F.A.R.G 503/1 Automatic Boiler Filling Valve with Pressure Gauge 1/2″
Maintains stable heating circuit pressure with integrated gauge monitoring and backflow protection.
F.A.R.G 503/1 Automatic Boiler Filling Valve automatically maintains pressure balance in heating circuits. In addition, its integrated pressure gauge allows instant monitoring of system pressure. Moreover, it reduces mains pressure to a safe 0.5-3 bar range for reliable operation.
A built-in check valve prevents system water from flowing back into the mains supply. The brass CW617N body offers superior corrosion resistance. Furthermore, the 1/2″ male threaded connection fits standard combi boilers and boiler systems. With a maximum temperature tolerance of 80°C, it performs reliably under demanding conditions.
F.A.R.G 503/1 Automatic Boiler Filling Valve — Technical Specifications
This valve is essential for combi boiler and boiler rooms. It is also used safely in industrial heating processes. In particular, it minimizes failures caused by air and low pressure. Consequently, it delivers significant advantages in energy savings and system safety.
Key Advantages
- Integrated pressure gauge enables instant pressure monitoring and precise adjustment
- Built-in check valve prevents system water from flowing back into the mains supply
- Brass body provides superior corrosion resistance and long service life
Applications
- Automatic pressure management in building combi boiler and boiler rooms
- Safe filling in industrial heating and process piping systems
- Continuous water make-up in radiator and central heating systems
As a result, the F.A.R.G 503/1 Automatic Boiler Filling Valve provides a reliable and efficient solution for your heating systems. ORFA Industrial has been your trusted partner in industrial flow technologies since 1985, and supplies worldwide with technical support and fast delivery.
ORFA INDUSTRIAL PRODUCTS INDUSTRY AND TRADE INC.
Your Reliable Partner in Industrial Flow Technologies

Reviews
There are no reviews yet.