
Altecnic Thermostatic Blending Valve – Non-failsafe Valve for General USE
Altecnic Thermostatic Blending Valve – Non-failsafe Valve for General USE
● The 520 adjustable thermostatic mixing valves is designed to maintain the preset temperature of the mixed water delivered to the user despite variations in the temperature of the water contained in the system.
Altecnic code(s): 520430, 520440, 520530, 520540, 520630, 520640
Delivery: shipped direct from Altecnic (Caleffi Group).

Altecnic Thermostatic Blending Valve – Non-failsafe Valve for General USE
Altecnic Thermostatic Blending Valve – Non-failsafe Valve for General USE
● The 520 adjustable thermostatic mixing valves is designed to maintain the preset temperature of the mixed water delivered to the user despite variations in the temperature of the water contained in the system.
Altecnic code(s): 520430, 520440, 520530, 520540, 520630, 520640
Delivery: shipped direct from Altecnic (Caleffi Group).
Altecnic Thermostatic Blending Valve – Non-failsafe Valve for General USE
The 520 adjustable thermostatic mixing valves is designed to maintain the preset temperature of the mixed water delivered to the user despite variations in the temperature of the water contained in the system.
The 520 is ideally suitable of use on underfloor heating to maintain the circulating water through the underfloor coil at the preset temperature, by mixing hot water from the boiler with the return water from the coil.
Available Options
| Altecnic code | Size | Connections | Temperature Range |
|---|---|---|---|
| 520430 | ½˝ | F BSP | Setting range 30 - 48°C |
| 520440 | ½˝ | F BSP | Setting range 40 - 60°C |
| 520530 | ¾″ | F BSP | Setting range 30 - 48°C |
| 520540 | ¾″ | F BSP | Setting range 40 - 60°C |
| 520630 | 1″ | F BSP | Setting range 30 - 48°C |
| 520640 | 1″ | F BSP | Setting range 40 - 60°C |
Technical Downloads
Delivery: shipped direct from Altecnic to your site or address.
Altecnic Thermostatic Blending Valve – Non-failsafe Valve for General USE
The 520 adjustable thermostatic mixing valves is designed to maintain the preset temperature of the mixed water delivered to the user despite variations in the temperature of the water contained in the system.
The 520 is ideally suitable of use on underfloor heating to maintain the circulating water through the underfloor coil at the preset temperature, by mixing hot water from the boiler with the return water from the coil.
Available Options
| Altecnic code | Size | Connections | Temperature Range |
|---|---|---|---|
| 520430 | ½˝ | F BSP | Setting range 30 - 48°C |
| 520440 | ½˝ | F BSP | Setting range 40 - 60°C |
| 520530 | ¾″ | F BSP | Setting range 30 - 48°C |
| 520540 | ¾″ | F BSP | Setting range 40 - 60°C |
| 520630 | 1″ | F BSP | Setting range 30 - 48°C |
| 520640 | 1″ | F BSP | Setting range 40 - 60°C |
Technical Downloads
Delivery: shipped direct from Altecnic to your site or address.







