Dry vacuum pumps are simply pumps that do not use fluids to contact the process gas or create a vacuum. Most dry vacuum rumps are run hot because there is no resident fluid for removing the heat generated by compressing gas and hence they have a cooling jacket for regulating internal temerarious to prevent possible failure due to overheating.
Hook and claw vacuum pump
Hook and claw pumps come in two configurations; a two stage and three stage type. The two stage configuration produces vacuum levels down to 5 mmHgA through gas compression only. The three stage type delivers vacuum levels less than 1 mmHgA by combining both mechanical and gas compression.
Practically, the hook and claw vacuum pump needs a larger footprint and is slightly noisier than rotary screw and rotary lobe pumps. Most dry vacuum pumps use lip seals that require frequent maintenance. The global Vac systems come with a standard design of single mechanical seals that eliminate the maintenance shortfalls associated with lip seals.
The claw vacuum pump does not use oil or any fluid to deliver its purpose. Oil less vacuum pumps are considered ideal for many applications because they are flexible, versatile and efficient. Not only do they eliminate the need for oil in their operation by also deliver thousands of working hours without necessitating cleaning and maintenance checks. They are environment friendly because they do not cause oil pollution as well as the bad smells associated with oil emissions. They let you say goodbye to contamination, costly maintenance, slowdowns, and oil odour, and say hallo to reliable, smoother, quieter, more efficient and cleaner oil free vacuum pumps that greatly improve your experience. Once you experience the hassle free operation of such a pump, you will literally stick to them.
When handling wet and corrosive vapours, hot running hook and claw vacuum pump systems are desirable. They prevent the corrosion of iron body components and take care of gas that can solidify at room temperature.