Caleffi 553642A Filling Valve/Pressure Gauge

Filling Valve/Pressure Gauge, the Caleffi 553642A, delivers precise filling and accurate pressure monitoring for hydronic systems. This automatic, pre-adjustable unit combines a brass body with a PA 66 GF 30 cover and NBR seal to withstand temperatures up to 150°F and a pressure rating up to 230 PSI. With a nominal size of 1/2 inch and end connections as male threaded union x female threaded union, it fits typical piping layouts. The end-to-end distance is 4-3/4 inches, and the unit supports a pressure setting range from 3 to 60 PSI, with a factory setting at 15 PSI and a 0-60 PSI gauge scale for easy readings. The unit is suitable for CSA-standard installations and features a visual system pressure indicator for quick status checks.

• Type: Automatic, Pre-Adjustable
• Nominal Size: 1/2 inch
• End Connections: Male Threaded Union x Female Threaded Union
• End to End Distance: 4-3/4 inch
• Material: Brass body; PA 66 GF 30 cover; NBR seal
• Pressure Range: 3–60 PSI (Factory setting 15 PSI)
• Gauge: 0–60 PSI scale
• Temperature Rating: 150°F max
• Standards: CSA (Canada and US)
• Application: Visual system pressure indicator