The Caleffi F19153 is the replacement three-way thermostatic mixing valve for Caleffi 172-series manifold mixing stations, the three-way thermostatic valve group that blends boiler supply down to the 80 - 130 F radiant set point. Caleffi lists it as fitting 172 manifold stations; the construction and connection details below are taken from the station specification rather than a dedicated part sheet.
Product data compiled from Caleffi North America technical documentation (01155 NA, NA10814, NA11011) and the Caleffi North America product catalogue. Last reviewed August 2026.
Key Features
Factory Three-Way Mixing Valve
Brass body and bonnet with PSU shutter and EPDM seals - the same valve unit fitted to 172-series stations.
Restores 80 - 130 F Control
Renews accurate fixed-point mixing across the station's full adjustment range.
1 in Female Nut Connection
Connects to the station with the 1 in female union nut - no piping changes.
Thermostatic Actuator Compatible
Accepts the station's thermostatic actuator with built-in sensor.
Technical Data
| Function | Manifold / mixing station service part |
|---|---|
| Valve | Three-way thermostatic mixing valve unit |
| Body | Brass; PSU shutter; EPDM seals (per the 172-series station specification, 01155 NA / NA10814 - no dedicated part datasheet is published) |
| Control temperature range | 80 - 130 F (25 - 55 C) |
| Connection | 1 in female with nut, to the station's mixing-valve port (per 01155 NA / NA10814) |
Related Products
Frequently Asked Questions
The three-way thermostatic mixing valve unit on a Caleffi 172-series manifold mixing station - the brass valve that blends supply water to the 80 - 130 F set point.
It is the valve unit; the station's thermostatic actuator with built-in sensor mounts to it. Confirm actuator condition when servicing.
Via the 1 in female nut connection on the station - no piping modifications required.
- Type:
- Accessory
