Operating Conditions to Note During Major Overhauls of Corrosion-Resistant Duct Fans

Operating Conditions to Note During Major Overhauls of Corrosion-Resistant Duct Fans

A corrosion-resistant duct fan is a type of fluid-handling machinery that relies on input mechanical energy to increase gas pressure and transport gas. The service life of centrifugal fans is determined by routine maintenance and major overhauls. In this article, we will share the operating conditions of corrosion-resistant duct fans and the key points to note when performing a major overhaul. 1. Replace spare parts and mechanical components listed on the corrosion-resistant duct fan’s label in a timely manner. 2. Inspect the shaft, sleeve, bearings, impeller, pump cover, and pump housing for wear, corrosion, or cavitation. Based on the actual condition, determine whether these major components of the corrosion-resistant duct fan need to be replaced. 3. Replace the couplings, diaphragms, and reinforcement screws of the corrosion-resistant duct fan. Additionally, it is necessary to replace the oil seals, gaskets, and precision components of the centrifugal fan’s pump body. 4. After these maintenance operations, the corrosion-resistant duct fan must be tested. Furthermore, to ensure the effectiveness of the repairs and significantly extend the service life of the corrosion-resistant duct fan, testing must be conducted using professional testing instruments.