本型號雙級水環真空系統做成同軸相串聯的兩級泵，兩級之間的通氣道由中間盤和連接管配成，因此結構比較緊湊。電動機和泵部分的傳動用聯軸器，泵和電動機安裝在同一個公共底座上。按抽封結構分為普通泵和A型泵。
This model of two-stage water-ring vacuum pump system is coaxial with two-stage pumps. The ventilation path between the two stages is consist of the center plate and connecting pipe, so the structure is very compact.The parts of electronic motor and pump is driven by coupling. The pump and electronic motor are installed on the same common pedestal.According to the structure of extraction and seal, it is divided into ordinary pump and model-A pump.

用途：Application:

    本型號泵主要用來抽吸、輸送空氣及其他氣體。例如用在化工行業的真空蒸餾、干燥，輕紡工業、造紙工業的真空脫水等。它作為機械增壓泵的前級泵封，可以大大提高機械增加泵的使用范圍。
The pump of this model is mainly used to extract, suct and transfer aire and other gases. For example, vacuum evaporation and drying in chemical industry, vacuum dehydration in textile and paper industry etc.It can be used as prepump sealing for Roots blower pump and the range of use for Roots blower pump can be greatly improved.

規格參數：Main specifications

型號Model	2S—185 2S—185A	2S—230	2S—12	2SK—25
極限真空Ultimate Vacuum(Pa)	3500
抽氣速率Pumping speed L/s	35	70	170	400
電機功率 Motor power  kw	5.5	11	30	55
轉速 Speed r.p.m	1440	1450	1470	980
進出氣口直徑Bore of air inlet &ouelet mm	50	50	65	100
進水口直徑Bore of water inlet port	G1/2“	25	G3/4“	G2“
重量Weight kg	185	420	605	1200