Domestic hot water mixer LK 551 HydroMix 1" external thread

HydroMix domestic water mixer with check valves

LK 551 Hydro Mix is an asymmetric mixing valve for hot water preparation as a domestic water mixer and for heating systems. The domestic hot water mixer LK 551 has a thermal insert for regulating the hot water temperature. It regulates both the hot and cold water supply to achieve the desired temperature. The valve has an anti-scald device that interrupts the flow of hot water if the cold water supply fails. The domestic water mixer requires no maintenance. Check the installation regularly.

The valve wheel is used to set the desired hot water temperature within the control range. The protective cap prevents accidental changes to the temperature setting. When installing on a boiler/storage tank with a built-in water heater, a gap should be left between the valve and the boiler/storage tank to prevent thermal radiation from impairing the valve's function.

Technical data HydroMix:

• Working temperature: Min. 5 °C/Max. 65 °C
• Flow rate Kvs: 1.6 m³/h or 3.5 m³/h
• Hot water temperature: Min. 35 °C/Max. 65 °C
• Max. working pressure: 1.0 MPa (10 bar)
• Liquid 1: Water - Glycol max. 50% Ethanol max. 30%
• Thread standard: external thread
• Material, housing: brass EN 12165 CW617N, DZR brass, EN 12165 CW625N
• Other: Temperature stability ±3 °C

The arrow on the valve body indicates the flow direction.

C = incoming cold water
H = incoming hot water
M = outgoing hot water

Area of application

• Biomass application
• Application of solar technology
• Application hot water preparation
• Application heat pump
• Application of water-bearing chimney
• District heating application

Download

• Product data sheet
• Operating instructions
• certificate