特点：
Features:

◆    体积小、维修简单
Small size, easy to maintain.

◆    阀片寿命较长，适宜在较高压强范围内使用
The life peroid of valve plate is long. It is suitable for the use under higher pressure range.

◆    具有水冷却结构
With water-cooling structure

应用：
Application:

▲往复式真空泵排气量较大，多用于真空浸渍、钢水真空处理、真空蒸馏、真空蒸发、真空浓缩、真空结晶、真空干燥、真空过滤及混凝土的真空作业等方面抽出气体。
Reciprocating pump has large volume of extraction, is mainly used for gas extraction in the aspect of vacuum impregnation, molten steel vacuum process, vacuum distillation, vacuum evaporation, vacuum concentration, vacuum crystallization, vacuum drying, vacuum filtering and vacuum work of concrete.

▲往复式真空泵对于抽除腐蚀性的气体或含有颗粒状灰尘的气体是不适用的。被抽气体中如果含有灰尘，在泵的进口处必须加装过滤器。
Reciprocating pump is not suitable for the extraction of corrosive gas or the gas with graininess dusts.Filter must be installed at the inlet of the pump if there exists dusts in the extracted gas.