Siemens AVF4E125 Ultrasonic Flow Sensor

Feature & Principle

It is an ultrasonic flow sensor designed for Siemens intelligent valve system. It adopts transit-time ultrasonic measurement principle to detect volumetric flow of water in heating and cooling pipelines. It can transmit flow data to the valve controller for automatic flow regulation and energy consumption statistics. It is integrated with intelligent valve body, supports bidirectional flow detection, no pressure loss during measurement.

Specifications

Model: AVF4E125 Brand: Siemens Alternative code: S55845-Z216 Nominal size: DN125 Flange connection: DN100, PN16 Mounting length: 360 mm Medium: Water for HVAC heating / cooling system Max working pressure: 1600 kPa Installation: Flange mount inline on pipeline Application: Building HVAC, chiller and boiler hydronic loop control Certification: CE

Components & Diagnostics

Ultrasonic transducer pair, signal processing PCB, communication interface, stainless steel flow tube, terminal block. Common faults: transducer fouling, signal loss, flow reading drift, communication failure.

Product Brief

AVF4E125 ultrasonic flow sensor, Siemens intelligent valve flow measuring spare widely used for HVAC hydronic control overhaul and replacement.