this is the bracket component only

Durable Construction: High-grade materials designed to withstand the high-pressure demands of modern refrigerants in industrial HVAC applications

while specific patterns point to airflow restrictions

Precise Modulating Control: Uses a 2-10 VDC signal for accurate airflow regulation and system efficiency

replacing the 201472 gasket is a standard best practice to restore the unit to original factory specifications

Belimo ZS-GV-002 Weather Shield 318172-701 this is the bracket componentThe Belimo ZS GV 002 Weather Shield is a ruggedized actuator enclosure designed specifically for Belimo EV, RV, and AVK series actuators. Built to withstand harsh environmental conditions, this NEMA 4X weather shield provides critical protection against UV radiation, rain, snow, and dirt, ensuring the longevity of your HVAC valve control components. Field technicians utilize the ZS GV 002 when mounting electronic pressure independent valves (ePIV) or