优点: 1、自动防冻阀:地排除残留的冷凝水,防止蒸汽疏水阀冻结和破裂。 2、排防阀:不从管路上拆下疏水器,而容易地清扫其过滤网。 3、真空破坏器:防止管路产生真空度,防止管路变形。 Merits 1.Automatic frost valve:fully discharge residual condensate water,in order to prevent any freezing and cracking of steam trap. 2.Discharge valve:clean filtrating screen easily without removing steam trap from pipeline. 3.Vacuum destroyer:prevent pipeline from generating vacuum,and prevent distortion of pipeline.