中文技术说明供参考，译文尚待专业审核。原始英文说明及型号参数予以保留；选型前请与团队确认。
气源处理单元（FRL）
HED402 自动排水器
HAD 和 HED 自动排水器用于排出压缩空气管路中积聚的水分和冷凝液。
产品系列信息
目录内容描述产品系列。所选型号的尺寸、材料、压力限制及兼容性，须根据具体工况确认。
原始资料未提供此系列的独立规格表。请发送需求，以便确认合适的型号。
完整英文原始说明
The HAD and HED Auto Drain series are essential components for maintaining the reliability and longevity of your pneumatic system. These automatic drains are designed to efficiently remove accumulated water and condensate from compressed air lines, preventing potential issues such as corrosion, internal damage, and performance loss in downstream equipment like valves, cylinders, pneumatic tools and actuators.
By automatically discharging moisture from the system, the HAD and HED series help protect critical components, reduce maintenance costs, and ensure optimal operation of your entire pneumatic setup.