oil sealed rotary high vacuum pumps are made from various materials that ensure durability, efficiency, and compatibility with the substances they handle.
1. Pump Body
Cast Iron or Aluminum: The pump body is often made from cast iron for its strength and durability, or aluminum for a lighter weight and good corrosion resistance.
Stainless Steel: In applications requiring high corrosion resistance or cleanliness, stainless steel may be used.
2. Vanes
Carbon or Graphite: The vanes are typically made from carbon or graphite composite materials. These materials provide good wear resistance and self-lubricating properties.
Plastic Composites: Some pumps use high-performance plastic composites that are lightweight and resistant to wear and chemical degradation.
3. Rotors
Aluminum or Steel: The rotor is usually made from aluminum or hardened steel to ensure strength and resistance to deformation under operational stresses.
4. Seals
Rubber or Elastomers: Seals are often made from rubber or elastomeric materials that can withstand oil exposure and provide a good seal to maintain vacuum.
PTFE (Teflon): In some cases, PTFE seals may be used for their chemical resistance and low friction properties.
5. Oil Reservoir
Steel or Aluminum: The oil reservoir, which holds the lubricant, is typically made from steel or aluminum, depending on the pump design.
6. Filters and Screens
Metal Mesh or Plastic: Filters used to catch contaminants may be made from metal mesh or durable plastic materials that can withstand oil and high temperatures.
7. Other Components
Bearings: These are often made from steel or ceramic materials, depending on the application and required load-bearing capabilities.
Coatings: Some components may have protective coatings, such as anodizing or powder coating, to enhance corrosion resistance and durability.


How to maintain oil sealed rotary high vacuum pumps?
Power must be cut off to perform maintenance work: if necessary, disconnect all connections and drain the connected pipelines to atmospheric pressure
Electrical installation work must be carried out by qualified electrical professionals
If the machine is contaminated with harmful substances: please wear appropriate personal protective equipment
Risk of hot surface burns: Allow the machine to cool down before any touch operation is required
Do not use incompatible solvents to clean the machine
