Caleffi 553 Series 553549A Auto Fill Automatic Filling Valve With Pressure Setting Indicator, 1/2 in, Sweat x FNPT

Caleffi Auto Fill Automatic Filling Valve With Pressure Setting Indicator, 553 Series, 1/2 in Nominal, Sweat x FNPT Connection, Brass, 150 deg F, 40.75 in L x 5.937 in H

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.

• Pre-adjustable, automatic filling valve
• Anti-scale with visual system pressure setting indicator
• Complete with manual shut-off valve, strainer and check valve

Specifications