The Caleffi 546307AM is a DIRTMAG Pro magnetic dirt separator with 1-1/4" female NPT connections. It is installed in the circuit to remove dirt and ferrous particulate before it reaches pumps, control valves and heat exchangers.
Best for systems with cast iron or steel components, where ferrous debris would otherwise circulate.
Specifications sourced from Caleffi North America technical literature. Last reviewed July 2026.
Key Features
Low-Velocity Dirt Collection
An enlarged chamber drops fluid velocity so heavier particulate settles into a collection zone that can be flushed without shutting the system down.
Magnetic Ferrous Capture
A Neodymium rare-earth assembly captures ferrous debris that a non-magnetic separator passes straight through, protecting pumps and heat exchangers.
Construction
Body material: Brass.
Rated Operating Envelope
Maximum operating pressure 150 psi, medium temperature range 32 - 250 °F.
Technical Specifications
| Function | Magnetic dirt separation |
| Series | Caleffi DIRTMAG Pro |
| Connection | 1-1/4 in female NPT |
| Body material | Brass |
| Magnet | Neodymium rare-earth |
| Dirt separation | Non-ferrous debris to 5 micron |
| Maximum operating pressure | 150 psi |
| Medium temperature range | 32 - 250 °F |
| Shipping Weight | 5.8 lb |
Documentation
Related Products
- Caleffi 546306AM : DIRTMAG Pro Magnetic Dirt Separator 1" NPT Threaded
- Caleffi 546308AM : DIRTMAG Pro Magnetic Dirt Separator 1-1/2" female NPT
- Caleffi 546309AM : DIRTMAG Pro Magnetic Dirt Separator 2" NPT Threaded
- Caleffi 546328AM : DIRTMAG Pro Magnetic Dirt Separator 1" Sweat
Frequently Asked Questions
What does Caleffi 546307AM do?
Caleffi 546307AM is a magnetic dirt separator in the Caleffi DIRTMAG Pro range. It removes dirt and ferrous debris from the circulating fluid, protecting pumps, valves and heat exchangers.
What connection does Caleffi 546307AM use?
It is supplied with 1-1/4" female NPT connections. Other sizes and connection styles in the DIRTMAG Pro range are listed under Related Products.
What are the pressure and temperature limits of Caleffi 546307AM?
Maximum operating pressure is 150 psi, over a medium temperature range of 32 - 250 °F.
What is the warranty on Caleffi 546307AM?
Caleffi covers this product under its standard two-year limited warranty against defects in material and workmanship from the date of shipment. ZOT Supply is an authorized Caleffi distributor.
- Product Type:
- Magnetic Dirt Separator
- Series:
- DIRTMAG Pro
- Connection Type:
- Female Npt
- Connection Size:
- 1-1/4 in
- Magnet:
- Neodymium rare-earth
- Dirt Separation:
- Non-ferrous debris to 5 micron
- Max Operating Pressure:
- 150 psi
- Medium Temperature Range:
- 32 - 250 deg F
- Body Material:
- Brass
