Automatic heating filling valve, filling combination DN15 ½" Caleffi

Caleffi's automatic heating filling valve is specially designed for the reliable operation of closed-circuit heating systems. The compact, complete system consists of a shut-off valve with a maintenance-friendly, inspectable strainer, a highly effective BA-type backflow preventer with a controllable, pressure-reducing zone, and a precisely pre-adjustable filling valve. These components not only ensure maximum operational reliability but also enable user-friendly installation even in confined spaces. To minimize heat loss and prevent condensation, the filling valve is supplied complete with a pre-formed insulation shell.

The automatic filling valve fulfills the essential task of continuously maintaining the operating pressure of the heating system at the desired setpoint and automatically topping up any missing water. The presetting option allows the desired setpoint pressure to be precisely configured before the system is filled. This simplifies maintenance and significantly increases operational reliability. It is intended for installation exclusively in the filling line of closed heating systems.

A key element is the system separator, which ensures compliance with the provisions of EN 1717 and prevents potentially contaminated water from the heating circuit from flowing back into the drinking water network. The filling valve thus ensures drinking water hygiene and reliably protects the entire water supply system from contamination.

Filling valve:

• Adjustment range: 0.2–4 bar
• Factory setting: 1.5 bar
• Display precision: ±0.15 bar
• Pressure range of the pressure gauge: 0–4 bar
• Mesh size of inner dirt trap Ø: 0.28 mm

Services:

• Working media: drinking water
• Max. operating pressure: 10 bar
• Max. operating temperature: 65°C
• Noise group: I

Further detailed technical information and instructions for the installation and operation of the Caleffi automatic heating filling valve can be found in the Operating instructions.