在苛性碱清洗工况下，采用空腔填充设计的球阀可将使用寿命延长至12倍

In 2015, the ball valves being used in caustic cleaning services at this alumina refinery were experiencing severe scale buildup inside the ball cavity - leading to stem seizures or failures, causing frequent maintenance interventions and valve replacements. Some of the existing ball valves were lasting only 30 days. 频繁的运行中断和更换成本，促使该炼油厂寻求一种更可靠的阀门解决方案，以应对严苛的苛性碱环境。