Pressure Gauge Afriso RF 63 AX Ø80 mm 0–4 bar 1/2" Class 2.5

Afriso RF 63 AX Ø80 mm pressure gauge for heating systems provides clear, mechanical pressure measurement in the 0–4 bar range. The instrument features a standard RF63 case with an 80 mm bezel diameter and a 63 mm dial size, and is intended for monitoring pressure in boilers, hot-water systems and other heating installations. The gauge is fitted with a 1/2" connection and offers accuracy class 2.5, which supports routine service, diagnostics and system checks by presenting readable, analogue pressure values.

Advantages

The gauge delivers straightforward, reliable pressure readings without requiring power, with a compact design that fits common heating equipment panels. Its analogue dial and defined accuracy class enable technicians to perform quick visual inspections and basic diagnostics. The 1/2" connection and standard case dimensions allow compatibility with typical pipework and mounting arrangements used in residential and light-commercial heating systems.

Suitable for

• Monitoring pressure in domestic and small-commercial central heating systems
• Pressure checks on boilers and hot-water circulation systems
• Routine maintenance and on-site diagnostics by service technicians
• Replacement of existing mechanical pressure gauges with the same case size

Key specifications

• Measuring range: 0–4 bar
• Dial size (standard case): 63 mm
• Bezel / overall face diameter: 80 mm
• Connection size: 1/2" (threaded)
• Accuracy class: 2.5
• Display type: Analogue dial with pointer
• Intended medium: Water and heating fluids typically used in closed heating systems

How to use

Install the gauge into the designated pressure tapping or port using the 1/2" threaded connection, ensuring appropriate sealing material or tape on the thread to prevent leaks. Mount the instrument so the dial is easily visible for monitoring. After installation, pressurize the system slowly and observe the pointer to confirm it responds and remains stable. For routine checks, read the pressure value from the dial while the system is operating and compare it to recommended operating ranges for the specific installation.

Usage recommendations

Do not exceed the gauge's measuring range and avoid exposure to excessive vibration or shock. For accurate long-term readings, perform visual inspections regularly and replace the gauge if the pointer sticks, shows erratic movement, or if the glass or case is damaged. Use appropriate thread sealant compatible with heating system media and ensure the unit is installed by a qualified technician when used in pressurised boiler systems.