Safety Valve

LK 556 AntiFreeze

• Protects heating system from freeze damage

• The valve is maintenance-free

• Insulation available as an accessory to save energy

TECHNICAL DATA

Max. working pressure

Min. working pressure

Working temperature

Opening temperature

Ambient temperature

Storage temperature

Thread standard

Media

Material valve body

Material sealing

LK 556 - Male thread

0.6 MPa (6 bar)

0.05 MPa (0,5 bar)

0-75 °C

3 °C

-30-60 oC

-30-60 oC

G - male thread

Water

Brass EN 12165 CW617N

EPDM

LK 556 AntiFreeze protects your heating system, usually in an

air/water heat pump, if the fluid temperature should drop below

+3°C by draining the system. This prevents the heating system

from freezing.

If the valve opens and drains the system, no action is required

to reset the valve, the system can be refilled again as soon as

normal circulation in the heating system is resumed.

Insulation is available as an accessory for maximum energy saving.

Refer to Accessories & Spare parts.

Article no.

182740

182741

Opening temp.

3 °C

3 °C

�

Dim.

DN

M 1”

25

M 11⁄4”

32

Kvs m3/h

55

70

A mm

55

55

B mm

114

123

C mm

32

42

Weight kg

0.35

0.4

�

�

183