Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
A: The S13-M series is designed to be virtually maintenance-free. It utilizes a fully hermetically sealed corrugated tank that completely isolates the insulating oil from ambient air. This prevents moisture ingress and oxidation, ensuring stable insulation performance for 15+ years of continuous operation.