This guide covers operation and maintenance of silo vent filters. For applications and equipment selection, read our silo vent-filter selection article and the Tuff-Vent® product page.
Before a delivery, check the filling connection and the inspection status of the filter, cleaning system, level controls and pressure-protection equipment under the site’s operating procedure. Use the equipment manufacturer’s instructions for the installed arrangement.
Watch for symptoms such as visible dust release, abnormal pressure indications, poor cleaning or restricted airflow. Do not assume that a filter is functioning correctly solely because material can still be delivered into the silo.
Inspection and maintenance should address the filter elements, seals, cleaning components and associated controls. Isolate equipment and follow the site’s access and maintenance arrangements before working on it. Record defects and the work performed.
The filter and pressure-relief system perform different functions. Official guidance from NetRegs explains how unsuitable filter sizing and filling conditions can contribute to over-pressurisation. This article does not claim that a vent filter alone prevents fire or guarantees pressure safety.
