Grit, dirt or any foreign matter accumulated in the pipe can hinder efficient ale operation and seriously damage ital ale parts. Thoroughly clean pipe internally with air or steam.

• 硬渣、污物或任何外部物质在管道内积累都可能妨碍阀门的工作效率并严重损坏阀门的关键部件。必须用空气或蒸气对管道内部进行彻底清洗。