Mixing Valve

LK 851 ThermoMix® H

•

•

Simple motorisation

CC 125 mm

100

80

60

40

20

0

8,0

VALVE CHARACTERISTICS

CAPACITY DIAGRAM

0

10

20

30

40

50

60

70

80

90

Opening angle (°)

LK 851 ThermoMix® H is a 4-way mixing valve suited for heat-

ing systems in which a high return temperature is needed to

avoid corrosion, thus prolonging the life-time of the heat source.

LK 851 ThermoMix® H is suitable for motorization.

The valve can be mounted at any angle. LK 851 ThermoMix® H

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

87

TECHNICAL DATA

Angle of rotation

90°

Torque

< 3 Nm

Leakage

< 1% of Kvs at 50 kPa

Max. working pressure

1.0 MPa (10 bar)

Max. differential pressure

50 kPa (0.5 bar)

Working temperature

Min. 5 °C/Max. 110 °C

(120 °C briefly)

Ambient temperature

Min. 5 °C/Max. 60 °C

Thread standard

G - male thread

Media

Water - Glycol mixture max. 50%

Ethanol mixture max. 30%

Material valve body

Brass EN 12165 CW617N

Material external cover

Brass EN 12165 CW617N

Material slide/spindle

Brass EN 12165 CW617N

Material sealing

EPDM

Spindle sealing

Two O-rings

10,0

1,0

0,1

0,1

1,0

10,0

100,0

Pressure drop (kPa)

F

l

o

w

(

m

3

/

h

)

Kvs (m3/h)

Heat

F

l

o

w

(

%

)