Caleffi 1/2" Automatic Filling Unit 553140

Auto Filling Unit 1/2in 553140 is a sophisticated device consisting of a pressure reducing valve with a compensating seat, an inlet strainer, a shut-off valve, and a check valve. It is designed to maintain a constant pressure in the heating system, automatically replenishing water as needed to ensure consistent operation.
Auto Filling Unit 1/2in 553140 is a sophisticated device consisting of a pressure reducing valve with a compensating seat, an inlet strainer, a shut-off valve, and a check valve. It is designed to maintain a constant pressure in the heating system, automatically replenishing water as needed to ensure consistent operation.