Cleaning machines, enclosed vacuum pumps

There are many types of vacuum pumps, designed to produce various levels of vacuum for specific types of research, development, and production work, and for use in enclosed cleaning machines. The four t5rpes most commonly used with enclosed cleaning machines are desaibed below. 

This popular type of rotating impeller positive displacement vacuum pump is often used in vacuum enclosed cleaning machines. 

These are the fourth type of positive-displacement vacuum pumps used as the "engines" of enclosed vacuum cleaning machines. 

It is important to note the requirements for the vacuum pumps used in enclosed vacuum cleaning machines. They do not have to ... 

P. Systems that initially remove air with vacuum and later remove solvent with vacuum are referred to as vacuum-to-vacuum systems within the EPA NESH/ P literature. It is perfectly possible, and some firms have done or are doing so, to use more than one type of vacuum pump in an enclosed cleaning machine. For example, some firms use rotary piston pumps to remove air from the work chamber These pumps require oil changes and mist eliminators. But they don t contaminate the cleaning solvent with seal oil because solvent never contacts the pump. 

---