nash_elmo   无油,机泵同轴,直联设计
  
nash_elmo, Gardner Denver nash 真空泵适于抽除气体和水蒸汽,吸气压力可以达到  33mbarA (97%真空度)。当真空泵在吸气压力低于80mbarA的状态下长期工作时,y应联接汽蚀保护管以对泵进行保护。如配大气喷射器（见附件表）吸气压力可达10mbarA，喷射器可直接安装在真空泵上。

nash_elmo   vacuum pumps are  suitable for  evacuating gases  and wet
vapours down to  inlet pressures of 33 mbarA ( 97%  vacuum ). All these
vacuum pumps are supplied  with built-in cavitation  protection. For long-
term operation below 80 mbarA the cavitation protection should   be con-
nected  for   protecting the pump. An inlet   pressure of 10 mbarA can be
achieved by connecting a gas ejector (see accessories).  The gas ejector
can be mounted directly onto the vacuum pump.
 
   nash_elmo, Gardner Denver nash 2BV elmo-F 系列真空泵由2BV2系列，2BV5系列，2BV6系列组成。其中2BV2、2BV5系列为机泵同轴设计，非常节省空间（防护等级为IP54），2BV6系列为真空泵与电机直联结构型式.
The 2BV  nash_elmo  vacuum pumps  consists of 2BV2,2BV5 and 2BV6series.  The  2BV2, 2BV5  series  are  especially  space  saving  units  inmonoblock design (degree of protection IP54).The 2BV6 range is in close-coupled design with drive motor.