They can not be used for evacuating the oxygenic, poisonous and explosive gases and gases which can react with pump oil easily.Neither can they be used as compressor and transmission pump.

• 该泵不可用来抽含氧过高的、有毒的易爆的或与泵油发生化学作用的或对黑色金属有腐蚀作用的气体也不可当作压缩机或传输泵使用。