Knowledge points of transformer oil drain valve

The transformer oil drain valve is a critical component mounted at the bottom of transformer tanks. Its primary function is to discharge aged or contaminated insulating oil during maintenance, and to facilitate oil sampling for quality testing. Constructed from corrosion-resistant materials like stainless steel or cast iron, it ensures airtight sealing to prevent oil leakage and maintain the transformer’s operational safety. Designed for easy operation, it can be manually controlled or equipped with an electric actuator for remote operation, adapting to various working conditions.