Thermic Loading Valve

LK 823 ThermoVar®

• Increases the efficiency of the system

• Prevents condensation and taring

• Ensures an optimal temperature stratification

in the storage tank

10.0

1.0

0.1

0.1

1.0

10.0

Pressure drop (kPa)

Kvs (m3/h)

12

9.0

100.0

B

AB

A

CAPACITY DIAGRAM

LK 823 ThermoVar® 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.

LK 823 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® is

for right- or left-hand mounting.

65

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

(45 - 55 °C) Min. 5 °C/Max. 95 °C

(60 - 70 °C) Min. 5 °C/Max. 110 °C

Opening temperature

45 °C, 50 °C, 55 °C, 60 °C, 65 °C

or 70 °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 1982 CB753S

Material internal cover

Brass EN 12165 CW617N

Material sealing

EPDM

F

l

o

w

(

m

3

/

h

)