Description
Combined filling unit maintaining correct boiler feed pressure with backflow prevention. Reliable protection for closed heating circuits.
Features
- Pre-adjustable filling pressure
- Visible pressure setting indicator
- Scale-resistant internal mechanism
- Manual tap, filter and check valve combined
- Standard equipment for the boiler room
Request a Quote
Get a free site survey and quotation for the Caleffi boiler filling unit (553 series) from the Projenza engineering team. With accurate capacity calculation, professional installation and periodic maintenance: (0501) 557 80 89 · bilgi@projenza.com
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