
The Story
Maxiflame LK 551 HydroMix M¾ Thermostatic Mixing Valve 35-65°C with G½ x¾ connection kit
The LK 551 HydroMix is a thermostatic mixing valve designed for precise water temperature regulation in domestic hot water and heating systems. Thanks to the internal thermostatic element, it automatically mixes hot and cold water while maintaining the set temperature.
The model with M ¾” connections and regulation range 35°C – 65°C is supplied complete with G½” x ¾” connection kit , for simple and immediate installation.
Equipped with an anti-scald function , it interrupts the flow of hot water in the event of a lack of cold water, ensuring maximum safety during use. The water level is regulated via a graduated knob with tamper-proof protection.
Ideal for installation on boilers, storage tanks, DHW systems and heating systems , including low temperature circuits.
Main technical features
- Adjustment range: 35°C – 65°C
- Max pressure: 10 bar
- Operating temperature: 5°C ÷ 95°C
- Kvs: ~1.5 m³/h
- Valve body: DZR brass
- Temperature stability: ±3°C
- Compatible fluids: water and mixtures with glycol (max 50%)
Strengths
- Precise thermostatic regulation
- Anti-scald safety
- Quick installation with included kit
- Suitable for civil and commercial systems
You can install it:
- At the outlet of boilers or storage tanks (including solar ones) to regulate the DHW temperature
- On the domestic hot water distribution line to users (taps, showers)
- In mixing groups for low-temperature heating systems (e.g. radiant floor heating)
- Downstream of boilers or heat pumps , to stabilize and secure the water temperature
In general: always on the water circuit, user side (secondary), not on the primary circuit of the generator.
NB: FOR FURTHER DETAILS WE RECOMMEND VIEWING THE TECHNICAL DATA SHEET ATTACHED (Valve Code 181453/Connection kit Code 092055551).
WARRANTY
The warranty is the official Maxiflame one and lasts 2 years.
Description
Maxiflame LK 551 HydroMix M¾ Thermostatic Mixing Valve 35-65°C with G½ x¾ connection kit
The LK 551 HydroMix is a thermostatic mixing valve designed for precise water temperature regulation in domestic hot water and heating systems. Thanks to the internal thermostatic element, it automatically mixes hot and cold water while maintaining the set temperature.
The model with M ¾” connections and regulation range 35°C – 65°C is supplied complete with G½” x ¾” connection kit , for simple and immediate installation.
Equipped with an anti-scald function , it interrupts the flow of hot water in the event of a lack of cold water, ensuring maximum safety during use. The water level is regulated via a graduated knob with tamper-proof protection.
Ideal for installation on boilers, storage tanks, DHW systems and heating systems , including low temperature circuits.
Main technical features
- Adjustment range: 35°C – 65°C
- Max pressure: 10 bar
- Operating temperature: 5°C ÷ 95°C
- Kvs: ~1.5 m³/h
- Valve body: DZR brass
- Temperature stability: ±3°C
- Compatible fluids: water and mixtures with glycol (max 50%)
Strengths
- Precise thermostatic regulation
- Anti-scald safety
- Quick installation with included kit
- Suitable for civil and commercial systems
You can install it:
- At the outlet of boilers or storage tanks (including solar ones) to regulate the DHW temperature
- On the domestic hot water distribution line to users (taps, showers)
- In mixing groups for low-temperature heating systems (e.g. radiant floor heating)
- Downstream of boilers or heat pumps , to stabilize and secure the water temperature
In general: always on the water circuit, user side (secondary), not on the primary circuit of the generator.
NB: FOR FURTHER DETAILS WE RECOMMEND VIEWING THE TECHNICAL DATA SHEET ATTACHED (Valve Code 181453/Connection kit Code 092055551).
WARRANTY
The warranty is the official Maxiflame one and lasts 2 years.












