Thermic Loading Valve

LK 823 ThermoVar® R

• Increases system efficiency

• Prevents condensation and tarring

• Adjustable temperature

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B

AB

A

CAPACITY DIAGRAM

LK 823 ThermoVar® R is a 3-way thermic loading valve for solid

fuel/storage tank installations. The valve is intended to ensure

both an optimal temperature stratification in the storage tank

and a high return temperature to the boiler, thus increasing the

efficiency of the system. Tarring and condensation are prevented

which prolongs boiler life.

The valve regulates on two ports, which means that there is

no need for a balancing valve in the cirucit between boiler and

loading valve. The thermostatic element starts to open port A

when the outgoing mixed water temperature in port AB reaches

the opening temperature. Port B is closed when the temperature

in port A exceeds the nominal opening temperature by 10 °C.

The valve is adjustable within the range of 55 °C to 70 °C.

LK 823 R 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 823 ThermoVar® R

is for right- or left-hand mounting.

TECHNICAL DATA

Leakage

< 0.5% of Kvs at 100 kPa

Max. working pressure

1.0 MPa (10 bar)

Max. differential pressure

100 kPa (1 bar)

Working temperature

Min 5 oC/Max 95 oC

Opening temperature

55-70 °C / 45-60 °C

Ambient temperature

Min 5 oC/Max 60 oC

Thread standard

Rp - female thread,

G - male thread

Media

Water - Glycol mixture max. 50%

Material valve body

Brass EN 1982 CB753S

Material external cover

Brass EN 12165 CW617N

Material sealing

EPDM

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