BELIMO A-22D-A03

When deploying temperature sensors in HVAC ductwork or ventilation systems, proper mounting is often overlooked—but is critical for reliable performance. The BELIMO A-22D-A03 flange addresses this exact need. Designed to accommodate 6 mm diameter probe sensors, it provides a stable mechanical base and ensures the sensor is held correctly in place within the duct wall or sensor pocket. The plastic material construction supports temperatures up to 120 °C (248 °F), making it suitable for many air-handling and duct environments where high temperature or re-heat coils may exist. Without a proper flange, probes can shift, vibrate, or become misaligned—which can skew readings, reduce accuracy, and shorten sensor life. The A-22D-A03 simplifies installation with an adjustable fit for sensor diameters in the range of 4-7 mm, making it versatile for a variety of sensor models. As an accessory from the recognised BELIMO brand, it ensures compatibility, quality and professional finish for your control system. Whether retro-fitting existing ducts or installing new zones, using a correct mounting flange like this one helps maintain sensor accuracy, minimize maintenance issues and deliver consistent measurement data, making your automation or HVAC controls system more dependable.