SK/2SK series water circulating vacuum pump owns followadvantages: Less power consuming, lower noise, suitable for bothnormal gas or flammable/explosive gas or steam. By changing thematerial of main parts or having anticorrosive treatment, it canalso suck out the corrosive gas. 2YK series vacuum pump has veryhigh vacuum degree and strong adaptability. It's widely used in thevacuum-plant treatment of metallurgy, medical industry, food,electrical power and medicine, etc.