Caleffi 551007A DISCAL Air Separator 1-1/4" FNPT for Hydronic Systems, 150 psi

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Caleffi 551007A DISCAL Air Separator 1-1/4" FNPT for Hydronic Systems, 150 psi

Name: Caleffi 551007A DISCAL Air Separator 1-1/4" FNPT for Hydronic Systems, 150 psi
Brand: Caleffi
SKU: CALE-551007A
Price: 277.99 USD
Availability: InStock

CaleffiSKU: CALE-551007A

Price:

$277.99

Stock:

Re-stocking soon

Quantity:

Special order — typically ships in 1–3 weeks.
Contact us for an exact lead time.

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Shipping details

Shipping weight: 5.2 lb
Box size: 9.75 × 5.38 × 4.12 in

Connection Type	MIP
Size	1-1/4"
Type	Air Separators

The Caleffi 551007A is a 1-1/4" DISCAL Air Separator with female NPT threaded connections. It continuously removes air and microbubbles from closed-loop hydronic systems.

DISCAL separators work on the coalescing principle: an internal element causes entrained air and microbubbles to combine and rise into the upper chamber, where a float-operated automatic air vent releases them. Removing air reduces noise, corrosion and pump cavitation and improves heat transfer in closed-loop hydronic heating and cooling systems.

Before ordering, confirm the 1-1/4" female NPT threaded connection matches your main piping, and that the system stays within 150 psi and 250F. Install it on the supply side where water temperature is highest for best air removal.