Caleffi AutoFill™ 553642A Automatic Filling Valve, 1/2 in, MNPT x FNPT, 230 psi, Brass

The automatic filling valve is a device consisting of a pressure reducing valve with compensating seat, visual system pressure setting indicator, an inlet filter, anti-scale internal parts, a shut-off valve (round knob on bottom) and a check valve. It is installed on the water inlet piping in sealed heating systems and it's main function is to maintain the pressure of the system at a set value, automatically filling up with water as required. The valve is pre-adjustable, meaning it can be set to the desired pressure value before the system charging phase. After installation, during the filling or topping-off phase, the water feed will stop when the set pressure is reached. This valve fills 50% faster than other valves. There are no levers to flip or valve to close.

Caleffi AutoFill™ Automatic Filling Valve, 1/2 in Nominal, MNPT x FNPT Connection, 230 psi, 0 to 60 psi Pressure Gauge Scale, Brass, 150 deg F, 5-3/4 in L

• Pre-adjustable, automatic filling valve
• Anti-scale with visual system pressure indicator

• Instruction/Installation Manual https://assets.unilogcorp.com/267/ITEM/DOC/Caleffi_553642A_Instruction_Installation_Manual.pdf
• Specification Sheet https://assets.unilogcorp.com/267/ITEM/DOC/Caleffi_553642A_Specification_Sheet.pdf
• Video Link https://youtu.be/1b9WzzlghPQ?list=PLuuV0ELkYb5W4rxl_ewz19aCY1avwViK7