This InterApp guide explains how to preserve and store butterfly valves for long periods, covering storage rules, handling, and actuator maintenance.
The Preservation and Long Term Storage Procedure provides detailed instructions for protecting butterfly valves before installation. It covers general storage principles, handling precautions, and specific guidance for pneumatic and manual actuators.
Key points include storing the valve with the disc slightly opened, regularly operating valves that remain closed, and inspecting or replacing seals on pneumatic actuators after extended storage. The document also references related installation and maintenance guides for complete valve preparation.
If the valve cannot be kept slightly opened, it should be operated at least every 15 days to prevent sticking.