 61 °C, 66 °C, 72 °C

or 80 °C

Ambient temperature

Min. 5 °C/Max. 60 °C

Thread standard

Rp - female thread,

G - male thread

Media

Water - Glycol mixture max. 50%

Material valve body

Brass EN 12165 CW617N

Material external cover

Brass EN 12165 CW617N

Material sealing

EPDM

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