Description
Product Summary
The Caleffi 521509A is a mixing valve from Caleffi, described by the manufacturer as: 3 way thermostatic mixing valve 3/4" sweat. It is sized for 3/4" connections (sweat).
A mixing valve blends hot and cold water to a set outlet temperature for radiant heat or for scald protection on domestic hot water. Replace a valve that cannot hold its set temperature or leaks.
Before you order, match 521509A to the part number on the part you are replacing or in your equipment's repair parts list, and confirm the voltage, size and connections match your equipment. If you are not sure which part your equipment needs, call us at 1.888.509.3391 with the model and serial number and we will confirm it for you.
Key Features
- Genuine Caleffi part: Manufacturer part number 521509A, factory new.
- Pipe Size: 3/4".
- Part type: Mixing Valve.
- Ready to ship: In stock with live quantities shown on this page.
Frequently Asked Questions
Is this a genuine Caleffi part?
Yes. This is the Caleffi 521509A, a factory-new mixing valve from Caleffi.
How do I make sure it fits my equipment?
Compare 521509A with the part number printed on the part you are replacing or listed in your equipment's repair parts list, and confirm the voltage and connections match. If you are not sure, call us at 1.888.509.3391 with your model and serial number and we will confirm it.
Should a professional install this part?
Yes. Gas, electrical, hydronic and combustion components should be installed by a qualified technician who can test the system afterward and follow the codes that apply where you live.
